pe d in std 001 01 e_standard for instrumentation cables

PE-D-IN-STD-001-01-E of 33

Master Language: EnglishVersion: 1.0

Index of content

1. Introduction & Intended Purpose of Regulation ............................................................ 32. Content of Regulation ..................................................................................................... 32.1. Design data ................................................................................................................ 32.2. Technical requirements ............................................................................................. 32.2.1. Instrumentation cables – general .......................................................................... 32.2.2. Signal cables for general instrumentation ............................................................ 52.2.3. Signal cables for Foundation Fieldbus ................................................................. 62.2.4. Signal cables for Fire and Gas Detection Service ................................................ 62.2.5. Cables for instrumentation power signals ............................................................ 72.2.6. Cable for thermocouple / RTD ............................................................................... 82.2.7. Cables for data transmission ................................................................................. 82.2.8. Fibre optic cables ................................................................................................... 82.2.9. Grounding cables ................................................................................................... 92.3. Cable marking, drumming, packing and cables installation ................................. 102.3.1. Cable marking ...................................................................................................... 102.3.2. Cable drum marking ............................................................................................ 102.3.3. Drumming and packing ....................................................................................... 112.3.4. Cable installation.................................................................................................. 112.3.5. Cable glands ......................................................................................................... 142.3.6. Cable and junction boxes tagging....................................................................... 152.4. Quality assurance .................................................................................................... 162.4.1. General ................................................................................................................. 162.4.2. Inspections during manufacturing ...................................................................... 172.4.3. Manufacturer/Supplier’s internal test ................................................................. 172.4.4. Warranty and guarantee period .......................................................................... 182.5. Documentation ........................................................................................................ 183. Internal Reference Links ............................................................................................... 194. External Reference Links............................................................................................... 195. Obsolete Regulations .................................................................................................... 206. Certification Standards ................................................................................................. 207. Terms & Abbreviations ................................................................................................. 208. Keywords / Search Criteria ........................................................................................... 219. Annexes ......................................................................................................................... 2110. Amendments from Previous Versions ......................................................................... 2111. Transitory provisions .................................................................................................... 22Annex A ................................................................................................................................... 23Annex B ................................................................................................................................... 26



1. Introduction & Intended Purpose of Regulation

This standard defines minimum requirements for design, manufacture, inspection, testing, packaging, delivery and installation of instrumentation cables

The aim of this document is to guide the choice and use of instrumentation cables of the many possible options and features, however it is recognised that not all circumstances can be covered. In situations where project specific considerations may justify deviation from this document, a document supporting the request for deviation shall be submitted to Petrom E&P for approval.

This document shall be used as the guideline whenever a new facility is to be built or an existing facility has to be revamped.

2. Content of Regulation

2.1. Design data

All Instrumentation cables shall be suitable for the worst expected installation, operating and environmental conditions defined in the project Basis of Design.

Prototype materials and prototype cable designs are not acceptable. Only cables/materials that have been proven reliable in similar applications shall be used. All cables used must be brand new and made of high quality materials.

2.2. Technical requirements

2.2.1. Instrumentation cables – general

Cables installed outdoors shall be suitable for the Romanian characteristics - continental climate with high rainfall, intense exposure to sunlight and large changes in ambient temperature, including freezing.

Cables shall withstand prolonged exposure to moisture, oil, high and low temperatures. All cables exposed to ultraviolet radiation shall have an UV barrier.

In areas where the permanent presence of personnel is expected, the cable shall be low smoke and fume type and shall not emit toxic substances when subjected to temperature of 25 °C and above.

For all signals, except thermocouples, the conductor material shall be copper.

For resistance thermometer elements, the conductor resistance shall be compatible with the requirements as specified by the Manufacturer of the resistance thermometer elements and/or the instrument.

The service life of instrumentation cables shall be minimum the design plant life.

The cables shall have at least the characteristics listed here below: a) Oil resistance according to IEC 60092. b) Resistance to environmental conditions specified, including the methods of test for resistance to temperature requirements in EN 60811. c) Flame resistance (self-extinguishing), in accordance with the tests set out in EN 60332. d) Fire resistance, if necessary, in accordance with the tests set out in IEC 60331.



e) Low emission of corrosive and toxic gas, according to the tests established in IEC 60754. f) Mechanical protection, if necessary, through metal armour made of galvanized steel tape or steel wire braid.

All external cables shall be resistant to rising temperature when exposed to sunlight.

Whit no exception, cable filler shall be solid, non-porous, and shall fill the interstitial space so as to prevent the flow of gas or hydrocarbon along the cable length in normal operating conditions.

Multi-pairs cables with 2 pairs, 4 pairs, 6 pairs, 10 pairs, 16 pairs and 20 pairs (or triples) and minimum conductor size of 1 mm2 shall preferably be used.

The core colours shall be: - Pair: white for positive and black for negative polarity, with number code on

polyester tape (or directly onto isolation); - Triple : white, red, and black with number code on polyester tape (or directly

onto isolation);

Any cable on F&G service shall be fire resistant. All others shall be flame retardant.

Except F&G cables who shall be tested for fire resistant properties according to IEC 60331, all other cables shall be tested according to EN 60332 Part 3 Category C for flame retardant properties .

The following aspects shall be considered for cable sizing: - Current carrying capacity - Voltage drop criteria - Short circuit capability

To reduce electromagnetic /radio frequency interferences (EMI / RFI) instrumentation cables shall be of twisted conductors construction (except power cables) with individual and/or collective screen. The electrostatic screen shall consist of one or two aluminium tapes with drain or continuity wire made of flexible copper strands, laid longitudinal and continuously contacting the aluminium tape.

Individual pair/triple screening shall only be applied if specifically needed by the application (e.g. 4-20mA instrumentation signals).

The cables and cores shall be sized and selected for the appropriate duty.

Multi-core copper cables shall be utilised for short haul data links between control systems and for power supply systems.

Specialised cables such as thermocouple extension and system cables for interconnection between cabinets shall be utilised as appropriate.

There shall be a minimum of 20% spare (unused pairs/triples/conductors) on each cable.

When the design is finalised, 20% of the installed cabling capacity shall be available in each signal level class to accommodate unforeseen future plant modifications.

Cable electrical data (where applicable) shall de provided as follows: - conductor resistance in DC at 20°C. - conductor resistance per Km, in AC at system operating temperature and

frequency - minimum allowable bending radius, - conductor maximum operating temperature,



- data and technical documentation (e.g. catalogues, etc.) in support of the offered cables with cross-section view of each cable type;

- maximum distance between cable supports both for horizontal and vertical laying;

- maximum tensile stress (on laying) for each cable and cable laying special instructions;

- cable loading capacity when laid aerial, in ducts and buried, together with the correction factors for various ambient temperatures, various laying methods and requirements, cable grouping etc.;

- fire or flame resistance test results and halogen certificates.

Direct buried cables shall be moisture and abrasion resistant. The Supplier shall certify that the cable is suitable for direct buried service and is moisture and abrasion resistant.

There are 6 basic cable types available for any application, either single pair/triple or multi-pair/triple, as defined in the Annex 1 - Basic cable types and coding cable type.

Each project shall define and select, according to the specific project needs, the cable types by combining the 6 basic cable types and the requirements of this document.

Plant instrumentation cables are categorized as follows: • signal cables for general instrumentation. • signal cables for Foundation Fieldbus • signal cables for F&G • cables for instrumentation power signals. • thermocouple/ thermo-resistance cables. • data transmission cables. • fibre optic cables. • grounding cables

2.2.2. Signal cables for general instrumentation

Cables for low level 4-20 mA signals to/from field transmitters, control valve positioners, solenoid valves, “mV” level signals from proximity and vibration sensors, and ON/OFF signals, shall be of the type described in this section.

Single pair/triple copper cables shall be generally utilised for connecting field instruments to field junction boxes and multi-pair/triple copper cables from the field junction boxes to the marshalling cabinets. The cables shall have twisted pairs/triples and shall be generally protected by galvanized steel wire armour.

Detailed specification shall be as below:

Rated Voltage: 300 V r.m.s. core to earth and 500 V r.m.s. core to core

Conductors: Stranded plain annealed copper, 7 strands minimum. Wire cores shall not be less than 1 mm2. For solenoid valves (except low power consumption / EExi type ) minimum conductor size shall be 1.5 mm2.

Insulation: XLPE (90 °C) Pair or triple: Twisted Assembly: Concentric Layers



Screen: Aluminium screen on polyester base with drain wire

Bedding: PVC Armour: Galvanized steel wire Outer Sheath: PVC resistant to hydrocarbons and UV action Fire/flame protection type: Flame retardant Core Identification: Number Black / White for pairs.

Number Black / White / Red for triples.

The cable shall be covered by an external sheathing having the same characteristics of the internal one or better.

Cables shall have uniform jacketing and the outer sheath material shall be colour coded as follows:

- light blue RAL 5015 for I.S. applications; - for all others services (except IS, F&G circuits and power supply cables): grey

Cable capacitance and inductance shall not invalidate the requirements for intrinsically safe or non-incentive (switched) circuits.

2.2.3. Signal cables for Foundation Fieldbus

The foundation Fieldbus cable shall be according to IEC 61158.


Rated Voltage 300 V Temperature -40 to 70 °C (Mounting Temperature not under 5oC) Material outer jacket PVC or PE Insulation XLPE Conductor Stranded bare copper twisted pair DC resistance < 42.8 Ω/m Rated current 13.6 A Nominal impedance 88±8 _ at 1 MHz Nominal capacitance conductor to conductor 56.4±6.5 pF/m

conductor to shield 91.8±9.8 pF/m Nominal inductance 0.48 _H/m Attenuation <2.5dB/km at 38.4 kHz Shield Aluminium foil (100% coverage)

0.5 mm2 (20 AWG), stranded tinned copper 0.8 mm2 (18 AWG), stranded bare copper twisted pair

Bending Radii >120 mm Armour Galvanized Steel wire

2.2.4. Signal cables for Fire and Gas Detection Service

Cables for low level 4-20 mA signals to/from flame and gas detectors, mA level signals from smoke detectors, manual break-glass stations, fire protection service field transmitters, electronic level binary status signals for fire alarms, horns, beacons including inter fire and gas panel signals and inter communication panel signals shall be of the type described in this section.




Rated Voltage 300 V r.m.s. core to earth and 500 V r.m.s. core to core

Conductors Stranded plain annealed copper, 7 strands minimum. Minimum wire diameter is 1.0 mm2.

Fire barrier Mica/glass tape Insulation XLPE (90 °C) Pair or triple Twisted Identification pairs Black, white numbered Assembly Concentric Layers Screen Aluminium screen on polyester base with drain

wire Bedding PVC Armour Galvanized Steel wire Outer Sheath PVC resistant to hydrocarbons and UV action Fire/flame protection type: Fire resistant Core Identification Number Black / White for pairs.

Number Black / White / Red for triples.

Compared to general instrumentation detailed in section 2.2.2, different colours (red RAL 3000) shall be provided for the cables outer sheath used in fire and gas detection systems.

2.2.5. Cables for instrumentation power signals

Cables for instrumentation power supply systems, control relays, etc. shall be as per this section.

Multicore cables made up of untwisted conductors without screen shall be utilised.

Minimum core sizes shall be 1.5 mm2 as required to minimize voltage drop to less than 10 % of nominal applied voltage over long cable runs.

Detailed specification shall be as below: Type: multicore Rated Voltage: 300 V r.m.s. core to earth and 500 V r.m.s. core to

core Conductors: stranded plain annealed copper, 7 strands

minimum. Wire cores shall not be less than 1.5 mm2.

Conductor un/twisted: untwisted Screen: None Insulation: XLPE (90 °C) Assembly: Concentric Layers Bedding: PVC Armour: Galvanized steel wire Outer Sheath: PVC resistant to hydrocarbons and UV action

The outer sheath for power supply cables shall be of black colour.



2.2.6. Cable for thermocouple / RTD

Thermocouple extension cables shall be flame retardant to EN 60332 Part 3.

For thermocouple signals, the conductors shall consist of pairs of dissimilar materials with the correct thermo-electric voltage as a function of temperature, based on EN 60584-3.

For resistance thermometer elements, the conductor resistance shall be compatible with the requirements as specified by the Manufacturer of the resistance thermometer elements and/or the instrument.

Signal wires shall be twisted in pairs/triples. The use of quad cables requires approval by Company.

General characteristics that shall be met by these cables are:

Conductors Solid alloy conductor Insulation XLPE Pair/triple Twisted Identification pairs Numbered pairs and colour code according to EN

60584 / EN 60751 Individual screen Aluminium screen on polyester base with drain

wire Assembly Concentric Layers Overall Screen Aluminium screen on polyester base with drain

wire Bedding PVC Armour Galvanized Steel wire comply with EN 10257-1 Outer Sheath PVC resistant to hydrocarbons and UV action

Exterior coating colour cables for thermocouples shall be in accordance with EN 60584-3.

2.2.7. Cables for data transmission

Cables for data transmission between computers / electronics systems shall be flame retardant according to EN 60332 Part 3.

The data transmission cable must be protected by armour and a shield as follows:

Reinforcing Reinforced steel wire / ribbon braided Coating PVC or thermoplastic components with low

emission / zero halogen (LSZH) Electrical properties of computer and data transmission cables shall be determined by Contractor in detailed design phase.

2.2.8. Fibre optic cables

Fibre optic cables selection shall be considered according to the purpose of use and application.

A fully dielectric fibre optic cable suitable for blowing into HDPE conduit filled with compound to prevent axial and longitudinal ingress of water and / or soluble chemicals throughout the cable shall be provided.



The fibres shall be contained within a ruggedly constructed cable format with integral strain relief.

Sufficient fibre shall be used to avoid any strain on the fibres during drumming, transportation, installation, splicing and repairs.

Traction elements shall be made out of Kevlar or equivalent.

The allowable tensile loading of the cable shall be 2.500 – 3.000 N, suitable for blowing the cable into HDPE conduit.

The outer cladding of the cable shall consist out of black PE, labelling according to EN 60794. Other colour coding and labelling of the particular cable components shall be according to IEC 60304 (or HD 402 S2).

External sheath of FO cables shall be fire resistant (IEC 60331) for FO cables on F&G and communications service and flame retardant (EN 60332) for PCS and SIS service.

The cable lengths to be supplied shall be as long as possible per each drum.

The entire cable length shall be blown into HDPE cable conduit except short length inside the plants where it could be installed in metallic tray.

The number of splices shall be minimized. Splice enclosures shall be an enterable waterproof type and shall provide a means of securing the strain relief members.

Splicing shall be by the fusion technique and the attenuation at each splice shall be less than 0.1 dB when measured in either direction.

Each splice shall be protected by an airtight and watertight sleeve.

The fibres shall be terminated in each building in an airtight dust free joint box, provided with a means of securing the strain relief members. Any metal components shall be earthed at one end.

The Contractor shall provide detailed power budget calculations, allowing for up to four extra splices to be made in each cable drum length for future repairs.

The cable shall comprise sufficient fibres for the scope of project with a minimum number of 12 fibre cores. There shall be minimum 20% spare fibre cores on each FO cable.

Fibre optic outdoor cables shall consist of water blocking material, water blocking ring, moisture barrier sheath or other method which is applicable in order to form moisture protection.

The details for FO cables are specified in the Annex 2 – FO technical parameters.

Buried passive markers shall be installed to facilitate the retrieval of the buried FO splice box and for identification of the cable route.

Passive markers shall be buried at chamber locations and protective casing ends at road crossings, to facilitate detailed location by means of a handheld electronic locator.

2.2.9. Grounding cables

All instrumentation grounding cables shall be PE or PVC insulated yellow/green copper cable with a single wire.

Flame retardant grounding cables shall be use.

All grounding cables shall be resistant to rising temperature when exposed to sunlight and shall have an UV barrier.



Conductive parts of instrumentation equipment shall be connected to the main earthing loop using minimum 6 mm2 size.

The minimum size of earthing cable for Junction Boxes / Marshalling Boxes / Control Panels shall be 16 mm2.

Cable Ladders, Racks and Trays shall be bonded by using a minimum 35 mm2 copper cable size.

For the shorter length cable tray (less than 3 m) earth conductor shall be 6 mm2, green/yellow sheathed flexible copper wire.

Also, screw connected walls, covers, and doors shall be separately grounded via grounding wire. Core sizes shall be in accordance with IEC-60364-5-54 (or HD 60364-5-54).

2.3. Cable marking, drumming, packing and cables installation

2.3.1. Cable marking

The outer sheath of each cable shall be marked to allow clear legibility of cable data. Marking shall last for the entire life of the cable.

As minimum, the following data shall be indelibly marked or embossed on the cable outer jacket with gaps of 500 mm:

- manufacturer’s name - manufacturer’s reference - date of manufacture - rated voltage - number of pairs/triples - conductor size in mm2

- oil & sunlight resistant - direct burial, where applicable - length marking.

The conformity standards shall be marked only for fully complies.

Length shall be clearly marked on the outer sheath in 1 meter increments starting from the drum centre.

Fire resistant cables shall be embossed on the outer sheath with the words “Fire resistant” at a minimum 1 meter interval, continually along the cable length.

2.3.2. Cable drum marking

Each cable drum has to be provided with a dedicated plate (laminated plastic, stainless steel or any resistant material label) firmly attached to the upper and lower side of each reel.

Tags shall include the following information: - drum identification number; - purchase order number and item number; - manufacturer’s name - date of manufacture - minimum installation temperature



- cable type - voltage grade - gland size - number of cores and cable cross-sectional area in mm² - exact cable length on drum in meters - total weight (gross weight in kg) - weight per meter - safe pulling tension on cable - minimum bend radius.

More information (like drum size, manufacturer’s works name where the cable has been produced, cable diameter, cable diameter under the armour, total weight of cable, weight of cable drum, or other specific data) may be included in addition to the information requested above.

Drum identification tags shall be fixed inside and outside the reel.

The numbering format shall be submitted to Contractor/Company for approval.

2.3.3. Drumming and packing

All drum cables shall be continuous without splices. Instrument cables shall be coiled on drums in detailed specified lengths.

The Supplier of Instrumentation cables shall make sure that the equipment’s are properly secured and packed so as to avoid any damage during transportation.

Prior to delivery, the Supplier shall submit for Company approval at least the following data:

- specific transport and handling procedure; - the exact size for mounting; - requirements for immediate installation upon the equipment arrival on site.

Adequate measures shall be taken to protect against breakage, dampness, pilfering and tampering during transportation, handling and storage.

Cable ends shall be sealed with heat-shrunk end cap immediately after testing to protect the cables from ingress of moisture.

Cables shall be shipped on non-returnable steel or wooden drums of robust construction.

Packing life shall be a minimum of 6 months.

The clearance from the perimeter of the drum flange to the outermost layer of cable shall be at least 50 mm or one cable diameter, whichever is larger.

2.3.4. Cable installation

Ducts must be designed so as to avoid obstacles and change direction by sharp angles.

All wires shall be laid in a short-circuit proof manner, i.e. such that damage to insulation by sharp edges, moving or heated parts is prevented.

Mainly, instrumentation cables shall be installed in suspended trunking.



If installation is not possible in suspended trunking, cables can be buried in trenches, dug in the ground.

Suspended cable tray shall normally be perforated type except for cables routed through covered concrete trenches/tunnels or cable rooms that shall be laid in ladder type cable trays.

Cable trunkings shall be prefabricated type made of hot dipped galvanized carbon steel. Cable bridge surface shall be flat and smooth.

The upper tray shall be covered by a solid steel (hot dipped galvanized carbon steel) tray cover as deemed necessary for the mechanical protection of the cables (shall not be provided where cables are run under ceilings or within cable tunnels).

Vertical cable ladders shall be provided with a protective cover from floor level up to a height of 1 m.

The instrument cable trays should not be loaded over 70%.

Trays for all cables shall be solidly grounded with good ground continuity.

Especially for vertical bedding, but also in all other cases, the cables shall be sustained by mounting brackets in a reasonable number of locations.

When laid buried the cables shall be protected with about 20 centimetres of sand layer, under and over the cable.

Cables laid in underground dug trenches shall be buried below the frost line regardless the class or type of cable used, but 1200 mm minimum where the route is subject to heavy traffic.

After the cables installation, at trench refilling it is recommended to place a marker tape over the cables but below the soil to highlight the presence of these cables buried for other works in that area (as outline in the figure below).

For cases that require additional protection the cables can be installed in pipeline protection. For this purpose, a drag strip is inserted into the pipe. The cable is fixed to this strip which will be replaced by cable when is pulled outside.

While pulling, the minimum bend radius shall always be respected and the maximum tensile load shall never be exceeded.

For laying cables inside buildings, cable channels should be installed under the floor.

All penetrations through building walls via cable transit plate shall be sealed after all cables have been installed. The barriers shall be of a proven and tested material. The barriers shall fulfil the following requirements: prevention of fire, smoke and corrosive



or toxic gas propagation and water penetration into other buildings or floors within the same building.

The reduction of noise requires careful planning so that, proper separation is maintained and that lower and higher levels never encircle each other or run parallel for long distances.

Intrinsically Safe and non-Intrinsically Safe cables shall be routed in separate cable trays. Where this not practicable, and both types of cable need to share the same cable tray, divider plates shall be installed to segregate the two types.

Common routing of control and power cables shall be avoided. Control cables and power cables shall be routed in separate cable trays with a minimum distance of 150 mm between them.

When electrical signals are assigned to multi pairs cables, the following signal segregation rules shall be followed:

− intrinsically safe and non-intrinsically safe signals shall be segregated as required by EN 60079-14.

− the supply and return conductor of a signal shall be contained in the same cable pair.

− segregation on the basis of cabling requirements shall be required. Example: thermocouple signals require extension cabling and thus can only be combined in one cable with signals from thermocouples of the same type.

− segregation between services is mandatory (e.g. no signal cabling for Instrumentation and Electrical in one multicore cable).

− signals for Control, Safety and Telecommunications systems (PCS, SIS, F&G, PAGA, Telecommunication) shall be run in separate cables dedicated to each system.

− analogue and binary signals shall not be run in the same cable.

As far as is practically possible and also economically, redundant bus systems shall be run in separate cables and, preferably, in different routes to maximize integrity.

Segregation on types and levels as descripted above shall be maintained in junction boxes.

At installation / mounting twisting mating connectors shall be kept to reduce the risk of interference with other signals.

The screen of the cables shall be isolated and unconnected at instrument side, and connected to earth at the other side (in marshalling/system cabinet). The cable armour shall be grounded at both sides.

Cable route defined by design shall be accessible and available. For deviations from projected cable route the agreement of the Company is required.

The contractor shall determine if environmental conditions are appropriate for methods used in cables installation.

For reasons of safety, always unroll cable by the bottom side of the reel as shown below.



At both ends, it is recommended to leave one cable loop (15-20 centimetres diameter) for reserve.

The first few meters of cable from the reels should be removed because they could easily be damaged by pulling, bending, etc. shock.

One of the goals in any cable installation is to complete the installation with as little stress as possible to the conductors themselves. All cables are provided with a carefully calculated tensile loading value, which shall never be surpassed.

The junction box is connected to the marshalling cabinet via multi-pair cable. Sufficient terminals with test sockets shall be provided in each JB.

The junction boxes shall be of wall mounted type.

No redundant signals shall be connected to the same junction box.

Cables shall not be crushed or subject to strong impact / compression. Test methods at crush, to be observed are presented in EN 50289-3.

Cables shll never be kinked or knotted.

No straight joints shall be permitted in cable runs except where the length of the cable route can be demonstrated to exceed the maximum available drum size.

All process field devices (e.g. pressure switches, temperature transmitters etc.), which are mounted inside or outside of a local instrument panel or local junction boxes, shall be connected with individual cables to the Local Instrument Panel or junction boxes by screw-type terminal.

Wires shall not be jointed or tied between terminal points. Not more than one wire shall be connected to any one-screw terminal. In case of more than one wire are necessary to be terminated multiple terminals shall be used.

All spare cores/pairs on multi core/pairs cables shall be terminated on spare terminals on the terminal blocks at both ends of the cable.

Plastic wire markers shall be used indicating the terminal strip and terminal number at both ends.

Terminals dedicated for different voltage levels shall be segregated from each other.

The distance between wiring trunks and terminals shall be sufficient for easy trouble shooting (>40mm).

2.3.5. Cable glands

Entry into instrument housings and junction boxes shall be via cable glands. They are used as a sealing and termination device to ensure that the characteristics of the enclosure which the cable enters can be maintained adequately.

Where cable glands are intended for use in a Hazardous Area or where specified, cable glands shall be certified by a recognised ATEX Testing Authority.



Cable glands on plant instruments shall preferably be located at the bottom, never at the top, to prevent ingress of water. Where cable glands are installed in the side wall of the instruments, the cables shall enter from below. Cables coming from above shall first drop to below the elevation of the gland.

The entry thread of the cable glands shall be ISO metric. Cables shall be clamped just below the cable glands to prevent excessive force on the cable gland.

2.3.6. Cable and junction boxes tagging

2.3.6.1 Cable tagging

Each cable shall be identified with proper labels attached at both ends of cables.

Plastic labels, resistant to extreme environmental exposed conditions (high temperatures and frost, ultraviolet resistant, humidity etc.) are preferred. Stainless steel labels could be also accepted.

Cable labels format shall be as follows:

C-[Instrument Tag or Junction Box / Panel Tag]-Z

Where:

C – Cable Instrument Tag – Instrument tag in the following form:

[Technical System]-[Instrument Identification Number Letters]-[Instrument Identification Number Numerals]-[Instrument Identification Number Suffix] (as per PE-D-IN-PRO-001-01-E Procedure for Numbering Instruments and Loops)

Junction Box / Panel Tag – JB / panel name, format as depicted here Z – Suffix (1, 2, 3 etc. only if there is more than one cable of the same type coming from the instrument or junction box)

The naming scheme is based on where the signal(s) originate, examples are as follows:

• A cable from an instrument to junction box shall always include the instrument tag; • A cable from a junction box to a marshalling panel shall be labelled based on the junction box tag; • A cable from switchgear to marshalling panel shall be labelled using the appropriate tag from the switchgear.

Examples:

C-20-PAi-JJB-001-1 C-10-SDi-JJB-001-1 C-79-DO-TJB-001-1 C-10-PIT-123



2.3.6.1 Junction boxes tagging

Each JB must be identified with a proper label permanently attached to the box body.

Metallic label, corrosion resistant, or resistant plastics to extreme environmental exposed conditions (high temperatures and frost, ultraviolet resistant, humidity etc.) shall be use.

Junction boxes label format shall be as follows:

AA-BPi-WJB-YYY

Where: AA – Technical System (as per Table 1 –System Coding from PE-D-IN-PRO-

001-01-E Procedure for Numbering Instruments and Loops) B – System to which the junction box belongs, e.g.:

P – PCS (Instrumentation) S – SIS F – F&G D – Data Transmission (Communications / Telecommunications etc.)

P – Junction Box Prefix, defining types of signals, e.g.: A – Analogue D – Digital S – Serial O – Optical P – Instrument Power T – Thermocouple

i – Intrinsically safe (if circuits are not IS, no character is shown) W – Circuit Type, et:

J – Instrumentation T – Telecommunication E – Electrical (e.g. Instrument power)

JB – Junction Box YYY – Junction box numerical tag number

Examples: 20-PAi-JJB-001 – System 20, Instrumentation, IS Analogue signals 10-SDi-JJB-001 – System 10, SIS, IS Digital signals 79-DO-TJB-001 – Safety System, telecoms JB (FO signals), non IS.

2.4. Quality assurance

2.4.1. General

The Vendor shall operate a quality system satisfying the provisions of ISO 9001 or agreed equivalent standard, commensurate with the goods and services provided.

Before the laying, reel / cable drums should be inspected visually for possible damage to the transport and storage (cuts, crushing, bending under the minimum allowable radius etc.).



To protect cables, in storage space shall be taken measures for tumble drums block.

When cable is stored outside, a cap must be placed at both ends to avoid water infiltration.

Indoor cables must not be stored outside to prevent water infiltration and UV damages.

Storage temperature range shall be specified for each cable/ reel and must be respected.

If several reels are stored at the same place, measures should be taken so that flanges of a reel don’t collide with cable of another reel.

Never install a cable if temperature is below 5°C. In cold environment the cable sheaths are stiffer and more sensitive to bending and pulling.

2.4.2. Inspections during manufacturing

The Company reserves the right to carry out at least one inspection during manufacturing.

2.4.3. Manufacturer/Supplier’s internal test

Tests shall be made to ensure that the performance and operating characteristics are satisfactory and to determine whether or not all requirements have been met.

The schedule and program of testing and inspection shall be arranged between the Supplier and the Contractor/Company.

The Supplier shall give the Company at least 2 weeks advance notice of the tests start and the Company may request the cancellation of some tests if certified results of such tests can be made available to the Company as evidence that such tests have been successfully carried out.

Approval by the Inspector shall not relieve the Supplier of his responsibilities under the terms of purchase order and this document.

The Company reserves the right, as the case may be, to witness all the final tests on cables, especially the flame retardant and fire resistance tests.

At least two cable sizes shall be subject to this test.

Supplier is responsible for, and must perform himself, the following: - Inspections, examinations and tests detailed in specifications and in applicable documents. - Inspections, examinations and tests required by the rules and specific standards up-to-date; - Any other inspection, examination or specific test of the Supplier that is considered to be necessary to ensure the requirements of applicable specifications and contract documents.

Inspection and test reports shall be written and submitted to the Company after they are completed.

On demand, the Supplier must repeat the inspection and/or testing of any component.

The relevant internal test certificate shall cover each type of cable. Also all test perform shall be certified by the appropriate documentation.



Each internal test certificate shall contain as more details as possible particularly concerning the checks.

2.4.4. Warranty and guarantee period

The Supplier shall provide an overall warranty. The final terms and duration of the warranty shall be agreed during the bid stage.

The Supplier shall have the final and total responsibility for the design and the performance of all equipment as a whole.

The defect liability period should commence from the first day that each unit has been placed in normal use or from the date the Supplier has demonstrated each unit’s capacity to meet all the requirements of this Specification.

The defect liability period shall be extended by the number of days that any of the units were inoperable due to defects that occurred during the defect liability period.

The warranty shall include all materials of construction, parts and workmanship.

The Supplier shall be responsible for all costs relating to the making good any warranty repairs, including travel, time and accommodation of field service representatives and airfreight costs for parts and materials.

The Supplier shall provide a guarantee on all units supplied. The guarantee shall stipulate that the units shall be capable of meeting all the required conditions specified in this document.

2.5. Documentation

Documentation shall cover: - All the details pertaining to equipment parts; - Installation, maintenance and handling instructions; - Flame resistance/retardant certificates; - Data sheets - Cross-sectional view of each cable type showing the material construction and

dimensions; - Documented evidence that type tests have been performed at the

manufacturers’ works or at a recognized testing authority to verify that all cable designs offered can perform to the design standards.

The Supplier’s documents shall be sharp, clear, legible and suitable for electronic file, as indicated below, and, at least, shall contain the following information:

- Drawing identification and revision number (on all sheets); - Title and/or system identification; - Equipment tag numbers; - Purchase Order number.

Documentation shall be consistent from one document to the others. Documents shall be fully indexed and cross-referenced.

The following documents shall be viewed / edited with: - Data Sheet: Adobe Reader / MS Office (Excel / Word) - Lists: Adobe Reader / MS Office (Excel / Word) - Technical Specifications: Adobe Reader / MS Word



- Reports: Adobe Reader / MS Word - Drawings: Adobe Reader / AutoCAD 2002 or later release

3. Internal Reference Links

Petrom philosophies:EP FA IN 01 PH Philosophy for Instrumentation and Instrument Air PE-D-IN-PRO-001-01-E Procedure for Numbering Instruments and Loops PE-D-IN-PHL-003-03-E Philosophy for Process Control Systems PE-D-IN-PHL-005-03-E Philosophy for Automation, Telecommunication and

Security Systems PE-D-IN-PHL-004-03-E Philosophy for Safety Instrumented Systems - Wellhead

Protection systems EP FA AD 02 PH Guidelines for the use of standards

Order of precedence: The order of precedence of Codes and Standards mentioned above is defined in the document EP FA AD 02 PH – Philosophy for Use of Standard.

4. External Reference Links

The applicable reference regulations and standards for instrumentation cables shall be the latest edition, including the amendments.

Directive 2004/108/CE Council Directive to approximate the laws of member states relating to electromagnetic compatibility - EMC ("Electromagnetic Compatibility")

GD no. 982/2007 concerning electromagnetic compatibility

ASTM D2843 Standard Test Method for Density of Smoke from the Burning or Decomposition of Plastics

BSI PAS 5308 Instrumentation cables

EN 10257-1 Zinc or zinc alloy coated non-alloy steel wire for armouring either power cables or telecommunication cables - Part 1: Land cables

EN 60332 Tests on electric cables under fire conditions.

EN 60228 Conductors for insulated cables

EN 61000 Electromagnetic compatibility (EMC)

EN 50290 Communication cables Specifications for test methods. Mechanical test methods

EN 50288 Multi-element metallic cables used in analogue and digital communication and control

EN 50289 Communication cables - Specifications for test methods. Environmental test methods

EN 60584 Thermocouples

EN 60079 series Electrical apparatus for explosive gas atmospheres



EN 60079-14 Explosive atmospheres - Part 14: Electrical installations design, selection and erection

EN 60751 Industrial platinum resistance thermometers and platinum temperature sensors

EN 60793 Optical fibres

EN 60794 Optical fibre cables

EN 60811 Insulating and sheathing materials of electric and optical cables - Common test methods

EN 60874 Fibre optic interconnecting devices and passive components

IEC 60092 Electrical installations in ships

IEC 60304 Standard colours for insulation for low-frequency cables and wire

IEC 60331 Tests for electric cables under fire conditions - Circuit integrity

IEC 60364 Low voltage electrical installations

IEC 60754 Tests on gases evolved during combustion of electric cables.

IEC 61158 Digital data communication for measurement and control – Fieldbus for use in industrial control systems

IEC 61537 Cable management - Cable tray systems and cable ladder systems

ISO 80000-1 Quantities and units

EN 60445 Basic and safety principles for man-machine interface, marking and identification - Identification of equipment terminals, conductor terminations and conductors

ITU-T G.652 Transmission media characteristics - Optical fibre cables. Characteristics of a single-mode optical fibre cable

5. Obsolete Regulations

Not applicable

6. Certification Standards

Not applicable

7. Terms & Abbreviations

Definitions:

Company OMV Petrom S.A. – E&P

Contractor Company / society responsible for EPCC or part of it

Manufacturer/Supplier party that manufactures or supplies equipment and services to fulfil the tasks specified by the customer



Shall The word “shall" is used where a provision is mandatory

Should The word "should" is used where a solution is preferred

May The word “may” is used where alternatives are equally acceptable

The following abbreviations are relevant to this document:

AC Alternating current API American Petroleum Institute ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials BS British Standard CE European ID for conformity

Short term of Conformité Européenne DC Direct current E&P Exploration and Production EMC Electromagnetic compatibility EN European Norm F&G Fire and Gas Detection System HD Harmonization Document (type of CENELEC standardization document) IEC International Electro-technical Commission I.S. Intrinsic Safety ISO International Standards Organization PCS Process Control System PVC Polyvinyl chloride RFI Radio Frequency Interference SI International System SIS Safety Instrumented System SR Romanian Standard UV Ultraviolet V AC Volts alternating current V DC Volts direct current XLPE Cross-linked polyethylene

8. Keywords / Search Criteria

Instrumentation cables, signal cable, fibre optic, tagging

9. Annexes

Annex A - Basic cable types and coding cable type

Annex B - FO technical parameters

10. Amendments from Previous Versions

Not applicable (new document)



11. Transitory provisions

Not applicable.



Annex A

Basic cable types and coding cable type

A.1 Single twisted pair screened

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Two insulated conductors uniformly twisted into a pair Lay of twist: 40 to 60 mm Insulation: XLPE (90 °C) Screen: Aluminium screen on polyester base with drain wire Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: analogue and digital signals (including solenoid valves)

A.2 Single twisted triple screened

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Three insulated conductors uniformly twisted into a pair Lay of twist: 40 to 60 mm Insulation: XLPE (90 °C) Screen: Aluminium screen on polyester base with drain wire Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: analogue signals

A.3 Multi-pair with overall screen

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Multicore cable of twisted pairs Lay of twist: 40 to 60 mm Insulation: XLPE (90 °C) Individual Screen: None Overall Screen: Aluminium screen on polyester base with drain wire Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: digital signals (including solenoid valves)

A.4 Multi-pair with overall and individual screen

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Multicore cable of twisted pairs Lay of twist: 40 to 60 mm Insulation: XLPE (90 °C) Individual Screen: Aluminium screen on polyester base with drain wire Overall Screen: Aluminium screen on polyester base with drain wire Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: analogue signals



A.5 Multi-triple with overall and individual screen

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Multicore cable of twisted triples Lay of twist: 40 to 60 mm Insulation: XLPE (90 °C) Individual Screen: Aluminium screen on polyester base with drain wire Overall Screen: Aluminium screen on polyester base with drain wire Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: analogue signals

A.6 Multicore cable of untwisted conductors without screen

Conductors: stranded plain annealed copper, 7 strands minimum Assembly: Multicore of stranded wires, untwisted Insulation: XLPE (90 °C) Individual Screen: None Overall Screen: None Inner sheath/bedding: PVC Outer sheath: PVC resistant to hydrocarbons and UV action Applications: power supply systems

A.7 Cable type coding table

All cables shall be described by the following code: ABB-C-D-E-F

A (type) = 1; type 1 cable (single twisted pair screened) 2; type 2 cable (single twisted triple screened) 3; type 3 cable (multi-pair with overall shield only) 4; type 4 cable (multi-pair with overall and individual screen) 5; type 5 cable (multi-triple with overall and individual screen) 6; type 6 cable (multicore cable of untwisted stranded wires without screen)

BB (no. of pairs/triples/conductors) = 01; single pair/triple/core 02; two pairs/triples/core 04; four pairs/triples/core 06; six pairs/triples/core 10; ten pairs/triples/core 16; sixteen pairs/triples/core 20; twenty pairs/triples/core

C (flame retardant/ fire resistant) = 1; flame retardant SR EN 60332-3(for PCS / SIS) 2; fire resistant IEC 60331(for F&G)

D (outer sheath colour) = .1; light blue (Intrinsically Safe circuits) .2; red RAL3000 (F&G circuits) .3; grey (non-IS and non-F&G circuits) .4; black (power supply systems)



E (armouring) = 0; without armouring 1; galvanized steel wire armouring

F (size of conductor) = 1; 1 mm2

2; 1.5 mm2

3; 2.5 mm2



Annex B

FO technical parameters