technical specification - melbourne airport
TRANSCRIPT
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TECHNICAL SPECIFICATION
MAS-ELC-003
LV SWITCHBOARDS SPECIFICATION
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DISCLAIMER
This Specification has been developed by Australia Pacific Airports (Melbourne) Pty Ltd (Melbourne Airport) for use in the construction and maintenance of works at Melbourne Airport in order to:
Provide guidance to persons planning and performing those works as to airport specific requirements; and
Promote consistency in utilities infrastructure across the airport generally
While Melbourne Airport expects users to comply with this Specification, users should keep in mind that in some circumstances a higher standard than the minimum set out in this Specification may be warranted. In particular, users are also required to:
Exercise their professional judgement as to whether this Specification is appropriate to the particular circumstances
Bring to the task their knowledge of other relevant industry standards and practices that should also apply; and
Request from Melbourne Airport, authority to depart from this Specification, and advise why such departure is appropriate
The use of the information contained in this Specification is at the user’s sole risk. Melbourne Airport, officers, employees and agents:
Make no representations, express or implied, as to the accuracy of the information contained in this Specification
Accept no liability for any use of the information contained in this Specification or reliance placed on it; and
Make no representations, either express or implied, as to the suitability of the information contained in this Specification for any particular purpose
Melbourne Airport does not endorse, or in any respect warrant, any third party products or services by virtue of any information, material or content referred to, included in, or linked to from this Specification.
Please note that this Specification may be updated from time to time without notice and shall be subject to Periodic Review as part of the Melbourne Airport Document Control Process (MAS-GEN-002). Users are required to check they are referring to the most recent version.
Copyright in this document belongs to Melbourne Airport.
Version Prepared by Authorised by Publish Date
1 GHD Pty Ltd Jeff Mansfield 22.06.18
2 GHD Pty Ltd Jeff Mansfield 10.07.18
3 GHD Pty Ltd Jeff Mansfield 01.09.19
3.1 APAM Jeff Mansfield 13.12.19
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Contents
1. Scope ............................................................................................................................................. 1
1.1 Mandatory and non-mandatory requirements ..................................................................... 1
1.2 Limits of specification ........................................................................................................... 1
1.3 Deviation from specification ................................................................................................. 1
2. General requirements .................................................................................................................... 2
2.1 Standard .............................................................................................................................. 2
2.2 APAM Standards ................................................................................................................. 2
2.3 Interpretation ........................................................................................................................ 3
2.4 Submissions ......................................................................................................................... 4
2.5 Inspection ............................................................................................................................. 5
2.6 Marking and labelling ........................................................................................................... 6
2.7 Testing & commissioning ..................................................................................................... 8
2.8 Operation and maintenance .............................................................................................. 10
3. Main LV switchboards .................................................................................................................. 12
3.1 Scope ................................................................................................................................. 12
3.2 Switchboard manufacturer ................................................................................................. 12
3.3 Switchboard requirements ................................................................................................. 12
3.4 SCADA / EMCS interface .................................................................................................. 14
3.5 Doors and covers ............................................................................................................... 16
3.6 Factory finishes .................................................................................................................. 17
3.7 Busbars .............................................................................................................................. 18
3.8 Neutral links and earth bars ............................................................................................... 20
3.9 Cable entries ...................................................................................................................... 20
3.10 Bus trunking system entry ................................................................................................. 20
3.11 Internal wiring ..................................................................................................................... 21
3.12 Assembly installation ......................................................................................................... 22
3.13 Assembly entries ................................................................................................................ 22
3.14 Marking and labelling ......................................................................................................... 23
3.15 Controls and communications ........................................................................................... 23
4. Main Distribution Switchboards .................................................................................................... 24
4.1 Scope ................................................................................................................................. 24
4.2 Switchboard manufacturer ................................................................................................. 24
4.3 Switchboard requirements ................................................................................................. 24
4.4 Doors and covers ............................................................................................................... 25
4.5 Factory finishes .................................................................................................................. 26
4.6 Busbars .............................................................................................................................. 27
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4.7 Neutral links and earth bars ............................................................................................... 28
4.8 Cable entries ...................................................................................................................... 28
4.9 Internal wiring ..................................................................................................................... 28
4.10 Assembly entries ................................................................................................................ 30
4.11 Marking and labelling ......................................................................................................... 30
4.12 Controls and communications ........................................................................................... 30
5. SDA switchboards ........................................................................................................................ 31
5.1 Scope ................................................................................................................................. 31
5.2 Switchboard manufacturer ................................................................................................. 31
5.3 SDA board requirements ................................................................................................... 31
5.4 Doors and covers ............................................................................................................... 32
5.5 Factory finishes .................................................................................................................. 33
5.6 Busbars .............................................................................................................................. 34
5.7 Neutral links and earth bars ............................................................................................... 35
5.8 Cable entries ...................................................................................................................... 35
5.9 Internal wiring ..................................................................................................................... 36
5.10 Assembly entries ................................................................................................................ 37
5.11 Marking and labelling ......................................................................................................... 37
5.12 Controls and communications ........................................................................................... 38
6. Light & power distribution boards ................................................................................................. 39
6.1 Scope ................................................................................................................................. 39
6.2 Distribution board manufacturer ........................................................................................ 39
6.3 Switchboard requirements ................................................................................................. 39
6.4 Doors and covers ............................................................................................................... 40
6.5 Factory finishes .................................................................................................................. 41
6.6 Busbars .............................................................................................................................. 42
6.7 Neutral links and earth bars ............................................................................................... 43
6.8 Cable entries ...................................................................................................................... 43
6.9 Internal wiring ..................................................................................................................... 44
6.10 Assembly entries ................................................................................................................ 45
6.11 Marking and labelling ......................................................................................................... 45
6.12 Controls and communications ........................................................................................... 46
7. Mechanical Services Switchboards (MSSB’s) ............................................................................. 47
7.1 Scope ................................................................................................................................. 47
7.2 MSSB board manufacturer ................................................................................................ 47
7.3 Switchboard requirements ................................................................................................. 47
7.4 Doors and covers ............................................................................................................... 49
7.5 Factory finishes .................................................................................................................. 50
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7.6 Busbars .............................................................................................................................. 50
7.7 Neutral links and earth bars ............................................................................................... 51
7.8 Cable entries ...................................................................................................................... 52
7.9 Internal wiring ..................................................................................................................... 52
7.10 Assembly entries ................................................................................................................ 53
7.11 Marking and labelling ......................................................................................................... 54
7.12 Controls and communications ........................................................................................... 54
8. UPS power distribution boards .................................................................................................... 55
8.1 Scope ................................................................................................................................. 55
8.2 Distribution board manufacturer ........................................................................................ 55
8.3 Switchboard requirements ................................................................................................. 55
8.4 Doors and covers ............................................................................................................... 56
8.5 Factory finishes .................................................................................................................. 57
8.6 Busbars .............................................................................................................................. 58
8.7 Neutral links and earth bars ............................................................................................... 59
8.8 Cable entries ...................................................................................................................... 59
8.9 Internal wiring ..................................................................................................................... 59
8.10 Assembly entries ................................................................................................................ 61
8.11 Marking and labelling ......................................................................................................... 61
8.12 Controls and communications ........................................................................................... 61
9. Switchboard components ............................................................................................................. 62
9.1 Switch-Isolator / Tier Isolator ............................................................................................. 62
9.2 Fuse-switch units ............................................................................................................... 62
9.3 Auto-transfer switches ....................................................................................................... 62
9.4 Moulded case and miniature circuit breakers .................................................................... 63
9.5 Residual Current Operated Circuit Breakers (RCBO) ....................................................... 63
9.6 Air circuit breakers ............................................................................................................. 64
9.7 Fuses with enclosed fuse links .......................................................................................... 65
9.8 Current transformers (protection) ...................................................................................... 66
9.9 Surge Protection Devices (SPD) ....................................................................................... 66
9.10 Current transformers (metering) ........................................................................................ 68
9.11 Revenue metering .............................................................................................................. 69
9.12 Check metering .................................................................................................................. 69
9.13 Electrical indicating measuring meters .............................................................................. 70
9.14 Contactors .......................................................................................................................... 71
9.15 Control devices and switching elements............................................................................ 72
9.16 Semiconductor controllers and contactors ........................................................................ 73
9.17 Programmable Logic Controllers (PLC) ............................................................................. 74
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9.18 Controller device interfaces ............................................................................................... 75
9.19 Indicator lights .................................................................................................................... 75
9.20 Indicating counters ............................................................................................................. 75
9.21 Alarm annunciators ............................................................................................................ 76
9.22 Audible alarm devices ........................................................................................................ 77
9.23 Extra-low voltage transformers .......................................................................................... 77
9.24 Batteries and chargers ....................................................................................................... 77
9.25 Anti-condensation heaters ................................................................................................. 78
9.26 Spares cabinet ................................................................................................................... 79
Table index
Table 1 - Schedule of main LV switchboard requirements – MSBs ....................................................... 12
Table 2 - Factory finishes schedule – MSBs .......................................................................................... 17
Table 3 - Schedule of distribution switchboard requirements – MDBs .................................................. 24
Table 4 - Factory finishes schedule – MDBs .......................................................................................... 26
Table 5 - Schedule of SDA board requirements .................................................................................... 31
Table 6 - Factory finishes schedule – SDAs .......................................................................................... 34
Table 7 - Schedule of light & power distribution board requirements .................................................... 39
Table 8 - Factory finishes schedule – DBs ............................................................................................. 41
Table 9 - Schedule of mechanical services switchboards requirements ............................................... 48
Table 10 - Factory finishes schedule – MSSBs ..................................................................................... 50
Table 11 - Schedule of uninterruptible power distribution board requirements ..................................... 55
Table 12 - Factory finishes schedule – UPS DBs .................................................................................. 57
Table 13 - Control relay selection........................................................................................................... 73
Appendices
Appendix A – Typical details & single line diagrams
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1. Scope
This Specification details the design and construction requirements for new Main LV Essential and Non-Essential Switchboards (MSBs), Distribution Switchboards (DBs), SDA Boards, Mechanical Switchboards (MSSBs) and UPS Distribution Switchboards and Light and Power Distribution Boards on the Melbourne Airport LV network. It shall be used by Contractors for works at Melbourne Airport.
National standards, international standards and national legislation shall take precedence over this Specification where they present a higher level of service or protection.
1.1 Mandatory and non-mandatory requirements
The following language key describes the requirements of imperative statements within this Specification.
The word:
Shall - describes mandatory requirements
Should - describes non-mandatory best practice recommendations; and
May - describes possible options that are not mandatory or best practice
1.2 Limits of specification
Users of this Specification shall explicitly demonstrate compliance with the APAM LV Design Standards. Compliance shall be demonstrated through:
Adopting appropriate standards and providing explicit reasons for their selection; or
Providing an explicit, evidence based, case study supporting compliance with this specification.
The general statement “in accordance with Melbourne Airport Standards”, shall not be deemed acceptable without further detail.
1.3 Deviation from specification
Where the requirements of this Specification are not able to be met through the design process, a request for deviation shall be made. Requests for deviation shall explicitly state the areas where a proposal does not comply. As a minimum, submissions shall include detailed commentary on:
The reason for deviation from this Specification;
How the deviation complies with all other mandatory standards or regulations; and
Any impacts on safety, reliability, ongoing cost, operability and maintenance.
Deviations from any part of this Standard shall be submitted in writing to the relevant APAM
stakeholders for endorsement before they are implemented or incorporated into a design. Approval of
a deviation from this Standard is not guaranteed and is unlikely to be granted without a compelling
reason. Approval of a deviation shall not constitute approval of the same approach in the future.
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2. General requirements
Provide switchboards and distribution boards as documented on the drawings and schematics.
Single line diagrams and general arrangement drawings provided are intended as a guide to tenderers
of the configuration, arrangement, functionality and rating of the equipment to serve the installation.
The Contractor shall make due allowance for ensuring the switchboards to be provided comply in all
respects with the Electricity Act including all referenced standards and the requirements of Authorities
having Jurisdiction over the works.
The requirements set out in this document form part of a set of Melbourne Airport requirements
(including Metering, data cabling, LV System Design Standards) all of which must be met.
In the event that drawing notations or specification requirements differ from legislative requirements
stated in any standard or code or by any Authority having jurisdiction over the works the legislation
requirement shall prevail, and the Contractor shall include due allowance in the tender price.
Variation claims will not be accepted for the Contractor’s failure to meet legislated requirements
irrespective of what is shown on the tender drawings.
2.1 Standard
2.1.1 General:
Standard: To AS/NZS 3000 and AS/NZS 61439.1
2.1.2 Electrical installation:
Designing to the wiring regulations: To SAA HB 301
Selection of cables: To AS/NZS 3008.1.1
Degrees of protection (IP code): To AS 60529
EMC: To AS/NZS 61000
2.1.3 Electrical safety:
Main LV Switchboards: Tier isolators providing 2 points of electrical isolation for electrical safety requirements.
2.2 APAM Standards
This technical design standard shall be read in conjunction with the following APAM Standards:
Standard Ref Title
MAS-GEN-4 Maintainability
MAS-GEN-5 CAD
MAS-GEN-6 Asset ID Information
MAS-GEN-7 GIS
MAS-GEN-8 BIM
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Standard Ref Title
MAS-MCH-001 Mechanical Services
MAS-MCH-002 Mobile Plant
MAS-MCH-007 BMS and Automated Controls
MAS-MCH-022 Aerobridges
MAS-ELC-002 High Voltage Systems
MAS-ELC-003 LV Switchboards – Technical Specification
MAS-ELC-004 High Voltage Safety and Operational Procedures
MAS-ELC-005 Aeronautical Ground Lighting
MAS-ELC-006 EMCS Standard
MAS-FPR-001 Fire Protection, Public Address, EWIS and Hearing Loops
MAS-ICT-001 Communications Room Design Specification
MAS-ICT-006 Structured Cabling Standard
2.3 Interpretation
2.3.1 Abbreviations
For the purpose of this specification the following abbreviations apply:
- TTA: Type-tested assemblies
- NTTA: Non type-tested assemblies
- PTTA: Partially type-tested assemblies
2.3.2 Definitions
For the purpose of this specification the following definitions apply:
- MSB: Main LV Switchboard
- MDB: Main Distribution Switchboard
- MSSB: Mechanical Services Switchboard
- SDA: Supply Distribution Authority – Tennant Supply Metering Switchboard
- DB: Distribution Board
- NE: Non Essential service
- E: Essential service
- LS: Life Safety services
- Custom-built assemblies: Low voltage switchgear and controlgear assemblies manufactured to
order and incorporating either purpose-built or proprietary components or purpose-built or
proprietary busbar assemblies.
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- Tier Isolator: Main load break switch for switchboard tier isolation, enabling dual points of
electrical isolation for health and safety purposes.
- Fault current limiters: Circuit opening devices designed or selected to limit the instantaneous
fault current
- Incoming busbars: Busbars connecting incoming terminals to the line side terminals of main
switches
- Main circuit supply busbars: Busbars connecting incoming functional unit terminals, or
incoming busbars where no main switches are included, to outgoing functional unit terminals or
outgoing functional unit tee-offs
- Rated currents: Rated currents are continuous uninterrupted current ratings within the assembly
environment under in-service operating conditions
- Rated short-circuit currents: Maximum prospective symmetrical root mean square (r.m.s.)
current values at rated operational voltage, at each assembly incoming supply terminal
- Tee-off busbars: Busbars connecting main busbars to incoming terminals of outgoing functional
units.
2.4 Submissions
2.4.1 Calculations
General: Submit detailed certified calculations verifying design characteristics to IEC 60865 and
AS 60890
2.4.2 Routine tests
Standard: to AS 61439.1
General: Submit reports of electrical and mechanical routine functional tests at the factory using
externally connected simulation circuits and equipment
Dielectric Test: NTTAs and PTTAs: 2.5kV r.m.s. for 15 seconds
2.4.3 Type tests
Standard: to AS 61439.1
General: Submit type test certificates for components, functional units and assemblies. Verify
that type tests and internal arcing-fault tests, if any, were carried out at not less than
the designated fault currents at rated operational voltage.
Alterations: Submit records or all alternations made to TTA assemblies since the tests
Test Facility: Accredited by a NATA registered testing authority
2.4.4 Shop drawings
General: Submit detailed shop drawings showing:
- Types, model numbers and ratings of assemblies
- Component details, functional units and transient protection
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- Detailed dimensions
- Shipping sections, general arrangement, plan view, front elevations and cross-
section of each compartment
- Projections from the assembly that may affect clearances or inadvertent
operation, such as handles, knobs, arcing-fault venting flaps and withdrawable
components
- Fault level and rated short circuit capacity characteristics
- IP rating
- Fixing details for floor or wall mounting
- Front and back equipment connections and top and bottom cable entries
- Door swings
- External and internal paint colours and paint systems
- Quantity, brand name, type and rating of control and protection equipment
- Construction and plinth details, ventilation openings, internal arcing-fault venting
and gland plate details
- Terminal block layouts and metering and control circuit identification
- Single line power and circuit diagrams for all new and modified switchboards
- Details of mains and submain routes within assemblies
- Busbar arrangements, links and supports, spacing between busbar phases and
spacing between assemblies, the enclosure and other equipment and clearances
to earthed metals
- Dimensions of busbars and interconnecting cables in sufficient detail for
calculations to be performed
- Form of separation and details of shrouding of terminals
- Labels and engraving schedules
2.5 Inspection
2.5.1 Notice
Notice: Give a minimum of 10 (ten) working days’ notice prior to inspection of assemblies so
that inspection may be made of the following:
- Fabrication and painting completed
- Factory assembly completed, with busbars exposed and functional units in place
- Assembly ready for routine testing
- Assembly installed before connection
- Assembly installed and connected
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2.5.2 Travel
Travel: Where manufacturer’s works are interstate or overseas include all travel and
disbursement costs associated with 3 (three) Client Representatives. Costs to include
as a minimum the following items:
- Flights
- Airport Transfers
- Hotel Accommodation
- Meals and Refreshment
- Ground Transportation
2.6 Marking and labelling
2.6.1 General
General: Provide labels including control and circuit equipment ratings, functional units, notices for operational and maintenance personnel, incoming and outgoing circuit rating, sizes and origin of supply and kW ratings of motor starters.
2.6.2 Labels on assembly exteriors
Manufacturer’s name: Required
Assemblies: Label with essential markings
Designation labels: For other than main assemblies, provide designation label stating source of electrical supply. Identify separate sections of enclosures
Assembly controls: Label controls and fault current limiters, including the following:
Circuit designation for main switches, main controls and submains controls
Details of consumer's mains and submains
Use different colours on labels to distinguish operational requirements such as normal operation, operation under fire or emergency conditions
Incoming busbar or cable rating to first tee-off
Fuse link size and rating
Circuit breaker settings
2.6.3 Labels on assembly interiors
General: Provide labels for equipment within assemblies. Locate so that it is clear which equipment is referred to, and so that lettering is not obscured by equipment or wiring
MCCBs: If circuit breaker manufacturer’s markings are obscured by operating handle mechanisms or motor operators, provide additional markings open to view on, or next to, the circuit breaker
Arrestors: Label each group of primary arrestors, stating their purpose and the necessary characteristics
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2.6.4 Danger, warning and caution notices
Busbars: If polymer membrane coating is used without further insulation, provide warning notices on the front cover near the main switch or local main switch and on rear covers, indicating that busbars are not insulated.
Fault current limiters: In assembly sections containing fault current limiter fuses provide caution notices fixed next to the fault current limiters, stating that replacement fuse links are to match the installed fuse link ratings, make and characteristics. Provide separate label stating make and fault current limiting fuse ratings.
Remote control: To prevent accidental contact with live parts, provide warning notices for equipment on assemblies not isolated by main switch or local main switch.
Stand-by power: Provide warning notices stating that assemblies may be energised from the stand-by supply at any time.
Anti-condensation heaters: To prevent accidental switching off, provide caution notices for anti-condensation heaters
Insulation and shrouding: For insulation or shrouding requiring removal during normal assembly maintenance, provide danger notices with appropriate wording for replacement of insulation shrouding before re-energising assemblies.
Positioning: Locate notices so that they can be readily seen, next to or, if impracticable, on busbar chamber covers of functional units and behind the front cover of functional units. Provide circuit identification labels in the cabling chamber of each functional unit, located next to external terminations.
Arc Flash Provide arc flash warning notice indicating as a minimum the arc flash rating and the recommended PPE for the switchboard. (Note: arc flash levels are to be designed to be as low as possible on all switchboards).
2.6.5 Schedule cards
General: For general light and power distribution assemblies, provide schedule cards of minimum size 200 x 150 mm, with typewritten text showing the following as-installed information:
Submain designation, rating and short-circuit protective device Light and power circuit numbers and current ratings, cable sizes and
type and areas supplied Circuit numbers to match field circuit labels (e.g. on GPO covers).
Mounting: Mount schedule cards in a holder fixed to the inside of the assembly or cupboard door, next to the distribution circuit switches. Protect with hard plastic transparent covers or lamination.
2.6.6 Single-line diagrams
Assemblies: Provide single-line diagrams and internal arrangement workshop drawings
Format: Non-fading laminated print, at least A3 size, showing the system as installed
Mounting: Enclose in a non-reflective PVC frame or lamination and wall mount close to assembly
2.6.7 Marking cables
General: Identify the origin and cable size of wiring with legible indelible marking
Identification labels: Provide durable labels fitted to each core and sheath, permanently marked with numbers, letters or both to suit the connection diagrams
Multicore / Trefoil cables: Identify multicore cables and trefoil groups at each end with durable non-ferrous tags clipped around each cable or trefoil group
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2.6.8 Shroud material
General: Where transparent insulating shroud material is installed it shall be infra-red transparent to facilitate accurate and trouble free thermographic testing and sensing without the need for shroud removal.
2.7 Testing & commissioning
2.7.1 General
General: Commission all components of the assemblies to ensure the correct interfacing operation and control of all systems to the satisfaction of the Client’s Representative. Arrange for and give two weeks’ notice so that the commissioning may be witnessed for approval
Provide: All necessary software, equipment and personnel necessary to fully program and configure all systems to the satisfaction of the Client’s Representative.
Cleaning: Following the completion of the commissioning and prior to Practical Completion, thoroughly clean all components of the electrical installation to the satisfaction of the Client’s Representative.
Place into Operation: Following commissioning, operate each component and system to the satisfaction of, and to the convenience of the Client’s Representative, to provide evidence that each component is working satisfactorily.
2.7.2 Testing and commissioning
Testing: All materials and equipment shall be tested in accordance with the relevant publications of the Standards Association or the Australian Standards Institution, both at the manufacturer’s works and on site as applicable.
The complete installation shall be progressively and finally tested by the Contractor to ensure that it complies with the specification, is mechanically and electrically safe and it will operate correctly under normal, emergency and fault conditions. All control, protection and operative devices shall be checked for correct adjustment and rating. All test equipment shall be provided by the Contractor.
Defects: All faulty materials and equipment shall be rectified free of charge by the Contractor. He shall also be required to ensure that faulty manufactured items are rectified by the Manufacturer at no cost to the Principal.
On site testing: Shall include the following:
Confirm that circuit protective devices are sized and adjusted to protect installed circuits
Calibrate, set and adjust control instruments, control systems and safety controls
Calibrate, set, tune and adjust environmental and energy control systems
Mechanically check all clamps, fixings and terminations Replace all defective equipment including all faulty lamps and tubes,
and noisy discharge lighting auxiliary equipment Check that all phase identifications match throughout the installation.
In this regard correct phase sequence shall not be deemed sufficient proof
Check that there are not expansion problems with long runs of PVC conduits
Tests as required by Supply Authority Regulations
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2.7.3 Certification
Certification: On completion of the commissioning of the complete installation, provide a written and signed statement that all aspects of the design and installation:
Have been fully programmed as necessary. Have been fully tested. Comply with the intent of the contract. Comply with the requirements of all relevant authorities. Comply with the requirements of all relevant standards and codes. Is fit for purpose and suitable for the intended use. Where such statements cannot be expressly guaranteed by the
contractor, provide similar statements prepared by the specialist sub-contractor and project engineer to underwrite the statements provided.
Report: Submit reports indicating observations and results of tests and compliance or non-compliance with requirements.
2.7.4 Training to Principal’s staff
Staff Training: At the completion of the works, the contractor shall be responsible for providing instruction to the Principal’s staff at agreed times in the correct operation and maintenance of the systems. Instruction shall include a step-by-step demonstration of all procedures required for day-to-day operation of the complete installation, and shall include reference to operation and maintenance manuals and as constructed drawings.
Training Manual: A comprehensive description and overview of the training instructions shall be prepared by the contractor and handed to the attendees and frequent reference made to these instructions throughout the training session. Use items and procedures listed in the final draft operation and maintenance manuals as the basis for instruction. Review contents in detail with the principal’s staff.
Training Certificates: Provide written certification of attendance and participation in training for each attendee. Provide register of certificates issued.
Qualified Trainer: Use only qualified manufacturer’s representatives who are knowledgeable about the installations.
2.7.5 Client acceptance
Acceptance: At the conclusion of the installation, a preliminary walk through with the installation contractor and the client’s representative will be performed, to:
check for installation quality accurate performance of the work, and to verify the accuracy of as built documents
Rectification: Complete any modifications to the documentation or the installation that may be required within a two week period of the walk through. Client acceptance will be given following a final walk through with the installation contractor and the client’s representative if all previous identified issues have been satisfactorily addressed.
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2.8 Operation and maintenance
2.8.1 General
Standard: To AS 2467
2.8.2 Thermographic surveys
General: Undertake a thermographic survey of all busbars, equipment, terminations and connections in the Main Switchboard and any distribution switchboards with a full load current exceeding 200 A/ph.
Specialist: Tests shall be performed by an independent specialist.
Timing: Perform testing just prior to practical completion when all loads are connected and again just prior to the end of the maintenance period.
Load: Ensure that all loads are connected and ON. Where plants operates intermittently, ensure surveys are undertaken when loads are operating.
Reports: Submit photographic evidence of any hot spots detected with a comprehensive report which includes ambient and load conditions under test. Rectify any defects found and re-survey prior to submitting final reports.
2.8.3 Operational and maintenance manuals
Requirement: Provide all operational and maintenance documentation necessary to operate and maintain the equipment and systems installed.
2.8.4 Maintenance requirements
Requirements: Provide all labour and material necessary to maintain the electrical installation, including all items commonly referred to as consumable.
Site control: Report to the principal's designated representative on arriving at, and before leaving the site.
Notification of defects: When defects in the installation are identified, notify the principal in writing.
General: Provide maintenance work including, but not limited to, the following:
The procedures set out in the operational and maintenance manuals provided.
Attend to reported defects and complaints. Check for and repair corrosion. Remove rubbish and clean equipment. Thoroughly check for and rectify any unsafe conditions. Replace faulty or damaged parts and consumable components. Check anti-vibration supports, brackets and clamps, holding down
bolts and flexible connections, for deterioration and for freedom of movement of assembly.
Safety signs maintenance: To AS 1319.
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Tasks: Perform the following tasks:
The procedures set out in the operational and maintenance manuals provided.
Carry out a thermal scan of joints and cable terminations by use of an infrared temperature detector or cameras and repair any joints showing high temperatures.
Check for hot joints, burnt insulation and burnt contacts. Check electrical connections for tightness. Check operation of all electrical components and systems. Check indicating lights and replace defective lamps. Check overload settings. Check and report any changes to controls and wiring. Provide maintenance in accordance with manufacturer's
recommended maintenance program.
Standards:
Electrical equipment generally: To AS/NZS 3760. Switchboards: To AS 2467.
2.8.5 Cleaning
General: Progressively clean the interior of components as they are installed. Inspect the interior of components on installation and remove obstructions.
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3. Main LV switchboards
3.1 Scope
General: This section covers the requirements for Main LV Essential and Non-Essential
Switchboards (MSBs).
3.2 Switchboard manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Nilsen
- DRC Switchboards
- LAI Switchboards
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
3.3 Switchboard requirements
General: The manufacture of the Main LV Switchboard(s) will comply with the following
requirements listed in Table 1 below.
GA: Refer to General Arrangement drawing, MELBAIR-UTL-AP-LEX-DR-ET-0032
MELBAIR-UTL-AP-LEX-DR-ET-0033 for typical details and arrangement
Table 1 - Schedule of main LV switchboard requirements – MSBs
Parameter Requirement
Type: Free standing, floor mounted assembly
Construction: 3 mm temper zero marine grade aluminium or steel, fully welded, aluminium or
steel channel plinth
IP Rating: IP 42 (indoor)
IP 56 (outdoor)
Fault Rating: 100 kA for 1 second, unless stated otherwise on drawings.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 3B
Supply Status Indication Panel mounted LED indicator lamps connected to “LINE” side of incoming
ACB’s c/w lamp test facility.
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Parameter Requirement
Ventilation: Weatherproof louvres with stainless steel gauze retained by metal frame to
maintain design operating temperatures at full load.
Arc Fault Minimisation: Integrated arc fault detection and circuit breaker disconnection facility c/w local
over-ride for thermographic surveying. Switchboards and system shall be
designed to keep arc flash levels as low as possible.
Temperature Rise: 30°C above ambient of 40°C .
Metering: Revenue Metering on incomer circuits to IEC 62053 with class 0.5 accuracy.
Tier check metering to be provided on all tier isolation devices connected
directly from the circuit breaker protection relay module.
Other meters as per diagrams appended.
Remote communication with APAM EMCS network via Modbus gateway for all
meters.
SCADA Interface: Via APAM IT network using Modbus gateway and remote I/O modules
Switchgear: ACBs: as indicated on the drawings
MCCBs: as indicated on the drawings
Motor Operators: On all ACBs and all Essential MCCBs
Automatic Transfer Switch
(ATS):
Mains and Generator ACBs c/w SCADA interface and controls.
Spare Capacity: Minimum 20% spare circuit breakers fitted.
Equipped Spares shall be split between 250A, 400A and 630A CBs.
Surge Protection: Provide electronic surge protection as documented.
Connection: Front connected
Busbars: Copper busbar supported using proprietary support system (Kentan or similar)
Tier Isolation Provide tier isolation switched circuit breaker for each tier section of outgoing
circuit breakers as documented.
Neutral: Fully sized as Active Conductors
Cable Entry: Top / Bottom Entry
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed
to LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with
metering facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Outer doors and panels, and internal escutcheons fitted with chrome plated lift
off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
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Parameter Requirement
Lifting Provisions: For assemblies with shipping dimensions exceeding 1800 mm high x 600 mm
wide, provide fixings in the supporting structure and removable attachments for
lifting
Assembly: Provide concealed fixings or brackets to allow mounting and fixing of assemblies
in position without removing equipment.
Plinth: Provide aluminium channel plinth, with toe-out profile, nominal 75mm high x
40mm wide x 6mm thick, for mounting complete assemblies on site. Drill M12
clearance holes in assembly and channel and bolt assemblies to channel.
Thermographic Surveying: Provide infra-red transparent shrouds over terminations and busbar joints to
permit in-service thermographic surveys to be carried out safely. Provide
blackout covers where necessary to enable arc fault detection system to operate
correctly.
3.4 SCADA / EMCS interface
3.4.1 General
Requirement: The LV MSB will be connected to APAM IT backbone. A remote I/O module shall be installed to retrieve all of the tier’s signals to the BMS. The aim is to minimise inter-tier wiring on site and to commission the reporting to the SCADA at the manufacturer’s factory.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
3.4.2 Circuit breakers
ACB’s: All incoming and bus-tie ACB’s will be provided with status monitoring for the
following functions via the remote I/O module:
- Circuit Breaker (Closed) status,
- Circuit Breaker (Open) status,
- Circuit Breaker (Tripped) status,
- Circuit Breaker (Withdrawn) status,
- Circuit Breaker (Auto) Status.
Non- Ess MCCB’s: All (NE) out-goer MCCB’s will be provided with status monitoring for the
following functions via the remote I/O module:
- Circuit Breaker (Closed) status,
- Circuit Breaker (Open) status,
- Circuit Breaker (Tripped) status,
Essential MCCB’s: All (E) out-goer MCCB’s will be provided with status monitoring for the
following functions via the remote I/O module:
- Circuit Breaker (Closed) status,
- Circuit Breaker (Open) status,
- Circuit Breaker (Tripped) status,
- Circuit Breaker (Withdrawn) status,
- Circuit Breaker (Auto) Status.
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Life Safety MCCB’s: All (LS) out-goer MCCB’s will be provided with status monitoring for the
following functions via the remote I/O module:
- Circuit Breaker (Closed) status,
- Circuit Breaker (Open) status,
- Circuit Breaker (Tripped) status,
- Circuit Breaker (Withdrawn) status,
3.4.3 Tier isolators
Tier Isolation: All tier isolator circuit breakers will be provided with status monitoring for the
following functions via the remote I/O module:
- Isolator (Closed) status,
- Isolator (Open) status,
Metering connection to be provided from the circuit breaker protection relay to
be connected to the APAM EMCS network via Modbus gateway.
3.4.4 Load shedding / management
Requirement: All essential MCCBs will be provided with motor operators and shunt trip
facilities enabling all essential (E) MCCBs to be automatically opened upon
detection of mains failure and then re-closure via the SCADA network and
MCCB motor operators.
General: Remote / Manual operation of motor operators via panel mounted selector
switch
3.4.5 SCADA / EMCS gateway
Requirement: Provide a RS485 to Ethernet Modbus / TCP communications gateway.
General: DIN Rail Mounted.
Class 3 (POE).
Protocol: Modbus TCP/IP / RS485.
Ethernet Ports: 2 ports – 10/100 Base TX.
3.4.6 Remote I/O module
Requirement: RS485 remote digital input / output module.
General: DIN Rail Mounted.
Input Modules: to suit required status indication.
Output Modules: to suit required remote operation.
Auxiliary Supply: 24V DC. (UPS Supply is acceptable)
Terminals: Screw type.
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3.5 Doors and covers
3.5.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards.
3.5.2 Door layout
Maximum width: 900 mm.
Minimum swing: At least 90º.
Door stays: Provide stays to outdoor assembly doors.
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time.
3.5.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors.
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted.
- For doors higher than 1000 mm: 3 hinges.
- For non-lift-off doors: Restraining devices and opposed hinges.
Door hardware: Provide the following:
- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder
- Captive, corrosion resistant knurled thumb screws as an alternative to handles
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door
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3.5.4 Covers
Maximum dimensions: Front - 900 mm wide and 1.5 m2 surface area. Rear – 900 mm wide and 2.0 m2 surface area.
Fixing: Fix to frames with at least 4 fixings, using corrosion-resistant acorn nuts with serrated washers.
Rest cover edges on the cubicle body or on mullions. Do not provide interlocked covers.
Handles: Provide corrosion-resistant D type handles.
3.5.5 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts.
3.5.6 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide and 1.2 m2 surface area.
3.6 Factory finishes
3.6.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 2 below.
Table 2 - Factory finishes schedule – MSBs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure - Indoor To match escutcheons
Escutcheons Non-Essential Light Grey RAL 7035
Essential Pebble Grey RAL 7032
Life Safety Signal Red RAL 3001
Doors To match escutcheons
Plinths Black Grey RAL 7021
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3.7 Busbars
3.7.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
3.7.2 Custom-built busbar construction
Material: Hard-drawn high-conductivity electrolytic tough pitched copper alloy bars, designation 110.
Temperature rise limits - active and neutral conductors:
- Maximum rated current temperature rise limits: 65 ± 1.5ºC by type test or calculation to IEC 60947-1 or AS 60890.
- Maximum short-circuit withstand current temperature rise limits: 160ºC by calculation to IEC 60865.
Cross section: Rectangular.
Remove sharp edges of rectangular busbar by filing the edge or use radiused edges.
Supports: Sufficient to withstand thermal and magnetic stresses due to maximum prospective fault currents.
Support material: Non-hygroscopic insulation capable of holding busbars at 105ºC.
3.7.3 Proprietary busbars
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
3.7.4 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
3.7.5 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases.
Neutral busbar: Black.
MEN link: Green-yellow and black.
Protective earth busbar: Green-yellow.
Restrictions: Do not provide adhesive type colour bands.
3.7.6 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
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PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
3.7.7 Tee-off busbars current rating
Outgoing functional units:
Individual: Equal to maximum frame size rating of the functional unit.
Multiple: Equal to the diversity factors of AS 61439.1, based on frame size rating.
3.7.8 MEN links
MEN links >10mm2 csa: Bolted removable busbar links stamped MEN LINK, located in the incoming compartment, between neutral and earth busbars.
Amend to suit the supply authority or project specific requirements.
3.7.9 Fault current limiters
General: Rate busbars connected to fault current limiters to 100% of the indicated fault current limiter circuit breaker frame size or fuse base rating.
3.7.10 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long.
3.7.11 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
3.7.12 Future extensions
General: Pre-drill the main circuit supply busbar for future extensions and extend busbar droppers into future functional unit locations.
3.7.13 Jointing
General: Use multiple bolted joints on all overlapping busbars with a minimum of two bolts per joint.
Type: High tensile steel bolts, washers and nuts, with lock nuts or spring washers. Do not use tapped holes and studs or the like for jointing current carrying sections.
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3.8 Neutral links and earth bars
3.8.1 Terminals
General: Provide terminals for future circuits
3.8.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables
Mounting: Mount neutral links on an insulated base
Control circuits: Provide separate neutral links and earth bars
Labels: Provide labels for neutral and earth terminals
Cables >10mm2: Provide bolts or studs
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009.
3.9 Cable entries
3.9.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
3.9.2 Cover and gland plates
Cover plates: Provide 150 mm maximum width cover plates butted together and covering the continuous cable entry slot
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic
- For MIMS cables and cable glands: 6 mm thick brass
Spare holes Provide gaskets to seal spare holes and cable entries.
3.10 Bus trunking system entry
3.10.1 General
General: Provide entry plates with close tolerance cut-out to accommodate busbars, fitted with a flange bolted and sealed to assembly enclosure to maintain assembly IP rating. Earth the busway enclosure to the assembly protective earth conductor. Fit busway flanges at assembly manufacturer’s premises and retain for transportation.
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3.11 Internal wiring
3.11.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars
3.11.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges.
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment.
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables and motor control circuits in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool.
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
- If recommended by device manufacturers, provide shielded wiring.
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
3.11.3 Cables > 6 mm²
Terminations:
- Tunnel terminals: Single cables
- Other connection points or terminals: ≤ 2 cables
Doors: Do not run cables to hinged doors or removable panels.
Supports:
- Spacing at enclosure: ≤ 200 mm from a termination
- Spacing generally: ≤ 400 mm
- Strength: Capable of withstanding forces exerted during fault conditions
Single core cables: ≥ 300A - do not provide ferrous type metal cable saddles.
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly.
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3.11.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit
Minimum size: 1.0mm2 with 32/0.2 stranding
3.11.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red
- B phase: White
- C phase: Blue
- Neutral: Black
- Earthing: Green-yellow
3.12 Assembly installation
3.12.1 Fixing
General: Before making inter-panel connections, fix assemblies and metering equipment enclosures into position, level and plumb
3.13 Assembly entries
3.13.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
Single core cables: >300A - Pass separately through non-ferrous gland plates. Do not use ferrous metal saddles
3.13.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained
3.13.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions
3.13.4 Bus trunking system entry
General: Provide entry plates with close tolerance cut-out to accommodate busbars, fitted with a flange bolted and sealed to assembly enclosure to maintain assembly IP rating. Earth the busway enclosure to the assembly protective earth conductor. Fit busway flanges at assembly manufacturer’s premises and retain for transportation.
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3.14 Marking and labelling
3.14.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains
- Emergency operating procedures
3.15 Controls and communications
3.15.1 General
General: Provision is to be made in every new Main Switchboard to connect to the APAM SCADA/EMCS network. All control circuits shall be powered from the nearest APAM UPS. Alternatively, local substation DC protection supplies can be used.
- Provide a segregated enclosure with separate hinged door/cover at least 600 mm x 600 mm in each MSB
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label
- Provide CAT 6 RJ45 data outlet in this enclosure
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems
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4. Main Distribution Switchboards
4.1 Scope
General: This section covers the requirements for Main Distribution Switchboards (MDBs).
4.2 Switchboard manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Nilsen
- DRC Switchboards
- LAI Switchboards
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
4.3 Switchboard requirements
General: The manufacture of the Distribution Switchboard(s) will comply with the following
requirements listed in Table 3 below.
GA: Refer to General Arrangement drawing, ref MELBAIR-UTL-AP-LEX-DR-ET-0035 &
MELBAIR-UTL-AP-LEX-DR-ET-0036 for typical details and arrangement
Table 3 - Schedule of distribution switchboard requirements – MDBs
Parameter Requirement
Type: Wall mounted assembly
Construction: 1.6mm zinc coated sheet steel, fully welded
IP Rating: IP 42 (indoor)
IP 56 (outdoor)
Fault Rating: Minimum 10kA for 0.2 second, unless stated otherwise on drawings.
Design fault rating shall be based on network analysis.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 3B
Temperature Rise: 30°C above ambient of 40°C
Metering: Check Metering - Digital multi-function meter to IEC 62053 with class 0.5 accuracy.
Remote communication with APAM EMCS network via Modbus gateway.
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Parameter Requirement
Switchgear: MCCBs: as indicated on the drawings
MCBs: as indicated on the drawings
No. of Poles Refer to drawings for minimum number of poles.
Spare Capacity: Minimum 20% spare circuit breakers fitted.
Equipped Spares shall be split equally between 100A and 200A CB’s.
Connection: Front connected
Neutral: Fully sized as Active Conductors
Cable Entry: Glanded cable entries through top / bottom of cubicle
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed to
LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with metering
facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Chrome plated lift off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
4.4 Doors and covers
4.4.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards.
4.4.2 Door layout
Maximum width: 900 mm.
Minimum swing: At least 90º.
Door stays: Provide stays to outdoor assembly doors.
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time.
4.4.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors.
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted.
- For doors higher than 1000 mm: 3 hinges.
Door hardware: Provide the following:
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- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly.
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder
- Captive, corrosion resistant knurled thumb screws as an alternative to handles
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door.
4.4.4 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts
4.4.5 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide and 1.2 m2 surface area.
4.5 Factory finishes
4.5.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 4.
Table 4 - Factory finishes schedule – MDBs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure - Indoor To match escutcheons
Escutcheons Non-Essential Light Grey RAL 7035
Essential Pebble Grey RAL 7032
Doors To match escutcheons
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4.6 Busbars
4.6.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
4.6.2 Busbar chassis
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
Integral busbar disconnection system to isolate unused outgoing poles from the mains supply via a slider selector switch.
4.6.3 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
4.6.4 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases
Neutral busbar: Black
Protective earth busbar: Green-yellow
Restrictions: Do not provide adhesive type colour bands
4.6.5 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
4.6.6 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long
4.6.7 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
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4.7 Neutral links and earth bars
4.7.1 Terminals
General: Provide terminals for future circuits.
4.7.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section.
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables.
Mounting: Mount neutral links on an insulated base.
Control circuits: Provide separate neutral links and earth bars.
Labels: Provide labels for neutral and earth terminals.
Cables >10mm2: Provide bolts or studs.
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009.
4.8 Cable entries
4.8.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
4.8.2 Gland plates
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection.
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic.
- For MIMS cables and cable glands: 6 mm thick brass.
4.9 Internal wiring
4.9.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars.
4.9.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air
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temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
- If recommended by device manufacturers, provide shielded wiring
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
4.9.3 Cables > 6 mm²
Terminations: Tunnel terminals: Single cables
Other connection points or terminals: ≤ 2 cables
Doors: Do not run cables to hinged doors or removable panels
Supports: Spacing at enclosure: ≤ 200 mm from a termination
Spacing generally: ≤ 400 mm
Strength: Capable of withstanding forces exerted during fault conditions
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly
4.9.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit.
Minimum size: 1.0mm2 with 32/0.2 stranding.
4.9.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red
- B phase: White
- C phase: Blue
- Neutral: Black
- Earthing: Green-yellow
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4.10 Assembly entries
4.10.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
4.10.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained.
4.10.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions.
4.11 Marking and labelling
4.11.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains
- Emergency operating procedures.
4.12 Controls and communications
4.12.1 General
General: Provision is to be made in every new Main Distribution Switchboard to connect to the APAM SCADA/EMCS network. All control circuits shall be powered from the nearest APAM UPS.
- Provide a segregated enclosure with separate hinged door/cover at least 600 mm x 600 mm in each MDB.
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label.
- Provide CAT 6 RJ45 data outlet in this enclosure.
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
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5. SDA switchboards
5.1 Scope
General: This section covers the requirements for Supply Distribution Authority Switchboards
(SDAs).
These switchboards may be part of either the “Essential” or the “Non-essential” electrical systems. The switchboard colour shall match the designated colour assigned to the service type.
5.2 Switchboard manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Nilsen
- DRC Switchboards
- LAI Switchboards
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
5.3 SDA board requirements
Purpose: Metered Tennant LV Supplies.
General: The manufacture of the Distribution Switchboard(s) will comply with the following
requirements listed in Table 5 below.
GA: Refer to General Arrangement drawing, ref MELBAIR-UTL-AP-LEX-DR-ET-0037 &
MELBAIR-UTL-AP-LEX-DR-ET-0038 for typical details and arrangement
Table 5 - Schedule of SDA board requirements
Parameter Requirement
Type: Wall mounted assembly
Construction: 1.6mm zinc coated sheet steel, fully welded
IP Rating: IP 42 (indoor)
Fault Rating: 10kA for 0.2 second, unless stated otherwise on drawings.
Design fault rating shall be based on network analysis.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 3B
Temperature Rise: 30°C above ambient of 40°C .
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Parameter Requirement
Metering: Revenue Metering - NMI Accredited digital multi-function meter to IEC 62053
with class 0.5 accuracy.
Remote communication with APAM EMCS network via Modbus gateway.
Remote communication with Revenue Smart Meter Platform.
Switchgear: MCCBs: as indicated on the drawings
MCBs: as indicated on the drawings
No. of Poles Type A – 18 poles.
Type B – 36 poles.
Spare Capacity: Minimum 20%.
Equipped Spares shall be split equally between 63A 3P and 80A 1P CBs.
Connection: Front connected
Neutral: Fully sized as Active Conductors
Cable Entry: Glanded cable entries through top / bottom of cubicle
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed
to LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with
metering facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Chrome plated lift off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
5.4 Doors and covers
5.4.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards
5.4.2 Door layout
Maximum width: 900 mm
Minimum swing: At least 120º
Door stays: Provide stays to outdoor assembly doors
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time
5.4.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
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- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors.
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted.
- For doors higher than 1000 mm: 3 hinges.
Door hardware: Provide the following:
- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly.
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder
- Captive, corrosion resistant knurled thumb screws as an alternative to handles
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly.
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door.
5.4.4 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts
5.4.5 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide and 1.2 m2 surface area.
5.5 Factory finishes
5.5.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 6.
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Table 6 - Factory finishes schedule – SDAs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure Non-Essential Light Grey RAL 7035
Escutcheons Non-Essential Light Grey RAL 7035
Enclosure Essential Pebble Grey RAL 7032
Escutcheons Essential Pebble Grey RAL 7032
Doors Non-Essential To match escutcheons
5.6 Busbars
5.6.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
5.6.2 Busbar chassis
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
Integral busbar disconnection system to isolate unused outgoing poles from the mains supply via a slider selector switch.
5.6.3 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
5.6.4 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases
Neutral busbar: Black
Protective earth busbar: Green-yellow.
Restrictions: Do not provide adhesive type colour bands
5.6.5 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
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5.6.6 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long.
5.6.7 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
5.7 Neutral links and earth bars
5.7.1 Terminals
General: Provide terminals for future circuits
5.7.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section.
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables
Mounting: Mount neutral links on an insulated base
Control circuits: Provide separate neutral links and earth bars
Labels: Provide labels for neutral and earth terminals
Cables >10mm2: Provide bolts or studs
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009.
5.8 Cable entries
5.8.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
5.8.2 Gland plates
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection.
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic
- For MIMS cables and cable glands: 6 mm thick brass
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5.9 Internal wiring
5.9.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars
5.9.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges.
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment.
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool.
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
- If recommended by device manufacturers, provide shielded wiring.
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
5.9.3 Cables > 6 mm²
Terminations: Tunnel terminals: Single cables
Other connection points or terminals: ≤ 2 cables
Doors: Do not run cables to hinged doors or removable panels
Supports: Spacing at enclosure: ≤200 mm from a termination
Spacing generally: ≤400 mm
Strength: Capable of withstanding forces exerted during fault conditions
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly.
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5.9.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit
Minimum size: 1.0mm2 with 32/0.2 stranding.
5.9.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red
- B phase: White
- C phase: Blue
- Neutral: Black
- Earthing: Green-yellow
5.10 Assembly entries
5.10.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
5.10.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained.
5.10.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions.
5.11 Marking and labelling
5.11.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains
- Emergency operating procedures
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5.12 Controls and communications
5.12.1 General
General: Provision is to be made in every SDA to connect to the APAM SCADA/EMCS network and Revenue Smart Meter Platform. All control circuits shall be powered from the nearest APAM UPS.
- Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in each SDA
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label
- Provide CAT 6 RJ45 data outlet in this enclosure
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
5.13 Metering
5.13.1 Revenue Metering
General: Provision is to be made in every SDA to connect to the APAM SCADA/EMCS network and Revenue Smart Meter Platform. All control circuits shall be powered from the nearest APAM UPS.
- Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in each SDA
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label
- Provide CAT 6 RJ45 data outlet in this enclosure
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
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6. Light & power distribution boards
6.1 Scope
General: This section covers the requirements for Light & Power Distribution Boards (DBs).
6.2 Distribution board manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Schneider Electric – Isobar Range,
- NHP – Concept Plus c/w GRIZZ-BAR Chassis,
- CBI Electric – Heinemann Advantage Range.
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
6.3 Switchboard requirements
General: The manufacture of the Distribution Switchboard(s) will comply with the following
requirements listed in Table 7 below.
Table 7 - Schedule of light & power distribution board requirements
Parameter Requirement
Type: Wall mounted assembly
Construction: 1.6mm zinc coated sheet steel, fully welded
IP Rating: IP 42 (indoor)
IP 66 (outdoor)
Main Switch: 160 Amp, 3 pole
Fault Rating: 25kA for 0.2 second, unless stated otherwise on drawings.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 3bih
Temperature Rise: 30°C above ambient of 40°C .
Metering: Energy Metering - Digital multi-function meter to IEC 62053 with class 0.5
accuracy.
Remote communication with APAM EMCS network via Modbus gateway.
Switchgear: MCCBs: as indicated on the drawings
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Parameter Requirement
MCBs: as indicated on the drawings
No. of Poles Refer to drawings for minimum number of poles.
Spare Capacity: Minimum 20% spare circuit breakers fitted.
Connection: Front connected
Neutral: Fully sized as Active Conductors
Cable Entry: Glanded cable entries through top / bottom of cubicle
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed
to LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with
metering facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Chrome plated lift off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
6.4 Doors and covers
6.4.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards.
6.4.2 Door layout
Maximum width: 900 mm.
Minimum swing: At least 90º.
Door stays: Provide stays to outdoor assembly doors.
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time.
6.4.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors.
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted.
- For doors higher than 1000 mm: 3 hinges.
Door hardware: Provide the following:
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- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly.
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder.
- Captive, corrosion resistant knurled thumb screws as an alternative to handles.
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly.
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door.
6.4.4 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts.
6.4.5 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide.
6.5 Factory finishes
6.5.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 8.
Table 8 - Factory finishes schedule – DBs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure - Indoor Non-Essential Light Grey RAL 7035
Essential Pebble Grey RAL 7032
Enclosure - Outdoor Deep Stone Y55
Escutcheons Non-Essential Light Grey RAL 7035
Essential Pebble Grey RAL 7032
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Mechanical Services Switchboards Signal Orange RAL 2010
Doors To match escutcheons
6.6 Busbars
6.6.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
6.6.2 Busbar chassis
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
Integral busbar disconnection system to isolate unused outgoing poles from the mains supply via a slider selector switch.
6.6.3 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
6.6.4 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases.
Neutral busbar: Black.
Protective earth busbar: Green-yellow.
Restrictions: Do not provide adhesive type colour bands.
6.6.5 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
6.6.6 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long.
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6.6.7 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
6.7 Neutral links and earth bars
6.7.1 Terminals
General: Provide terminals for future circuits.
6.7.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section.
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables.
Mounting: Mount neutral links on an insulated base.
Control circuits: Provide separate neutral links and earth bars.
Labels: Provide labels for neutral and earth terminals.
Cables >10mm2: Provide bolts or studs.
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009.
6.8 Cable entries
6.8.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
6.8.2 Gland plates
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection.
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic.
- For MIMS cables and cable glands: 6 mm thick brass.
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6.9 Internal wiring
6.9.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars.
6.9.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges.
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment.
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool.
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
- If recommended by device manufacturers, provide shielded wiring.
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
6.9.3 Cables > 6 mm²
Terminations: Tunnel terminals: Single cables.
Other connection points or terminals: ≤ 2 cables.
Doors: Do not run cables to hinged doors or removable panels.
Supports: Spacing at enclosure: ≤ 200 mm from a termination.
Spacing generally: ≤ 400 mm.
Strength: Capable of withstanding forces exerted during fault conditions.
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly.
6.9.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit.
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Minimum size: 1.0mm2 with 32/0.2 stranding.
6.9.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red.
- B phase: White.
- C phase: Blue.
- Neutral: Black.
- Earthing: Green-yellow.
6.10 Assembly entries
6.10.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
6.10.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained.
6.10.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions.
6.11 Marking and labelling
6.11.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains.
- Emergency operating procedures.
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6.12 Controls and communications
6.12.1 General
General: Provision is to be made in every DB to connect to the APAM SCADA network. All control circuits shall be powered from the nearest APAM UPS.
- Provide a segregated enclosure at least 250 mm x 250 mm in each DB rated 100 A or below.
- Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in each DB rated above 100 A.
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label.
- Provide CAT 6 RJ45 data outlet in this enclosure.
- Connect the CAT 6 data point to the nearest APAM SCADA patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
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7. Mechanical Services Switchboards
(MSSB’s)
7.1 Scope
General: This section covers the requirements for Mechanical Services Switchboards (MSSBs).
Tenant areas shall be designed so that all dedicated tenant services (MSSB’s; HVAC
plant including AHU’s; hydraulic plant and equipment; ventilation; refrigeration;
extraction; kitchen equipment) are supplied from Tenant switchboards located behind
the Tenant meter(s).
National Construction Code (NCC/BCA) Section J compliant metering must be provided.
7.2 MSSB board manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Decon
- Trivantage
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
7.3 Switchboard requirements
General: The manufacture of the Mechanical Services Switchboard(s) will comply with the
following requirements listed in Table 9 below.
All mechanical services shall be powered from dedicated MSSBs
Each switchboard shall comprise of a sheet metal enclosure containing the following
equipment:
A load break isolator that isolates all incoming supplies to the switchboard;
Means of isolating and protection (circuit breakers and overloads) for each
motor circuit;
Contactors or starters for each motor circuit, including the necessary
protection devices;
LED cluster pilot lights for run, fault and fire alarm, complete with lamp test
facilities;
“Auto-Off-Manual’ double pole switches for all motor start circuits; and
Power metering to all incoming supplies
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The switchboard doors shall be folded and braced to prevent flexing and distortion
Table 9 - Schedule of mechanical services switchboards requirements
Parameter Requirement
Type: Floor or Wall mounted assembly
Construction: 1.6mm zinc coated sheet steel, fully welded
IP Rating: IP 54 (indoor)
IP 66 (outdoor)
Main Switch: Amp rating to suit, 3 pole, fault make load break isolator.
Fault Rating: 25kA for 0.2 second, unless stated otherwise on drawings.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 2b for controls section,
Form 3bih for minor distribution power circuits
Form 3b or above for switchboards rated 800 A or above
Temperature Rise: 30°C above ambient of 40°C .
Metering: Energy Metering - Digital multi-function meter to IEC 62053 with class 0.5 accuracy.
Remote communication with APAM ECMS network via Modbus gateway.
Switchgear: MCCBs: as indicated on the drawings
MCBs: as indicated on the drawings
Switchgear shall be of the same Manufacture and coordinated with the upstream
electrical switchgear to ensure compatibility.
No. of Poles Refer to drawings for minimum number of poles.
Spare Capacity: Minimum 20% spare circuit breakers fitted.
Connection: Front connected
Neutral: Fully sized as Active Conductors
Cable Entry: Glanded cable entries through top / bottom of cubicle
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed to
LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with metering
facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Chrome plated lift off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
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7.4 Doors and covers
7.4.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards
7.4.2 Door layout
Maximum width: 900 mm
Minimum swing: At least 90º
Door stays: Provide stays to outdoor assembly doors
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time
7.4.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted
- For doors higher than 1000 mm: 3 hinges
Door hardware: Provide the following:
- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly.
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder.
- Captive, corrosion resistant knurled thumb screws as an alternative to handles.
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly.
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door.
7.4.4 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts.
7.4.5 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide
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corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide.
7.5 Factory finishes
7.5.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 10.
Table 10 - Factory finishes schedule – MSSBs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure - Indoor Non-Essential Signal Orange RAL 2010
Essential Signal Orange RAL 2010
Enclosure - Outdoor Deep Stone Y55
Escutcheons Non-Essential Signal Orange RAL 2010
Essential Signal Orange RAL 2010
Doors To match escutcheons
7.6 Busbars
7.6.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
7.6.2 Busbar chassis
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
Integral busbar disconnection system to isolate unused outgoing poles from the mains supply via a slider selector switch.
7.6.3 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
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7.6.4 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases
Neutral busbar: Black
Protective earth busbar: Green-yellow
Restrictions: Do not provide adhesive type colour bands
7.6.5 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
7.6.6 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long
7.6.7 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
7.7 Neutral links and earth bars
7.7.1 Terminals
General: Provide terminals for future circuits
7.7.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section.
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables
Mounting: Mount neutral links on an insulated base
Control circuits: Provide separate neutral links and earth bars
Labels: Provide labels for neutral and earth terminals
Cables >10mm2: Provide bolts or studs
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009
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7.8 Cable entries
7.8.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
7.8.2 Gland plates
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection.
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic.
- For MIMS cables and cable glands: 6 mm thick brass.
7.9 Internal wiring
7.9.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars.
7.9.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges.
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment.
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool.
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
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- If recommended by device manufacturers, provide shielded wiring.
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
7.9.3 Cables > 6 mm²
Terminations: Tunnel terminals: Single cables.
Other connection points or terminals: ≤ 2 cables.
Doors: Do not run cables to hinged doors or removable panels.
Supports: Spacing at enclosure: ≤ 200 mm from a termination.
Spacing generally: ≤ 400 mm.
Strength: Capable of withstanding forces exerted during fault conditions.
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly.
7.9.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit.
Minimum size: 1.0mm2 with 32/0.2 stranding.
7.9.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red.
- B phase: White.
- C phase: Blue.
- Neutral: Black.
- Earthing: Green-yellow.
7.10 Assembly entries
7.10.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
7.10.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained.
7.10.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions.
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7.11 Marking and labelling
7.11.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains.
- Emergency operating procedures.
7.12 Controls and communications
7.12.1 General
General: Provision is to be made in every MSSB to connect to the APAM SCADA/EMCS network. All control circuits shall be powered from the nearest APAM UPS.
- Provide a segregated enclosure at least 250 mm x 250 mm in each MSSB rated 100 A or below.
- Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in each MSSB rated above 100 A.
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the nearest UPS DB. Clearly label.
- Provide CAT 6 RJ45 data outlet in this enclosure.
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
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8. UPS power distribution boards
8.1 Scope
General: This section covers the requirements for Uninterruptible Power System Distribution
Boards (UPS DBs).
8.2 Distribution board manufacturer
General: Provide switchboards from the following approved list of manufacturers:
- Schneider Electric – Isobar Range,
- NHP – Concept Plus c/w GRIZZ-BAR Chassis,
- CBI Electric – Heinmann Advantage Range.
Alternatives: Contractors must submit a compliant tender using the approved manufacturers list
above. However, the Contractor may also submit for approval an alternative proposal
from an equally experienced manufacturer, which it considers of equal quality and
performance. The submission must contain all the information and details listed within
section 2.3 of this specification.
8.3 Switchboard requirements
General: The manufacture of the Distribution Switchboard(s) will comply with the following
requirements listed in Table 11 below.
Table 11 - Schedule of uninterruptible power distribution board requirements
Parameter Requirement
Type: Wall mounted assembly
Construction: 1.6mm zinc coated sheet steel, fully welded
IP Rating: IP 42 (indoor)
IP 66 (outdoor)
Main Switch: 160 Amp, 3 pole
Fault Rating: 25kA for 0.2 second, unless stated otherwise on drawings.
Type-Testing: Partially Type-Tested Assembly (PTTA)
Form of Construction: Form 3bih
Temperature Rise: 30°C above ambient of 40°C .
Metering: Energy Metering - Digital multi-function meter to IEC 62053 with class 0.5
accuracy.
Remote communication with APAM EMCS network via Modbus gateway.
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Parameter Requirement
Switchgear: MCCBs: as indicated on the drawings
MCBs: as indicated on the drawings
No. of Poles Refer to drawings for minimum number of poles.
Spare Capacity: Minimum 20% spare circuit breakers fitted.
Connection: Front connected
Neutral: Fully sized as Active Conductors
Cable Entry: Glanded cable entries through top / bottom of cubicle
Door Seals: Neoprene seals retained using metal framing.
Door Hardware: 3-point lockable outer doors fitted with lever type chrome plated handles keyed
to LV1.1.2 (sections without metering facilities) and LV1.1.3 (sections with
metering facilities). Internal escutcheons secured using ¼ turn catches.
Hinges Chrome plated lift off pintle hinges.
Equipment Layout: Provide outer blank doors, with internal hinged escutcheons.
Circuit breakers, meters and operable switchgear shall be visible and accessible
through the internal escutcheons.
8.4 Doors and covers
8.4.1 General
Requirement: Provide lockable doors with a circuit card holder unless enclosed in cupboards.
8.4.2 Door layout
Maximum width: 900 mm.
Minimum swing: At least 90º.
Door stays: Provide stays to outdoor assembly doors.
Adjacent doors: Space adjacent doors to allow both to open to 90º at the same time.
8.4.3 Door construction
Protection: Provide single right angle return on all sides and fit suitable resilient neoprene sealing to provide the documented IP rating and prevent damage to paintwork.
Hinges: Provide the following:
- Generally: Corrosion-resistant pintle hinges or integrally constructed hinges to support doors.
- For removable doors: Staggered pin lengths to achieve progressive engagement as doors are fitted.
- For doors higher than 1000 mm: 3 hinges.
Door hardware: Provide the following:
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- Corrosion resistant lever-type handles, operating a latching system with latching bar and guides strong enough to withstand explosive force resulting from fault conditions within the assembly.
- Dual, edge mounted, corrosion resistant T handles with provision for key locking cylinder.
- Captive, corrosion resistant knurled thumb screws as an alternative to handles.
Locking: Incorporate cylinder locks in the latching system. Key alike, 2 keys per assembly.
Mounted equipment: Protect or shroud door mounted equipment and terminals to prevent inadvertent contact with live terminals, wiring, or both.
Earthing: Maintain earth continuity to door mounted indicating or control equipment with multi-stranded, flexible earth wire, or braid of equal cross-sectional area, bonded to the door.
8.4.4 Escutcheons
General: For doors enclosing circuit breakers, provide escutcheon plates as barriers between operating mechanisms and live parts.
8.4.5 Escutcheon plates
General: Provide plates or removable covers with neat circuit breaker toggle cut-outs allowing interchangeability of 1, 2 and 3 pole circuit breakers. Provide corrosion-resistant lifting handles or knobs. Provide unused circuit breaker toggle cut-outs with blanking in-fill pole covers.
Maximum dimensions: 900 mm wide.
8.5 Factory finishes
8.5.1 General
Standard: To AS 2700.
Extent: Apply protective finish coatings to internal and external metal surfaces of assemblies including covers, except to stainless steel, galvanized, electroplated, or anodised surfaces and to ventilation mesh covers.
Finish coats: Thermoset powder coating to AS 4506 or two-pack liquid coating of AS/NZS 3750.13 primer and proprietary or epoxy acrylic full gloss spray finish as documented in the Table 8.
Table 12 - Factory finishes schedule – UPS DBs
Component Service Type Finish Colour – Internal & External Surfaces
Enclosure - Indoor Essential Pebble Grey RAL 7032
Enclosure - Outdoor Deep Stone Y55
Escutcheons Essential Pebble Grey RAL 7032
Doors To match escutcheons
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8.6 Busbars
8.6.1 General
General: Provide main circuit supply busbars within assemblies, extending from incoming supply terminals to the line side of protective equipment for outgoing functional units and for future functional units.
Standards: To AS/NZS 3000, IEC 60947-1, IEC 60865 and AS 60890.
8.6.2 Busbar chassis
Type: Multi-pole proprietary insulated busbar assemblies or busbar systems, verified for short circuit capacity and temperature rise-limits by type tests.
Integral busbar disconnection system to isolate unused outgoing poles from the mains supply via a slider selector switch.
8.6.3 Phase sequence
General: For main busbars and connections to switching devices, set-out phase sequence for phases A, B and C, from left-to-right, top-to-bottom and front-to-back when viewed from the front of the assembly.
8.6.4 Colour coding
General: Provide 25 mm minimum width colour bands permanently applied to busbars at 500 mm maximum intervals with at least one colour band for each busbar section within each compartment.
Active busbars: Red, white and blue respectively for the A, B and C phases.
Neutral busbar: Black.
Protective earth busbar: Green-yellow.
Restrictions: Do not provide adhesive type colour bands.
8.6.5 Current carrying capacity
Active conductors: Take into account thermal stresses due to short circuit current, assuming magnetic material enclosures located indoors in well-ventilated rooms and 90ºC final temperature.
Neutral conductors: Size to match incoming neutral conductor current carrying capacity.
PE conductors: Size for at least 50% of the rated short circuit withstand current for 100% of the time duration.
8.6.6 Busbar links
General: For current transformers, provide removable busbar links less than or equal to 450 mm long.
8.6.7 Cable connection flags
General: Provide and support busbar flags for equipment with main terminals too small for cable lugs. Provide flags sized to suit cable lug termination, with current rating of at least the maximum equipment frame size.
Phase isolation: Provide phase isolation or barriers between flags where the minimum clearance distances phase-to-phase and phase-to-earth are below the component terminal spacing.
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8.7 Neutral links and earth bars
8.7.1 Terminals
General: Provide terminals for future circuits.
8.7.2 Links
Assembly > 36 poles: Provide neutral links and earth bars at the top and bottom of the circuit breaker section.
Assembly ≤ 36 poles: Provide links and bars at the point of entry of incoming supply cables.
Mounting: Mount neutral links on an insulated base.
Control circuits: Provide separate neutral links and earth bars.
Labels: Provide labels for neutral and earth terminals.
Cables >10mm2: Provide bolts or studs.
Communications earth: Make provision for connection of communications systems earth at switchboard earth bar to AS/CA S009.
8.8 Cable entries
8.8.1 General
General: Provide cable entry facilities within assembly cable zones for incoming and outgoing power and control cabling. Provide sufficient clear space within each enclosure next to cable entries to allow incoming and outgoing cables and wiring to be neatly run and terminated, without unnecessary bunching or sharp bends.
8.8.2 Gland plates
Gland plates: Provide removable gland plates fitted with gaskets to maintain the degree of protection.
Materials: Conform to the following:
- Generally: 1.5 mm thick steel, 5 mm thick composite material or laminated phenolic.
- For MIMS cables and cable glands: 6 mm thick brass.
-
8.9 Internal wiring
8.9.1 Wiring
General: Cable type: 0.6/1 kV copper cables. Provide V-90HT insulation where directly connected to active and neutral busbars.
8.9.2 Cable interconnections
General: For the main circuit supply, provide cable interconnections as follows:
- ≥ 1.5mm2 internal cables, with minimum V-90HT insulation rating with stranded copper conductors rated to AS/NZS 3008.1.1. Provide cables with current ratings suitable for the internal assembly ambient air
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temperature and for temperature rise limits of equipment within the assembly.
- Run cables clear of busbars and metal edges.
- Provide cables capable of withstanding maximum thermal and magnetic stresses associated with relevant fault level and duration.
- Run cables neatly. Provide slotted trunking sized for future cables or tie at 150 mm maximum intervals with ties strong enough to withstand magnetic stresses created at the specified fault current. Do not provide adhesive supports.
- Provide for installation of wiring for future equipment without removal of existing equipment.
- Identify power and control cables at both ends with neat fitting ring type ferrules agreeing with record circuit diagrams. Mark to IEC 61082-1 series.
- Terminate control cables in tunnel terminals or, if necessary, provide suitable palm type lugs and correct crimp tool.
- For equipment mounted on hinged doors run cables on the hinge side to avoid restricting the door opening. Bundle cables with spiral wrap PVC and secure to door.
- If recommended by device manufacturers, provide shielded wiring.
Circuit breakers: If suitable proprietary multi-pole busbar assemblies are available to link adjacent circuit breakers, do not provide cable interconnections.
8.9.3 Cables > 6 mm²
Terminations: Tunnel terminals: Single cables.
Other connection points or terminals: ≤ 2 cables.
Doors: Do not run cables to hinged doors or removable panels.
Supports: Spacing at enclosure: ≤ 200 mm from a termination.
Spacing generally: ≤ 400 mm.
Strength: Capable of withstanding forces exerted during fault conditions.
Terminals marked: Terminate marked cables for connection to external controls in correspondingly marked terminals within the assembly.
8.9.4 Control and indication circuits
General: Provide conductors sized to suit the current carrying capacity of the particular circuit.
Minimum size: 1.0mm2 with 32/0.2 stranding.
8.9.5 Cable colours
General: Colour code wiring as follows:
- A phase: Red.
- B phase: White.
- C phase: Blue.
- Neutral: Black.
- Earthing: Green-yellow.
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8.10 Assembly entries
8.10.1 Cable entries
General: Neatly adapt one or more cable entry plates, if fitted, to accept incoming cable enclosure. Provide the minimum number of entry plates to leave spare capacity for future cable entries. Do not run cables into the top of weatherproof assemblies.
8.10.2 Cable enclosures
General: Continue cable enclosures to or into assemblies and fit cable entry plates so that the IP rating of the assembly and the fire rating of the cable are maintained.
8.10.3 Cable supports
General: Support or tie mains and submains cables within 200 mm of terminations. Provide cable supports suitable for stresses resulting from short circuit conditions.
8.11 Marking and labelling
8.11.1 General
General: Label the switchboard assembly in conformance with IEC 61439.1 including the following:
- Size and type of all incoming and outgoing mains and submains.
- Emergency operating procedures.
8.12 Controls and communications
8.12.1 General
General: Provision is to be made in every UPS DB to connect to the APAM SCADA/EMCS network. All control circuits shall be powered from the UPS.
- Provide a segregated enclosure at least 250 mm x 250 mm in each DB rated 100 A or below.
- Provide a segregated enclosure with separate hinged door/cover at least 400 mm x 400 mm in each DB rated above 100 A.
- Provide a UPS power point in each of these enclosures terminating in a single phase 16 A MCB.
- Connect the UPS power point to a dedicated circuit in the UPS DB. Clearly label.
- Provide CAT 6 RJ45 data outlet in this enclosure.
- Connect the CAT 6 data point to the nearest APAM SCADA/EMCS patch panel using CAT 6 structured cabling. Clearly label.
Metering: Metering shall be provided in accordance with MAS-ELC-001 Design Standard LV Systems.
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9. Switchboard components
9.1 Switch-Isolator / Tier Isolator
9.1.1 General
Standard: To AS 60947.1.
Poles: 3 and 4 pole.
Operation: Independent manual operation including positive ON/OFF indicator.
Shrouding: Effective over range of switch positions.
Short-time withstand current: To AS 60947.1 clause 4.3.5 and the manufacturer’s recommendation to meet the current conditions applying.
Rated Making capacity: To AS 60947.1 clause 4.3.5 and the manufacturer’s recommendation to meet the current conditions applying.
Rated Breaking capacity: To AS 60947.1 clause 4.3.5 and the manufacturer’s recommendation to meet the current conditions applying.
Auxiliary Contacts: 3No. (ON/OFF indication, Early Make, Early Break).
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric;
ABB;
Terasaki.
9.2 Fuse-switch units
9.2.1 General
Operation: Provide an extendable operating handle.
Fuse links: Isolate when switch contacts are open. Provide 3 phase sets of high rupturing capacity (HRC) fuse links.
9.3 Auto-transfer switches
9.3.1 General
Standard: To AS 60947.1.
Type: 3 pole automatic type with supervisory circuits which initiate and restore the changeover transfer operation.
Load side connections: Segregate from incoming side.
Classification: To AS/NZS 3947.6.1 clause 3:
- Contactors: PC.
- Circuits: CB.
Utilization category: To AS 60947.1.
Interlocks: Provide electrical and mechanical interlocks. If circuit breaker is used, provide for isolation of each circuit breaker.
Manufacturer: Provide components from the following approved list of
manufacturers:
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Schneider Electric;
ABB;
Terasaki.
9.4 Moulded case and miniature circuit breakers
9.4.1 General
Moulded case breakers: To AS 60947.1 and AS 60947.2.
Miniature circuit breakers: Interrupting capacity classification to AS/NZS 3111.
- For general building services: Type C.
- For motor protection: Type D.
Operation: Independent manual operation including positive ON/OFF indicator.
Trip type: Conform to the following:
- Moulded case breakers: Adjustable thermal, fixed magnetic.
- Miniature circuit breakers: Fixed thermal and fixed magnetic.
Isolation facility: Required.
Mounting: Mount circuit breakers so that the ON/OFF and current rating indications are clearly visible with covers or escutcheons in position. Align operating toggles of each circuit breaker in the same plane.
Utilisation category: Moulded case breakers:
- Final subcircuits category: Category A.
- Mains and submains: Category B.
Trip settings: Set as documented, seal, and label.
Interchangeable trip units: Connect trip units so that trip units are not live when circuit breaker contacts are open.
Current limiting circuit breakers: Select breaker frame sizes from one manufacturer’s tested range of breakers to give cascade and discrimination protection within the switchboard and downstream switchboards as required.
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric – NSX Range,
ABB – SACE Range,
Terasaki – TemBreak 2 Range.
9.5 Residual Current Operated Circuit Breakers (RCBO)
9.5.1 General
Standard: To AS/NZS 3190.
Integral non-overload protection type: To AS/NZS 61008.1.
Integral overload protection type: To AS/NZS 61009.1.
Modular type: To AS 60947.2.
Type: Type II.
Default tripping current: 30mA.
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Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric – iC60 Range,
ABB – S200 Range,
Terasaki – Safe-T Range.
9.6 Air circuit breakers
9.6.1 General
Standard: To AS 60947.1 and AS 60947.2.
Type: Open construction, withdrawable 3 pole, front connected.
Utilisation category: Category B.
Closing operation: Provide independent manual / automatic motor operation with trip free closing mechanisms and positive mechanically operated ON and OFF indication.
Opening operation: Provide independent manual / remote operated release for opening.
Auxiliary switch contacts: Provide contacts with minimum rated operational current of 6 A at 240 V, 50 Hz. Provide at least one spare normally-open and one spare normally-closed contacts. Provide shunt trip release coil circuits with an early-make/late-break series connected auxiliary contact.
Protection system: Provide a fully adjustable solid state protection system integral to the circuit breaker and incorporating a solid state protection relay.
Locking: Provide for locking of circuit breakers in either the open or closed position.
Operating mechanism charging: Motor and manual.
Electrical interlock: Control circuitry of functional units with normally-opened and normally-closed auxiliary contacts.
Mechanical Interlock: Provide cable or bar interlocks.
Interlock keys: Provide captive type coded key with squared face and alphabetical or numerical coded operating face to operate the electrical and mechanical interlocks as required.
Door interlock: Except for compartment doors that serve only as covers, provide interlocks to prevent compartment doors being open if the circuit breakers are closed.
Communications ACB to be equipped with communications port for connection to EMCS/SCADA system.
Abnormal operations: Provide circuit breakers which preclude the following operations:
- Slow closing or opening of contacts.
- Manual independent hand closure, if springs fail.
- Release of charged springs while contacts are closed.
Maintenance: Provide for slow closing of the circuit breaker mechanism during disconnected maintenance.
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric – Masterpact NW/MTZ Range,
ABB – SACE Emax Range,
Terasaki – TemBreak 2 Range.
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9.6.2 Withdrawable type
Mounting: Mount circuit breaker on a withdrawable carriage for racking in or withdrawing, and for positively fixing the unit into any of the 3 following positions:
- Connected.
- Test/isolated.
- Disconnected.
Auxiliary contacts: Provide contacts which are disconnected in the isolated position and connected in the test position.
Interlocking: Provide interlocking which prevents the circuit breaker being racked in or withdrawn unless it is in a tripped condition and prevents the circuit breaker being closed unless located in either the connected or test/isolated position. Provide stored energy devices which are automatically discharged by any racking operation.
Shutters: Provide automatic shutters, which can be locked, covering busbar and incoming/outgoing circuit connections and labelled BUSBARS and CIRCUIT respectively.
Earthing: Provide earthing connection between withdrawable carriage and assembly earth busbar which makes before, and breaks after, other contacts on the circuit breaker carriage.
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric – Masterpact NW/MTZ Range,
ABB – SACE Emax Range,
Terasaki – TemBreak 2 Range.
9.7 Fuses with enclosed fuse links
9.7.1 General
Standards: To AS 60269.1, AS 60269.2.0 and AS 60269.2.1.
Fuses with fuse-links for the protection of semiconductor devices:
To AS 60269.4.0.
Fuses with fuse-links used as fault current limiters:
Coordinate fuse type and rating with the protection switchgear manufacturer’s recommendation if used downstream of the fault current limiters. Provide labels adjacent to the fuse holder stating FAULT CURRENT LIMITER and fuse size.
Fuse links: Enclosed, high rupturing capacity type mounted in a fuse carrier.
Breaking range and utilisation category:
- Distribution/general purpose: gG.
- Motors: gM.
Fuse-holders: Mount fuse-holders so that fuse carriers may be withdrawn directly towards the operator and away from live parts. Provide fixed insulation which shrouds live metal when the fuse carrier is withdrawn.
Barriers: Provide barriers on both sides of each fuse link, preventing inadvertent electrical contact between phases by the insertion of screwdriver.
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Spare fuse links: Provide 3 spare fuse links for each rating of fuse link on each assembly. Mount spares on clips within the spares cabinet.
Spare fuse holder carriers: Provide 3 spare fuse holder carriers for each size of fuse holder carrier on each assembly. Mount spares on clips within the spares cabinet.
Busbar mounted fuse holders: Provide fuse carriers with retaining clips, minimum fuse holder 32 A.
9.8 Current transformers (protection)
9.8.1 General
Standard: To AS 60044.1.
Type: Cast resin encapsulated window type with busbar clamping devices.
Rated short time current: At least the short time current equivalent to the assembly fault level.
Rated short-time: At least the maximum time setting of the related protective relay. Minimum 1s.
Rated primary current: Equal to assigned current rating of the associated functional unit or as required by Manufacturer.
Rated secondary current: 5A. Connect star point to earth.
Interposing transformers: Provide to the protective relay manufacturer’s recommendations.
Characteristics: Conform to the protective relay manufacturer’s recommendations.
Test links: Provide test terminals and current transformer secondary shorting links in accessible positions within instrument panels. Provide a set of DIN-type rail mounted test links, consisting of screw clamped slide links and earth links, for each current transformer group.
Installation: Install transformers to permit easy removal.
Removable links: Provide removable links of minimum lengths for transformers fitted on busbar systems.
Markings: Mount transformers in the assembly enclosure, so that polarity markings and nameplate details are readily viewed right side up without removing the transformers.
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric,
ABB,
Crompton.
9.9 Surge Protection Devices (SPD)
9.9.1 General
Standard: To IEC 61643-11 and IEC 61643-12.
Installation: To AS/NZS 3000 Appendix F.
Manufacturer: Provide components from the following approved list of
manufacturers:
Erico,
Clipsal,
NHP.
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9.9.2 Primary protection
General: Provide shunt connected metal oxide varistor based SPDs between each phase and neutral at assembly incoming supply terminals, on the load side of incoming functional units.
Type I SPD
Surge Rating: Imax ≥ 150 kA per phase to neutral.
Surge Rating: Imax ≥ 100 kA neutral to earth if remote from the MEN earthing system.
Residual Voltage: Up < 800 V @ 3 kA.
Visual indicator: Provide visual indication of SPD status and life visible from the switchboard front panel.
Alarm contacts: Provide one set of normally closed dry contacts indicating status.
Enclosure and installation: House SPD in a metal enclosure and protected with a suitable rated circuit breaker or 63A HRC fuse.
Type II SPD
Surge Rating: Imax ≥ 100 kA per phase to neutral.
Surge Rating: Imax ≥ 100 kA neutral to earth if remote from the MEN earthing system.
Nominal discharge current: 40 kA (8/20µs)
Residual Voltage: Up < 800 V @ 3 kA.
Visual indicator: Provide visual indication of SPD status and life visible from the switchboard front panel.
Alarm contacts: Provide one set of normally closed dry contacts indicating status.
Enclosure and installation: House SPD in a metal enclosure and protected with a suitable rated circuit breaker or 63A HRC fuse.
9.9.3 Secondary protection
General: Provide shunt connected metal oxide varistor based SPDs between each phase and neutral and a gas discharge tube between neutral and earth at assembly incoming supply terminals, on the load side of incoming functional units and upstream of RCD devices.
Type III SPD
Surge Rating: Imax ≥ 50 kA per phase to neutral.
Surge Rating: Imax ≥ 20 kA neutral to earth.
Residual Voltage: Up < 800 V @ 3 kA.
Visual indicator: Provide visual indication of SPD status and life.
Alarm contacts: Provide one set of normally closed dry contacts indicating status.
Enclosure and installation: House SPD in a metal enclosure and protected with a suitable rated circuit breaker or 32A HRC fuse. Connecting lead lengths should not exceed 300 mm.
9.9.4 Combined primary and secondary protection
General: Provide series connected surge filter comprising metal oxide varistor or triggered spark gap based primary SPDs, a low pass LC filter and secondary metal oxide varistor based SPDs.
Surge Rating: Imax ≥ 100 kA per phase to neutral primary protection.
Surge Rating: Imax ≥ 100 kA neutral to earth if remote from the MEN earthing system.
Residual Voltage: Up < 600 V @ 20 kA.
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Visual indicator: Provide visual indication of SPD status and life.
Alarm contacts: Provide one set of normally closed dry contacts indicating status.
Enclosure and installation: House SPD in a metal enclosure and protected with a suitable rated circuit breaker equal to or less than the load current rating of the SPD.
9.10 Current transformers (metering)
9.10.1 Standard
Measurement current transformers: To AS 60044.1.
9.10.2 Test links
General: Provide test links for connection of calibration instruments and meters and for shorting of current transformer secondaries.
Energy meters, maximum demand meters, ammeters and protection relays: Provide with rail-mounted links consisting of screw-clamped slide links and an earth link.
9.10.3 Test studs
General: For energy and demand meters provide rail-mounted potential test studs or plug connections next to associated current transformer links. Provide at least one set of test studs for each compartment.
9.10.4 Accuracy classification
Energy measurements: Class 0.5.
Indicating instruments: Class 3.
9.10.5 Ratings
Rated short time current: At least the short time withstand current equivalent of the circuit in which the transformer is installed.
Rated primary current: At least equal to the current rating of the functional unit.
Secondary windings: Rated at 5 A, burden of 0.4 Ω (10 VA) with star point earthed.
9.10.6 Type
General: If practicable, cast resin encapsulated window-type with busbar clamping devices. Otherwise wound-primary type with mounting feet.
9.10.7 Installation
General: Install transformers to permit easy removal.
Removable links: Provide removable links of minimum length for transformers fitted on busbar systems.
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9.11 Revenue metering
9.11.1 General
Standard: Electronic: To AS 62053.22. NEM Compliant
Measurement: Class 0.5.
3-phase metering: Polyphase meters suitable for balanced 3 phase, 4 wire loads.
1 or 2 phase metering: Single phase meters.
Current rating: To suit load and overload conditions. Provide meters with current transformers suitable to 5 A secondary.
Display: LCD, Alpha-numeric display, multi-line.
Register: Provide a direct reading register of the large figure type. Mark on the scale the metering transformer ratios and the multiplying factor applied to the meter constant.
Covers: Seal main covers.
Communications: MODBUS, RS-232, RS-485, Optical
Manufacture: EDMI Atlas Series Mk7 and Mk10E or Approved by APAM Metering
Team.
9.12 Check metering
9.12.1 General
Standard: Electronic: To AS 62053.22
Measurement: Class 0.5.
3-phase metering: Polyphase meters suitable for balanced 3 phase, 4 wire loads.
1 or 2 phase metering: Single phase meters.
Current rating: To suit load and overload conditions. Provide meters with current transformers suitable to 5 A secondary.
Display: LCD, Alpha-numeric display, multi-line.
Register: Provide a direct reading register of the large figure type. Mark on the scale the metering transformer ratios and the multiplying factor applied to the meter constant.
Covers: Seal main covers.
Communications: MODBUS, RS-232, RS-485, Optical
Manufacturer: Provide components from the following approved list of
manufacturers:
Schneider Electric;
ABB;
Terasaki.
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9.13 Electrical indicating measuring meters
9.13.1 General
Standard: To the IEC 62053
Accuracy: Conform to the following:
- Indicating Instruments and accessories: ≤ Class 1.5.
- Thermal maximum demand indicators: Class 3.
- Power factor meters, phase angle meters and synchroscopes: 2 electrical degrees maximum error.
- Transducers: Class 0.5.
Mounting: Flush mount.
Meter size:
- Minimum: 96 mm square bezel type.
- If located on Form 3 and Form 4 motor starter enclosures: 76mm square bezel type.
Labels: If associated exclusively with one phase, label meters RED, WHITE, or BLUE as applicable.
Meter potential protection: Group together behind associated meter cover or hinged door, preferably next to current transformer test links.
Accessories: Mount next to associated instruments, inside cabinets.
Transducers: If necessary for transducer operation, provide auxiliary supply. Connect outputs to dedicated rail-mounted isolating type terminals.
9.13.2 Ammeters and voltmeters
Standard: To IEC 60051-2.
Ammeters: Conform to the following:
- Type: Moving iron type oil dampened for motor starter circuits, 90º.
- Over-scale: For ammeters subject to motor starting currents, over-scale to at least 5 x full load current.
- Selector switches: 4-position type with positions designated R/W/B/OFF. Mount under or beside relevant ammeters.
Voltmeters: Conform to the following:
- Type: Moving iron, 90º.
- Specify type e.g. direct connected, or VT connected; range, transfer switch.
- Selector switches: 7-position voltage transfer type for measurement of phase-to-phase and phase-to-neutral voltages with off. Mount under or next to relevant voltmeters.
9.13.3 Maximum demand indicators
General: Provide a meter in each phase with 15 minute response time. Provide for sealing the reset mechanism. Provide a combination 3-point indicator consisting of an instantaneous red ammeter pointer, a red maximum demand slave pointer with external reset facility, and a white maximum demand pointer.
Instantaneous type: Combined type with bi-metal maximum demand ammeter element and moving iron instantaneous ammeter element.
Thermal type: Combined type with bi-metal maximum demand ammeter element.
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9.13.4 Wattmeters and varmeters
Standard: To IEC 60051-3.
General: Suitable for balanced 3 phase, 4 wire loads. Connect to measurement transducers.
9.13.5 Frequency meters
Standard: To IEC 60051-4.
Type: Either an analogue type, or vibrating reed type with 7 reeds.
Analogue type: Graduated in 0.1 Hz increments.
Scales:
- Analogue: Graduated 45/65 Hz.
- Vibrating reed: Horizontal reed bar graduated 47/53 Hz.
9.13.6 Synchroscopes
Standard: To IEC 60051-5.
General: Continuously rated, rotating vane type movement, with spring loaded bearings and silicone fluid dampening, positive and negative arrows, black pointer and 12 o’clock marking.
Scales: 360.
9.13.7 Phase angle meters
Standard: To IEC 60051-5.
General: Provide for 3 phase, 4 wire balanced loads.
Scales: 0.5 leading to 0.5 lagging.
9.13.8 Hours-run meters
General: 6 figure (minimum), horizontal linear digits dial with last digit read-out in 0.1 hour increments.
9.14 Contactors
9.14.1 General
Standard: To AS 60947.4.1.
Type: Enclosed, block type, air break, electro-magnetic.
Poles: 3.
Rated operational current: The greater of:
- Full load current of the load controlled.
- 16 A.
Mechanical durability: 10 million cycles to AS 60947.4.1.
Electric durability: ≥ 1 million operations at AC-22 to AS 60947.4.1.
Mounting: Mount with sufficient clearance to allow full access for maintenance, removal and replacement of coils and contacts, without the need to disconnect wiring or remove other equipment.
Auxiliary contacts: Provide auxiliary contacts with at least one normally-open and one normally-closed separate contacts with rating of 6 A at 230 V a.c., utilisation category: AC-1.
Slave relay: If the number of auxiliary contacts exceeds the number which can be accommodated, provide separate slave relays.
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9.15 Control devices and switching elements
9.15.1 Standards
General: To AS 60947.1 and AS 60947.5.1.
Switching elements:
- Electrical emergency stop device with mechanical latching function: To AS 60947.5.4.
- Electromechanical control circuit devices: To AS 60947.5.1.
- Proximity switches: To AS 60947.5.2.
9.15.2 Rotary switches
General: Cam operated type with switch positions arranged with displacement of 60º.
Off position: Locate at the 12 o’clock position. Test positions must spring return to off position.
Rated operational current: At least 6 A at 230 V a.c.
Escutcheon plates: Provide rectangular plates securely fixed to the assembly panel. Identify switch position and function.
9.15.3 Time switches
Type: 7 day fully programmable with holiday override function.
Daylight saving switch: Required.
Mains failure operation: 100 hour minimum operating capacity.
Contact rating: ≥ 16 A at 230 V a.c. resistive load.
Construction: Provide readily accessible means of adjustment. Provide operational settings which are clearly visible when switch cover is fitted.
Dial: Digital with hour and minute display.
Override switch (manual): Required.
9.15.4 Control relays
Standard: To AS 60947.5.1.
Operation: Suitable for continuous operation. Provide relays selected in conformance with the Control relay selection table.
Construction: Plug-in types. Receptacle bases with captive clips which can be operated without using tools.
Contact elements: Electrically separate, double break with silver alloy, non-welding contacts.
Configuration: For standard relays, provide assemblies with ≥ 2 sets of contacts and expandable to 8 sets of contacts in the same assembly. Provide at least one normally-open and one normally-closed contact.
Plug-in types: If required provide the following:
- Receptacle bases with captive clips which can be operated without using tools.
- Changeover type contacts to allow either normally-open or one normally-closed configuration.
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Table 13 - Control relay selection
Relay
type
Minimum
mechanical life
(million operations)
Base Minimum
contact rating
Inter-
changeable
Minimum number of
contact elements
1 5 Plug-in 1.25 IL Yes 2
2 10 Plug-in 5 A at 240 V Yes 2
3 10 Fixed mounting 5 A at 240 V Yes 4
Time delay relays
Adjustable range: Adjustable over the full timing range with timing repeatability within ± 12.5% of nominal setting.
Electronic relays: Incorporate light emitting diodes indicating energisation states of relays.
9.15.5 Synchronous relays
General: Provide synchronous motor drive type relay fitted with anti-stalling device which protects gearing during normal operation.
9.15.6 Phase failure relays
General: Provide separate solid-state phase failure relays conforming to the following:
- Detect less than 85% of normal voltage.
- Detect single phase failure.
- Detect reverse phase sequence after an appropriate time delay.
- Automatic reset on detection of normal power supply.
Sensing circuit: To reject induced voltage spikes and disturbances with frequencies other than 50 Hz.
Back-up protection: Provide high rupturing capacity fuses to each phase.
9.15.7 Push-buttons
Type: Oil-tight, minimum 22 mm diameter, or 22 x 22 mm.
Rated operational current: At least 4 A at 240 V a.c.
Emergency stop devices with mechanical latching: To AS/NZS 60947.
Marking: Identify functions of each push-button. For latched STOP or EMERGENCY STOP push-buttons, provide label with instructions for releasing latches.
9.16 Semiconductor controllers and contactors
9.16.1 General
General: Provide semiconductor controllers and contactors rated for the characteristics of the controlled load.
Standard: To AS/NZS 3947.4.2.
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9.17 Programmable Logic Controllers (PLC)
9.17.1 General
General: Provide complete programmable logic controllers including central processing unit, input/output modules and mounting hardware, as follows:
- Modular in construction and of the same manufacture, with interchangeable peripherals and software.
- Provided with an integral power supply of sufficient capacity to satisfy the requirements of the central processing unit and input/output module combinations which can be located within the mounting hardware.
- Designed and constructed to operate in electrically noisy environments.
- Located in the low voltage control section of the associated functional unit.
Manufacturer: Provide components from the following approved list of
manufacturers:
Siemens,
Schneider Electric,
Rockwell.
9.17.2 Central processing units
General: Provide the following:
- Separate run, monitor and program functions.
- Operating system: Stored in non-volatile memory.
- Programmed software: Stored so that loss of power to the unit for a period up to 1 year will not cause corruption of data and will allow automatic restarting and correct operation immediately on power restoration.
Inputs and outputs (minimum):
- External inputs: 24.
- External outputs: 16.
- Internal relays: 128.
9.17.3 Input/output modules
Status: Clearly identified and indicated by a light emitting diode.
Diodes: Not obscured by assembly wiring.
Analog input: 4 to 20 mA or 0 to 10 V d.c., opto-isolated.
Analog output: 4 to 20 mA or 0 to 10 V d.c., into a burden of ≥ 600 Ω.
Digital input: 24 V d.c., opto-isolated.
Digital output: Volt-free relay contacts or opto-isolated solid state switches for switching an output load of at least 2 A at 24 V a.c. or d.c.
9.17.4 Programmer
Operation: Using ladder logic, allowing for editing without the need to re-enter the whole program. Include test and monitoring functions which facilitate testing, running and debugging of software and provide for input/output number check.
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Hand-held programmers: Provide moulded connectors and 2 m connection cable.
9.18 Controller device interfaces
9.18.1 General
General: Provide interfaces between equipment and control systems including the following:
- Programmable logic controllers.
- Metering systems (ECMS).
- Building management systems.
Standard: To IEC 62026.1, IEC 62026.2, IEC 62026.3 and IEC 62026.5.
Actuator sensor interface: To IEC 62026.2. Provide control system components with an actuator sensor interface. The actuator sensor interface may be integrated into field devices, or be used in separate modules.
BACnet: Provide control system components with a BACnet connection based controller-device interface, suitable for use on a Controller Area Network to IEC 62026.3.
Smart distributed system (SDS): Provide control system components with a SDS controller-device interface, suitable for use on a Controller Area Network to IEC 62026.5.
9.19 Indicator lights
9.19.1 LED indicators
Requirement for light units: Integrated LEDs.
Voltage range: 12VAC and 12VDC to 30VDC.
Body type: Plastic.
Rating: IP66.
Lens type: Plastic.
Terminals: Screw fixing.
9.20 Indicating counters
9.20.1 General
General: Provide the following:
- At least 6 digits.
- Digits at least 3.5 mm high.
- Continuous duty rated.
- Non-reset type.
- 500 V surge diverters.
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9.21 Alarm annunciators
9.21.1 General
General: Provide the following:
- Labelled annunciator illuminated windows, to indicate status and alarm conditions.
- Lamp test acknowledge-mute and reset individual push-buttons.
- Audible alarm and associated logic circuitry.
9.21.2 Mode of operation
General: Provide the following functions:
- Fault conditions: To initiate flashing of appropriate annunciator lamps and sounding of audible alarms.
- Operation of acknowledge and mute buttons: To silence audible alarms and change annunciator lamps to the steady state on condition.
- Window: To extinguish only when fault condition has been cleared and alarm reset push-button has been activated.
- Subsequent alarms on other inputs: To reactivate the audible alarm and flash the appropriate annunciator lamp.
- Resetting: After correction of the fault condition, provide on-site choice of either automatic resetting or manual resetting at the annunciator panel.
9.21.3 Type
General: Extra-low voltage, solid state, flush mounted, window type.
9.21.4 Lamps
General: Provide annunciators with 2 extra-low voltage lamps per window.
Rated voltage of lamps: 105% of the annunciator system voltage.
Replacing: Changeable from front of panel without affecting condition of annunciator.
Vibration: Provide lamps which do not disconnect due to vibration.
9.21.5 Extra-low voltage power supply
General: Provide an extra-low voltage power supply for the alarm annunciator.
9.21.6 Windows
Nominal size: 15 x 35 mm.
Engraving: Filled in black.
- Background colours: White for status monitoring, red for alarms and shutdown functions.
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9.22 Audible alarm devices
9.22.1 Sound level
General: Not less than the greater of the following:
- 65 dB(A) at 1 m.
- 15 dB(A) above ambient sound levels at any location in designated areas.
9.23 Extra-low voltage transformers
9.23.1 General
General: Provide the following:
- Centre tap on secondary winding.
- Primary and secondary windings wired out on opposite sides of transformer case.
- Primary and secondary windings separated by means of an earthed screen wired out to an insulated terminal.
- Transformer rating greater than or equal to 125% of maximum output load, taking account of degree of ventilation and ambient temperature within assembly, and supplied load.
9.24 Batteries and chargers
9.24.1 Standards
Valve regulated sealed lead-acid batteries: To AS/NZS 4029.2.
Vented nickel-cadmium batteries: To AS 3731.1.
Chargers: To AS 4044 Type 2.
9.24.2 General
General: Provide a dual (double charger, double battery banks, double DC distribution) 24 V DC battery and charger system for circuit breaker tripping, closing and automatic changeover switch operation. Locate within the switchroom or switchboard assembly.
9.24.3 Circuit breaker operation
General: Provide a DC supply for circuit breaker operation from battery system and charger.
9.24.4 Performance
General: Capable of 10 consecutive air-circuit breaker or moulded case circuit breaker operations for the designated quantity of circuit breakers. Each operation consists of open-close of main contacts for 0.5 s duration, with 1 s intervals between operations, and minimum discharge current of 4 A, with batteries in 50% discharge condition. Maintain a minimum terminal voltage of 80% of rated voltage at the completion of the 10 operations.
System voltage: 110 V DC for Main Substations
24 V DC for Distribution Substations
(UNCONTROLLED WHEN PRINTED)
78 TECHNICAL SPECIFICATION
13/12/2019 LV SWITCHBOARDS
9.24.5 Battery chargers
Type: Free standing, floor mounted, ventilated cabinet type with separate dual charger and double battery subsections.
Degree of protection: IP42.
Tapping: Provide tappings on the transformer to permit adjustment over a range of 95% to 105% of secondary winding voltage on open circuit.
Circuitry: Solid state, micro-processor type, constant voltage, fully automatic, incorporating a smoothing network to give an output wave form at least as smooth as that of a 3-phase bridge system, and automatic boost and float charge functions to ensure maximum battery life and rated performance. Provide facilities for manual boost and test.
Maximum design transient: 70% of the component manufacturer’s peak inverse ratings.
Instruments, controls & indicators: Group for ease of operation. Provide analogue or digital instruments for the following:
- Charger output current.
- System voltage.
- Load current.
a.c. input protection: Miniature circuit breakers. Protect outgoing tripping supply with a 2 pole d.c. miniature circuit breaker.
Alarm indication: Provide alarm indication to monitor the following:
- a.c. supply
- DC Supply
- Boost charge on.
- Charge fail.
- Low battery voltage.
- High battery voltage.
- Low electrolyte for vented cells.
- Earth fault, secondary side.
9.24.6 Safety signs and labels
Standard: To AS 2676.1.
Safety signs: Provide cautionary, regulatory and emergency safety signs to charger enclosure and switchroom.
9.25 Anti-condensation heaters
9.25.1 General
Rating: Provide heaters rated at not less than 20 W/m2 of total external area including top of weatherproof enclosure.
Type: Black heat type with surface temperature less than or equal to 50°C, mechanically protected and thermostatically controlled.
(UNCONTROLLED WHEN PRINTED)
79 TECHNICAL SPECIFICATION
13/12/2019 LV SWITCHBOARDS
9.26 Spares cabinet
9.26.1 General
General: Provide a spares cabinet with main name plate, labelled shelves and lockable door. Size for storing racking handles, special tools, spare lamps, spare fuse links and other equipment necessary for satisfactory assembly operation.
Location: Either of the following:
- Incorporated into assembly enclosure.
- Wall mounted in main switchroom.
Finish: To match switchboard assembly.
(UNCONTROLLED WHEN PRINTED)
VERSION 3 80 TECHNICAL SPECIFICATION
22/01/2019 LV SWITCHBOARDS
Appendices
Appendix A – Typical details & single line diagrams
Contents
1. Main LV Switchboards (MSBs)
2. Main Distribution Boards (MDBs)
3. SDA Boards (SDAs)
4. Switchboard Room Layouts
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATE
TIER E1 - SAFETY SERVICES
E1/F
TIER E2 - MDBs TIER E3 - LARGE MECHANICAL
TIER ISOL
E4/D
E4/C
E4/B
E4/A
TIER E4 - MDBs
TIER ISOL
E1/E
E1/D
E1/C
E1/B
E1/A
TIER ISOL
E2/D
E2/C
E2/B
E2/A
TIER ISOL
800
GLAND PLATE
ESSENTIALINCOMER
BUS-TIE
REVENUEMETER
ATSCONTROLLER
INCOMING CABLESCOMPARTMNET
INCOMING CABLESCOMPARTMNET
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
PROVISION FORFUTURE EXPANSION
FUTURE EXPANSION
GLAND PLATE GLAND PLATEGLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE GLAND PLATE
CABLEWAY
TIER N4 - LARGE MECHANICAL
N3/D
N3/C
N3/B
N3/A
TIER N3 - MDBs TIER N2 -SDA CT PANELS TIER N1 - SDA SWITCHBOARDS
TIER ISOL TIER ISOL TIER ISOL TIER ISOL
NON-ESSENTIALINCOMER
INCOMING CABLESCOMPARTMNET
REVENUEMETER
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
TIER N5 - LARGE AVIATION / ICT
TIER ISOL TIER ISOL
CABLEWAY
TIER N6 - LOCAL SERVICES
GLAND PLATE GLAND PLATE
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
100
500
300
900
700
1100
1300
1500
1700
2100
1900
00
200
00
400
600
800
FUTURE EXPANSION
TIER E5 - AVIATION / ICT
TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
TIER E6 - LOCAL SERVICES
GLAND PLATE GLAND PLATE
N1/E
N1/F
N1/D
N1/C
N1/B
N1/A
N5/E
N5/F
N5/D
N5/C
N5/B
N5/A
N2/E
N2/F
N2/D
N2/C
N2/B
N2/A
N4/E
N4/F
N4/D
N4/C
N4/B
N4/A
N6/E
N6/F
N6/D
N6/C
N6/B
N6/A
E3/E
E3/F
E3/D
E3/C
E3/B
E3/A
E5/E
E5/F
E5/D
E5/C
E5/B
E5/A
E6/E
E6/F
E6/D
E6/C
E6/B
E6/A
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
ESSENTIALCOMMUNICATIONSCOMPARTMENT
INCOMINGCOMMUNICATIONSCABLES
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
F
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD
FRONT CONNECT - GENERAL ARRANGEMENT
_AHT A23/10/2017FOR INFORMATION ONLY
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
400 600 400 (FUTURE EXPANSION)(FUTURE EXPANSION)
15000
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
OPTION 1 - MAIN LV SWITCHBOARDFRONT ELEVATION
NTS
OPTION 1 - MAIN LV SWITCHBOARDPLAN VIEW
NTS
OPTION 1 - MAIN LV SWITCHBOARDSIDE ELEVATION
NTS
600 400 600 400 600 400 600 400 600 800 800 800 600 400 600 400 600 400 600 400 600 400 600 400600
_MK D26/02/2019FOR INFORMATION ONLY
_TM E27/09/2019FOR INFORMATION ONLY
_AA F22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0032
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATE
E1/F
TIER E2 - MAIN DISTRIBUTION BOARDS
TIER ISOL
E4/D
E4/C
E4/B
E4/A
TIER ISOL
E1/E
E1/D
E1/C
E1/B
E1/A
TIER ISOL
E2/D
E2/C
E2/B
E2/A
TIER ISOL
800
GLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATE
ESSENTIALINCOMER
BUS-TIE
REVENUEMETER
ATSCONTROLLER
INCOMING CABLESCOMPARTMNET
INCOMING CABLESCOMPARTMNET
CABLEWAY
CABLEWAY
CABLEWAY
CABLEWAY
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
100
500
300
900
700
1100
1300
1500
1700
2100
1900
CABLEWAY
TIER N4 - LARGE MECHANICAL
N3/D
N3/C
N3/B
N3/A
TIER N3 - MAIN DISTRIBUTION BOARDS TIER N2 -SDA CT PANELS TIER N1 - SDA SWITCHBOARDS
TIER ISOL TIER ISOL TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
CABLEWAY
NON-ESSENTIALINCOMER
INCOMING CABLESCOMPARTMNET
REVENUEMETER
200
400
600
GLAND PLATE
800
GLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATEGLAND PLATE
FRONT OFBOARD
REAR OFBOARD
PROVISION FORFUTURE EXPANSION
PROVISION FORFUTURE EXPANSION
FUTURE EXPANSION
FUTURE EXPANSION
E6/E
E6/F
E6/D
E6/C
E6/B
E6/A
E5/E
E5/F
E5/D
E5/C
E5/B
E5/A
E3/E
E3/F
E3/D
E3/C
E3/B
E3/A
TIER ISOL TIER ISOL
CABLEWAY
CABLEWAY
TIER E3 - LARGE MECHANICAL TIER E4 - MAIN DISTRIBUTION BOARDS TIER E5 - AVIATION / ICT TIER E6 - LOCAL SERVICESTIER E1 - SAFETY SERVICES
N1/E
N1/F
N1/D
N1/C
N1/B
N1/A
N2/E
N2/F
N2/D
N2/C
N2/B
N2/A
N4/E
N4/F
N4/D
N4/C
N4/B
N4/A
CABLEWAY
TIER N5 - LARGE AVIATION
TIER ISOL
N5/E
N5/F
N5/D
N5/C
N5/B
N5/A
CABLEWAY
TIER N6 - LOCAL SERVICES
TIER ISOL
N6/E
N6/F
N6/D
N6/C
N6/B
N6/A
GLAND PLATE
GLAND PLATE
GLAND PLATE
GLAND PLATE
INCOMING COMMUNICATIONSCABLES
BUSBARCHAMBER
ESSENTIALCOMMUNICATIONS
COMPARTMENT
NON-ESSENTIALCOMMUNICATIONS
COMPARTMENT
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
E
A
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD
BACK TO BACK - GENERAL ARRANGEMENT
_AHT 23/10/2017FOR INFORMATION ONLY
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
800 800 600 400 600 400 600 400 600 400 600 400 600 400
7600
800 800
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
OPTION 2 - MAIN LV SWITCHBOARDFRONT ELEVATION
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDREAR ELEVATION
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDPLAN VIEW
SCALE : NTS
OPTION 2 - MAIN LV SWITCHBOARDSIDE ELEVATION
SCALE : NTS
_MK D26/02/2019FOR INFORMATION ONLY
_TM D27/09/2019FOR INFORMATION ONLY
_AA E22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0033
DENOTES CIRCUIT BREAKERLOCKED IN "ON" POSITION
LEGEND:
K KEY INTERLOCK
AUTOMATIC TRANSFER SYSTEM
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
MECHANICAL SERVICES SWITCHBOARD (MSSB)
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SUPPLY DISTRIBUTION AUTHORITY (SDA)
DISTRIBUTION BOARD (DB)
EM
MSSB
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:1. 'LARGE' DENOTES >= 250AMPS.
2. NUMBER OF TIERS PER GROUP TO SUIT THE QUANTITY OF REQUIREDOUTGOING WAYS INCLUDING 20% SPARE CAPACITY.
3. ONLY TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BE FEDDIRECTLY FROM THE MSB. TYPE A 6 METER PANEL SDA SWITCHBOARDSSHALL BE SUPPLIED FROM MDBS.
4. CURRENT RATINGS INDICATED ARE EXAMPLES ONLY AND SHOULD BESELECTED BASED ON DETAIL DESIGN REQUIREMENTS.
5. INTERFACE REQUIREMENTS WITH GENERATOR CONTROLS PLC ANDLOAD MANAGEMENT TO BE DETERMINED DURING PROJECT DESIGN.
6. ESSENTIAL SERVICES CIRCUIT BREAKERS TO BE MOTORISED ANDINTERFACED WITH GENERATOR CONTROL PLC IN LINE WITHGENERATOR LOAD MANAGEMENT STRATEGY.
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
BHS - BAGGAGE HANDLING SYSTEM
GPU - GROUND POWER UNIT
MCCB - MOULDED CASE CIRCUIT BREAKER
ACB - AIR CIRCUIT BREAKER
AHF - ACTIVE HARMONIC FILTER
PFC - POWER FACTOR CORRECTION
L&P - LIGHT & POWER
SP - SURGE PROTECTION
RM
K K
K
2MVA22kV/433V
ACB3200AN/C
2MVA22kV/433V
RM
ACB3200A
N/C
BUS-TIE3200A
N/O
MAIN LOW VOLTAGE SWITCHBOARD
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N4LARGE MECHANICAL
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
TIER N2SDA CT PANELS
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
REFER TO TYPICAL SDA SWITCHBOARDSCHEMATIC DRAWING AD26125
REFER TO TYPICAL SDA CT PANELSCHEMATIC DRAWING AD26125
TIER N1SDA SWITCHBOARDS
2000:5
APAM EMCS NETWORKSMART METER PLATFORM RM
2000:5
APAM EMCS NETWORKSMART METER PLATFORM
TIER N3MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
PFC
MCCB
400AxxxA
AHF
MCCB
250AxxxA
SUBSTATIONL&P DB
MCCB
400AxxxA
SP
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER N6LOCAL SERVICES
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
MMMMM APAM EMCSNETWORK
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
ICT
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N5LARGE AVIATION / ICT
M
CONTINUEDBELOW
MAIN LOW VOLTAGE SWITCHBOARD
CONTINUEDABOVE
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB MCCB
160AxxxA
MCCB
160AxxxA
ALL LIFE SAFETY SERVICES TIER ISOLATOR TO BE LOCKED 'ON'
TIER E1SAFETY SERVICES
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E2MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E3LARGE MECHANICAL
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E4MAINDISTRIBUTIONBOARDS
M M M
MCCB
400AxxxA
ICT
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E5AVIATION / ICT
MCCB MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER E6LOCAL SERVICES
MCCB
PFC AHF
SUBSTATIONL&P DB
SP
M M
MCCB
630A630A
M
CIRCUIT BREAKER WITHBUILT-IN METER FUNCTIONALITY
M
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
400A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
M M M M M M M M M M M M M M M MM M M M M M M M M M
MOTORISED CIRCUIT BREAKER(WITHDRAWABLE)
M
M
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
E
_AHT A
MAIN LOW VOLTAGE SWITCHBOARD
SINGLE LINE DIAGRAM
23/10/2017
SINGLE LINE DIAGRAM UPDATED_IMW B06/12/2018
FOR INFORMATION ONLY _MK C26/02/2019
FOR INFORMATION ONLY _TM D27/09/2019
_AA E22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0034
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
MDB-XXX-XXX
INCOMER
GLAND PLATEGLAND PLATE
CABLEWAY
CABLEWAY
GLAND PLATE
N1/D
00
400
200
800
600
1000
1200
1400
1600
2000
1800
2200
00
100
500
300
900
700
1100
1300
1500
1700
2100
1900
200
00
400
600
GLAND PLATEGLAND PLATE
CABLEWAY
CABLEWAY
GLAND PLATE
N1/E
N1/B
N1/F
N1/C N1/H
CT METER PANEL
MDB-XXX-XXX
E1/FE1/A
E1/GE1/B
E1/HE1/C
N1/G
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
N1/A
INCOMER
E1/D
E1/E
NON-ESSENTIALCOMMUNICATIONSCOMPARTMENT
CT METER PANEL
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
E
_AHT A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
GENERAL ARANGEMENT
23/10/2017
_IMW B10/07/2018SWITCHBOARD COLOURS AMENDED
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)
FRONT ELEVATIONNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)
FRONT ELEVATIONNTS
400 600 600 400 NOM 600 400 600 600 400 NOM 600
399.7298 600.1305 600 400
NOM
2200
NOM 2000
NOM
2200
NOM 2000
_IMW C06/12/2018SWITCHBOARD LAYOUT AMENDED
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)
PLAN VIEWNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)PLAN VIEW
NTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(ESSENTIAL)
SIDE ELEVATIONNTS
MAIN DISTRIBUTION SWITCHBOARD (MDB)(NON-ESSENTIAL)SIDE ELEVATION
NTS
_MK D26/02/2019FOR INFORMATION ONLY
_TM E27/09/2019FOR INFORMATION ONLY
_AA F22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0035
MAIN DISTRIBUTION BOARD (MDB)(ESSENTIAL)
MAIN DISTRIBUTION BOARD (MDB)(NON-ESSENTIAL)
LEGEND:
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
DISTRIBUTION BOARD (DB)
EM
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
M APAM EMCS NETWORK M APAM EMCS NETWORK
MAINISOLATOR
630A
MAINISOLATOR
630A
MCCB160A
20% EQUIPPEDSPARES
20% EQUIPPEDSPARES
MCCB160A
MCCB160A
MCCB160A
MCCB250A
MCCB200A
MCCB160A
MCCB200A
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB SDASWITCHBOARD
TYPE A
SDA CTMETERPANEL
(<=250A)
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB MSSB ICT
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
MCCB - MOULDED CASE CIRCUIT BREAKER
1. COMPOSITION/QUANTITY OF SWITCHBOARDS SUPPLIED FROM THE MDBSHALL SUIT THE REQUIREMENTS AT THE MDB LOCATION.
2. ONLY TYPE A 6 METER PANEL SDA SWITCHBOARDS SHALL BE FED FROMTHE MDB. TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BESUPPLIED FROM THE MSB.
RM
MCCB160A 160A
MCCB MCCB160A
MCCB160A
MCCB200A
MCCB200A
MCCB160A
MCCB200A
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SINGLE LINE DIAGRAM
23/10/2017
_IMW B06/12/2018SINGLE LINE DIAGRAM UPDATED
FOR INFORMATION ONLY _MK C26/02/2019
FOR INFORMATION ONLY TM C27/09/2019
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0036
MAIN SWITCHPOWERDISTRIBUTION
METERING
MAIN SWITCHPOWERDISTRIBUTION
METERING
POWERDISTRIBUTION
METERING
TENANT #1 TENANT #2
TENANT #3 TENANT #4
TENANT #5 TENANT #6
TENANT #1 TENANT #2 TENANT #3 TENANT #4
TENANT #5 TENANT #6 TENANT #7 TENANT #8
TENANT #9 TENANT #10 TENANT #11 TENANT #12
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A
SDA SWITCHBOARD TYPE A & TYPE B
GENERAL ARRANGEMENT
23/10/2017
NOM
1400
NOM
600
100
NOM
2100
NOM 1000NOM 450 NOM 1800
NOM
600
100
NOM
2100
TYPE A SDA SWITCHBOARDFRONT ELEVATION
NTS
SDA SWITCHBOARDSIDE ELEVATION
NTS
TYPE A SDA SWITCHBOARDFRONT ELEVATION
(EXTERNAL DOORS NOT SHOWN)NTS
TYPE B SDA SWITCHBOARDFRONT ELEVATION
(EXTERNAL DOORS NOT SHOWN)NTS
TYPE B SDA SWITCHBOARDFRONT ELEVATION
NTS
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
_TM C27/09/2019SWITCHBOARD LAYOUT AMENDED
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0037
SDA SWITCHBOARDTYPE A - 6 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5
SDA SWITCHBOARDTYPE B - 12 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5 TENANT #6 TENANT #7 TENANT #8 TENANT #9 TENANT #10 TENANT #11 TENANT #12TENANT #6
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
MCCB63A
MCCB63A
ISOL400A
MCCB63A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
ISOL200A
MCCB63A
LEGEND:ISOLATOR
CIRCUIT BREAKER
CURRENT TRANSFORMER (CT)
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
ABBREVIATIONS:
RM
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
FROM MDB FROM MSB
MCCB - MOULDED CASE CIRCUIT BREAKER
1. SDA CT METER PANEL ISOLATOR RATING TO MATCH THE TENANCY DB TYPE.REFER TO MAS-ELC-001 SECTION 6.6.1.
2. SDA CT METER PANELS RATED > 200A SHALL BE FED DIRECTLY FROM THE MSB.SDA CT METER PANELS <= 200A SHALL BE FED FROM MDBS.
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
MCCB80A
RM
APAM EMCSNETWORKSMART METERPLATFORM
SDA CT METER PANEL
FROM MSB or MDB
MAIN ISOLATOR100A to 400A
TO TENANCY DBTYPES 3 to 5
DISTRIBUTION BOARD (DB)
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
D
_AHT A23/10/2017
SDA SWITCHBOARDS AND SDA CT METER PANEL
SINGLE LINE DIAGRAM
_IMW B06/12/2018SINGLE LINE DIAGRAM UPDATED
FOR INFORMATION ONLY _MK C26/02/2019
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0038
MSB
1
A
2
3
MDB - NON-ESSMDB - ESS UPS BATT
APRONLIGHTINGUPS DB SUB DB
PFC AHF
-
-
1
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
MSB
MDB - NON-ESSMDB - ESSAHFPFC
APRONLIGHTINGUPS DB
SUB DB
UPS BATT
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
A
MSBAHF
SCALE 1 : 50OPTION 1 - MAIN SWITCHBOARD ROOM LAYOUT
SCALESECTION
1 : 502
SCALESECTION
1 : 503
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CLA
IM
ER
:T
his inform
ation is supplied by A
ustralia P
acific A
irports (M
elbourne) P
ty Ltd and is reproducedhere for inform
ation only. T
he inform
ation
show
n m
ust be verified for accuracy and com
pleteness by necessary investigation, site inspection and m
easurem
ent. M
elbourne A
irport ow
ns the
copyright to this draw
ing and the inform
ation contained in it. R
eproduction of, or any dealing in, this draw
ing, or the inform
ation it contains, is prohibited.
EXAMD EXAMD
D
_ A
OPTION 1 - MAIN LOW VOLTAGE SWITCHBOARD
FRONT CONNECT - ROOM LAYOUT
SD 23/10/2017
- -
1000 15000 1000
800
1600
1000
600
1200
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
17000
600
600
_MK C26/02/2019FOR INFORMATION ONLY
_AA D22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0039
MSB
2
B3
4
-
-
MDB - NON-ESSMDB - ESS AHF PFC
SUBDB
APRONLTGUPD DB
UPS
BATT
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
2
MSB
DBMDB - NON-ESSMDB - ESS
AHFPFC
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
MSB
DB
B
AHF
BATT UPS
SCALE 1 : 50OPTION 2 - MAIN SWITCHBOARD ROOM LAYOUT
SCALESECTION
1 : 503
SCALESECTION
1 : 504
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
C
_ ASD
OPTION 2 - MAIN LOW VOLTAGE SWITCHBOARD
BACK TO BACK - ROOM LAYOUT
23/10/2017
--
(T.P. VERSION)
76001000
1600
800
800
1600
600
600
2200
1300
2200
1300
1000
600
1000
600
600
_IMW B06/12/2018SWITCHBOARD LAYOUT AMENDED
600
_AA C22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0040
MDB
MDB
3
C3
4
N/ESS
ESS
-
SDA
SWITCH
BOAR
D
-
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
3
N/ESS
SDAESS
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
C
SDA N/ESSESS
SCALE 1 : 50MDB & SDA ROOM LAYOUT
NOT TO SCALEMDB & SDA 3D VIEW
SCALESECTION
1 : 503
SCALESECTION
1 : 504
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_ ASD
MDB & SDA
SWITCHROOM LAYOUT
23/10/2017
- -
600
600
600
600
600
600900600
2200
1300
2100
1400
2100
1400
2200
1300
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0041
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
ESS N/ESS
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
D
N/ESS
5
E7
8
ESS N/ESS
-
-
SDA CTMETERPANEL
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
ESS N/ESS SDA CTMETERPANEL
GROUNDRL 0.000 m
LEVEL 1RL 3.500 m
E
MDB MDB
4
D3
4
ESS N/ESS
-
-
SCALE 1 : 50MDB CUPBOARD LAYOUT
NOT TO SCALEMDB CUPBOARD 3D VIEW
SCALESECTION
1 : 50-3
SCALESECTION
1 : 50-4
SCALE 1 : 50FINAL DB CUPBOARD LAYOUT
NOT TO SCALEFINAL DB 3D VIEW
SCALESECTION
1 : 50-7
SCALESECTION
1 : 50-8
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
C
_ ASD
MDB ESS & N/ESS & FINAL DB
CUPBOARD LAYOUTS
23/10/2017
550 550 550
2000 390 2000
1600
3000
2200
600 700
2200
800
2700
2000
1620 380190
2700
1000
1000
1200
600
600
GENERAL NOTES:1. MDB/SDA/DB ROOMS ARE PREFERRED TO CUPBOARDS. WHERE BOARDS
ARE TO BE INSTALLED WITHIN CUPBOARDS, LOCATION TO BE REVIEWEDSO NOT ACCESSED OFF MAIN CIRCULATION PATHS.
NOTE:ENSURE CLEAR OPENING FOR DB DOORS. NOINFRINGEMENT WITH CUPBOARD DOORS/HINGES
NOTE:ENSURE CLEAR OPENING FOR MDB DOORS. NOINFRINGEMENT WITH CUPBOARD DOORS/HINGES
FOR INFORMATION ONLY _ BTM 29/09/2019
_AA C22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0042
DENOTES CIRCUIT BREAKERLOCKED IN "ON" POSITION
LEGEND:
K KEY INTERLOCK
AUTOMATIC TRANSFER SYSTEM
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
MECHANICAL SERVICES SWITCHBOARD (MSSB)
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SUPPLY DISTRIBUTION AUTHORITY (SDA)
DISTRIBUTION BOARD (DB)
EM
MSSB
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:1. 'LARGE' DENOTES >= 250AMPS.
2. NUMBER OF TIERS PER GROUP TO SUIT THE QUANTITY OF REQUIREDOUTGOING WAYS INCLUDING 20% SPARE CAPACITY.
3. ONLY TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BE FEDDIRECTLY FROM THE MSB. TYPE A 6 METER PANEL SDA SWITCHBOARDSSHALL BE SUPPLIED FROM MDBS.
4. CURRENT RATINGS INDICATED ARE EXAMPLES ONLY AND SHOULD BESELECTED BASED ON DETAIL DESIGN REQUIREMENTS.
5. INTERFACE REQUIREMENTS WITH GENERATOR CONTROLS PLC ANDLOAD MANAGEMENT TO BE DETERMINED DURING PROJECT DESIGN.
6. ESSENTIAL SERVICES CIRCUIT BREAKERS TO BE MOTORISED ANDINTERFACED WITH GENERATOR CONTROL PLC IN LINE WITHGENERATOR LOAD MANAGEMENT STRATEGY.
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
BHS - BAGGAGE HANDLING SYSTEM
GPU - GROUND POWER UNIT
MCCB - MOULDED CASE CIRCUIT BREAKER
ACB - AIR CIRCUIT BREAKER
AHF - ACTIVE HARMONIC FILTER
PFC - POWER FACTOR CORRECTION
L&P - LIGHT & POWER
SP - SURGE PROTECTION
RM
K K
K
2MVA22kV/433V
ACB3200AN/C
2MVA22kV/433V
RM
ACB3200A
N/C
MAIN LOW VOLTAGE SWITCHBOARD
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N4LARGE MECHANICAL
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
MCCB
630AxxxA
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
TIER N2SDA CT PANELS
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
MCCB
REFER TO TYPICAL SDA SWITCHBOARDSCHEMATIC DRAWING AD26125
REFER TO TYPICAL SDA CT PANELSCHEMATIC DRAWING AD26125
TIER N1SDA SWITCHBOARDS
2000:5
APAM EMCS NETWORKSMART METER PLATFORM RM
2000:5
APAM EMCS NETWORKSMART METER PLATFORM
TIER N3MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
PFC
MCCB
400AxxxA
AHF
MCCB
250AxxxA
SUBSTATIONL&P DB
MCCB
400AxxxA
SP
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER N6LOCAL SERVICES
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
MMMMM APAM EMCSNETWORK
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
ICT
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER N5LARGE AVIATION / ICT
M
CONTINUEDBELOW
MAIN LOW VOLTAGE SWITCHBOARD
CONTINUEDABOVE
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB
160AxxxA
MCCB MCCB
160AxxxA
MCCB
160AxxxA
ALL LIFE SAFETY SERVICES TIER ISOLATOR TO BE LOCKED 'ON'
TIER E1SAFETY SERVICES
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E2MAINDISTRIBUTIONBOARDS
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MSSB
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E3LARGE MECHANICAL
MCCB
630A630A
MCCB
630A630A
MCCB
630A630A
REFER TO TYPICAL MDBSCHEMATIC DRAWING AD26125
TIER E4MAINDISTRIBUTIONBOARDS
M M M
MCCB
400AxxxA
ICT
MCCB
400AxxxA
BHS
MCCB
400AxxxA
BHS
MCCB
400AxxxA
GPU
MCCB
400AxxxA
MCCB
400AxxxA
20% EQUIPPEDSPARES
TIER E5AVIATION / ICT
MCCB MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
MCCB
400AxxxA
MCCB
400AxxxA
MCCB
250AxxxA
20% EQUIPPEDSPARES
TIER E6LOCAL SERVICES
MCCB
PFC AHF
SUBSTATIONL&P DB
SP
M M
MCCB
630A630A
M
CIRCUIT BREAKER WITHBUILT-IN METER FUNCTIONALITY
M
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
400A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1200A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
TIER ISOLATINGCIRCUIT BREAKER
1000A4 POLE
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
ALLOW FOR REMOVABLELINK FOR PFC/AHF CTs
M M M M M M M M M M M M M M M MM M M M M M M M M M
MOTORISED CIRCUIT BREAKER(WITHDRAWABLE)
M
BUS-TIE3200A
N/OM
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN LOW VOLTAGE SWITCHBOARD SINGLE LINE
DIAGRAM WITH NETWORK COMMUNICATIONS
CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0043
EDMI Smart Meter(Supplied by APAM)
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Si-D
Wireless toSmartlinkGateway (Upto 20 devices)DIN-Railed
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
TierDisplay
(By Smart MeterContractor)
(By Smart MeterContractor)
MasterpactMTZ ACB(with Ethernet)
FDM128
Si-D
Tier DisplayTierDisplay
TierDisplay
TierDisplay
FDM128 FDM128TierDisplay
TierDisplay
TierDisplay
TierDisplay
TierDisplay
TierDisplay
FDM128
TierDisplay
FDM128 FDM128
APAM EMCS NETWORK
ConneXium8Port Switch
FDM128
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
FDM128 FDM128Si-D
FDM128 FDM128FDM128
Ethernet
EthernetInterfaceIFE IFE IFE IFE IFE IFE
IFE IFE IFE IFE IFE IFE
MasterpactMTZ ACB(with Ethernet)
ULP, Typical
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
EthernetInterface
MasterpactMTZ ACB(with Ethernet)
ConneXium8Port Switch
APAM EMS NETWORK
ConneXium8Port Switch
ConneXium8Port Switch
EDMI Smart Meter(Supplied by APAM)
MAIN DISTRIBUTION BOARD (MDB)(ESSENTIAL)
MAIN DISTRIBUTION BOARD (MDB)(NON-ESSENTIAL)
LEGEND:
ISOLATOR
CIRCUIT BREAKER
CIRCUIT BREAKER (WITHDRAWABLE)
DISTRIBUTION BOARD (DB)
EM
M
CURRENT TRANSFORMER (CT)
ENERGY METERINGDIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
CHECK METERINGDIGITAL MULTI-FUNCTION METERCLASS 1 ACCURACY
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
M APAM EMCS NETWORK M APAM EMCS NETWORK
MAINISOLATOR
630A
MAINISOLATOR
630A
MCCB160A
20% EQUIPPEDSPARES
20% EQUIPPEDSPARES
MCCB160A
MCCB160A
MCCB160A
MCCB250A
MCCB200A
MCCB160A
MCCB200A
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB SDASWITCHBOARD
TYPE A
SDA CTMETERPANEL
(<=250A)
LIGHT &POWER DB
LIGHT &POWER DB
LIGHT &POWER DB
MSSB MSSB ICT
ABBREVIATIONS:MSSB - MECHANICAL SERVICES SWITCHBOARD
MCCB - MOULDED CASE CIRCUIT BREAKER
1. COMPOSITION/QUANTITY OF SWITCHBOARDS SUPPLIED FROM THE MDBSHALL SUIT THE REQUIREMENTS AT THE MDB LOCATION.
2. ONLY TYPE A 6 METER PANEL SDA SWITCHBOARDS SHALL BE FED FROMTHE MDB. TYPE B 12 METER PANEL SDA SWITCHBOARDS SHALL BESUPPLIED FROM THE MSB.
RM
MCCB160A 160A
MCCB MCCB160A
MCCB160A
MCCB200A
MCCB200A
MCCB160A
MCCB200A
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN DISTRIBUTION SWITCHBOARD (MDB)
SINGLE LINE DIAGRAM WITH NETWORK
COMMUNICATIONS CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0044
(By Smart MeterContractor)
Moxa MB3170
APAM ECMSNETWORK
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
ConneXium4Port Switch
Serial toModbus TCPEthernet
(By Smart MeterContractor)
APAM EMSNETWORK
MCCBs (Typical):Schneider NSX fitted withPowerTag NSX Meters
Wireless toSmartlink Gateway(Up to 20 devices)DIN-Railed
Si-D
ConneXium4Port Switch
Serial toModbus TCP
Ethernet Moxa MB3170
MAINSWITCH
TENANT #3 TENANT #4 TENANT #5
SDA SWITCHBOARDTYPE B - 12 METER SDA MAIN
SWITCH
TENANT #1 TENANT #2 TENANT #3 TENANT #4 TENANT #5 TENANT #6 TENANT #7 TENANT #8 TENANT #9 TENANT #10 TENANT #11 TENANT #12TENANT #6
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
MCCB63A
MCCB63A
ISOL400A
MCCB63A
MCCB80A
MCCB80A
MCCB80A
MCCB63A
ISOL200A
MCCB63A
LEGEND:ISOLATOR
CIRCUIT BREAKER
CURRENT TRANSFORMER (CT)
REVENUE METERINGNMI ACCREDITED DIGITAL MULTI-FUNCTION METERCLASS 0.5 ACCURACY
GENERAL NOTES:
ABBREVIATIONS:
RM
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
FROM MDB FROM MSB
MCCB - MOULDED CASE CIRCUIT BREAKER
1. SDA CT METER PANEL ISOLATOR RATING TO MATCH THE TENANCY DB TYPE.REFER TO MAS-ELC-001 SECTION 6.6.1.
2. SDA CT METER PANELS RATED > 200A SHALL BE FED DIRECTLY FROM THE MSB.SDA CT METER PANELS <= 200A SHALL BE FED FROM MDBS.
RM
APAM EMCSNETWORKSMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
RM SMART METERPLATFORM
MCCB80A
RM
APAM EMCSNETWORKSMART METERPLATFORM
SDA CT METER PANEL
FROM MSB or MDB
MAIN ISOLATOR100A to 400A
TO TENANCY DBTYPES 3 to 5
DISTRIBUTION BOARD (DB)
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
ILE
$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
SDA SWITCHBOARDS AND SDA CT METER PANEL
SINGLE LINE DIAGRAM WITH NETWORK
COMMUNICATIONS CONNECTIONS OVERLAY
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0045
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
(By Smart Meter Contractor)
MoxaMB3170
Serial toModbusTCP
APAM EMCSNETWORK
EthernetModbus ModbusMoxa
MB3170
Serial toModbusTCP
Ethernet
(By Smart Meter Contractor)
MoxaMB3170
Serial toModbusTCP
APAM EMCSNETWORK
Ethernet
APAM EMCSNETWORK
MELBOURNE AIRPORT
$TIME$$MODELNAME$
$F
IL
E$
$USER$$DATE$
FOR INFORMATION ONLY
DRAWING NO.
A1
REV
DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.DESIGN DRN CHKD AMENDMENTS APPD DESIG DATE No.
DIS
CL
AIM
ER
:T
his in
fo
rm
atio
n is su
pp
lie
d b
y A
ustra
lia
P
acific A
irp
orts (M
elb
ou
rn
e) P
ty L
td
a
nd
is re
pro
du
ce
dh
ere
fo
r in
fo
rm
atio
n o
nly. T
he
in
fo
rm
atio
n
sh
ow
n m
ust b
e ve
rifie
d fo
r a
ccu
ra
cy a
nd
co
mp
le
te
ne
ss b
y n
ece
ssa
ry in
ve
stig
atio
n, site
in
sp
ectio
n a
nd
m
ea
su
re
me
nt. M
elb
ou
rn
e A
irp
ort o
wn
s th
e
co
pyrig
ht to
th
is d
ra
win
g a
nd
th
e in
fo
rm
atio
n co
nta
in
ed
in
it. R
ep
ro
du
ctio
n o
f, o
r a
ny d
ea
lin
g in
, th
is d
ra
win
g, o
r th
e in
fo
rm
atio
n it co
nta
in
s, is p
ro
hib
ite
d.
EXAMD EXAMD
B
_TM A
MAIN LOW VOLTAGE SWITCHBOARD NETWORK
CONNECTION BLOCK DIAGRAM
--/--/--
_AA B22/11/2019DRAWING NAME UPDATE
MELBAIR-
UTL-AP-LEX-
DR-ET-0046
Incoming SupplyRevenue MeterEDMI Smart Meter(Provided by APAM)
Tier Outgoing WaysSchneider NSX
Schneider ConneXiumSwitches (Din Railed)
Tier MeterDisplaySchneiderFDM128
Wireless Smartlink GatewaysSchneider Si-D (Din Railed)
MSBNON-ESSENTIAL
TIERS
Ethernet
APAM - MSB Network Connection Diagram
TYPICAL NON-ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
MSB ESSENTIALTIERS
Main Non-Essential ACBSchneider MasterpactMTZ2
Schneider ConneXiumSwitches (Din Railed)
APAM EMS NETWORK
Main Essential ACBSchneider MasterpactMTZ2
Main Bus-Tie ACBSchneider MasterpactMTZ2
APAM EMS NETWORK
Ethernet
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL NON-ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Tier Outgoing WaysSchneider NSX
Tier MeterDisplaySchneiderFDM128
TYPICAL ESSENTIAL TIER
Tier Isolating CBSchneiderCompact NS
IFE EthernetInterface
Incoming SupplyRevenue MeterEDMI Smart Meter(Provided by APAM)
(UNCONTROLLED WHEN PRINTED)
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C:\Users\dmurray1\Dropbox\APAM DRAFT Standards\MAS-ELC-003_LV Switchboard Specification_Rev 3 APAM Approved.docx
Document Status
Version Author Reviewer Approved for Issue
Name Signature Name Signature Date
00 DC C Berriman CB* D Collins DC* May 17
01 TP C Berriman CB* C Berriman CB* June 18
02 TP C Berriman CB* C Berriman CB* July 18
03 TP C Berriman CB* C Berriman CB* Mar 19
04 TP C Berriman CB* C Berriman CB* Sep 19
05 TP C Berriman CB* C Berriman CB* Dec 19
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