w-m-ss-010[1]

0 02-02-2002 Approved Issuerev. date Description/issued for prepared authorised

client: ADWEAproject: STANDARD SPECIFICATIONS FOR WATER WORKStitle: SPECIFICATION FOR FIRE PROTECTION SYSTEM

tender: project: document: W-M-SS-010 rev: 0 sheet: 1 of: 43

SPECIFICATION FOR FIRE

PROTECTION SYSTEM

Client ADWEAProject: STANDARD SPECIFICATIONS FOR WATER WORKSTitle: SPECIFICATION FOR FIRE PROTECTION SYSTEM


Table of Contents page

1. SCOPE OF WORKS..............................................................................4

2. APPLICABLE CODES AND STANDARDS ..........................................5

3. SITE CONDITIONS................................................................................8

4. DESIGN CONSIDERATIONS ................................................................8

5. AUTOMATIC CO2 FIRE FIGHTING SYSTEM FOR ELECTRICALROOMS .................................................................................................95.1 Design Considerations ................................................................95.2 Fabrication & Requirements ........................................................9

6. FIRE PUMP SKID, RINGMAIN AND ASSOCIATEDACCESSORIES...................................................................................116.1 General......................................................................................116.2 Design Considerations ..............................................................126.3 Scope Of Supply........................................................................126.4 Fabrication Requirements For Main Fire Water Pumps

(Electrical & Diesel Operated) ...................................................136.5 Fabrication Requirements for Jockey Pump..............................146.6 Fabrication Requirements for Diesel Engine Driver for

Main Fire Pump .........................................................................146.7 Engine Fuel System ..................................................................166.8 Cooling System .........................................................................166.9 Starting System .........................................................................166.10 Exhaust System.........................................................................176.11 Diesel Engine Testing/Certification............................................176.12 Electric Motors for Electrically Driver Fire Pumps......................176.13 Controllers for Electrical and Diesel Operated Fire Pumps .......176.14 Operation of Electric Fire Pumps Controller ..............................186.15 Operation of Diesel Fire Pumps Controller ................................186.16 Fire Water Ring Main.................................................................186.17 Fire Hydrants / Stand Pipes And Hose Reels............................19

7. AUTOMATIC SPRINKLER SYSTEM ..................................................207.1 Design Consideration ................................................................207.2 Sprinkler Heads.........................................................................217.3 Pipework and Fittings Above Ground ........................................217.4 Block Plan .................................................................................21

8. FIRE EXTINGUISHERS.......................................................................228.1 Portable Fire Extinguishers .......................................................228.2 Mobile Fire Extinguishers ..........................................................23



9. FIRE DETECTION AND ALARM SYSTEMS.......................................249.1 General......................................................................................249.2 Fire Alarm Control and Indication Panel ....................................259.3 Ionisation Smoke Detectors.......................................................299.4 Photoelectric Smoke Detectors .................................................299.5 Heat Detectors...........................................................................309.6 Manual Fire Alarm Call Points ...................................................309.7 HVAC Duct Smoke Detectors....................................................309.8 Fire Alarm Sounder ...................................................................319.9 Flashing Beacon........................................................................319.10 Wiring ........................................................................................319.11 Radio & Electrical Interference ..................................................319.12 Installation .................................................................................319.13 Fire Stopping For Cable Entries ................................................31

10. INSPECTION AND TESTING ..............................................................3210.1 Fire Water Pump Skid ...............................................................3210.2 Fire Water Ring Main And Associated Accessories...................3710.3 Automatic Carbon Dioxide System............................................3810.4 Automatic Water Sprinkler System............................................3810.5 Fire Alarm and Detection System..............................................3810.6 Manufacturing Data Record Books............................................39

11. SPARE PARTS....................................................................................39

12. SPECIAL TOOLS & TACKLES...........................................................41

13. PACKING AND SHIPMENT ................................................................42

14. VENDOR DOCUMENTATION .............................................................42



1. SCOPE OF WORKS

The CONTRACTOR shall design, manufacture, supply, construct, install, test andcommission complete fire protection system inclusive of all supervision, labour, material,equipment, machinery, plant and all other items necessary to complete the required works.The fire protection installations shall comply with the latest NFPA (National Fire ProtectionAssociation – U.S.A.) guidelines. The CONTRACTOR shall submit full details of the proposedscheme for ADWEA/ENGINEER approval.

The fire protection systems shall cover the following unless mentioned specifically otherwise:

- Automatic CO2 fire fighting system for rooms housing electrical equipment.

- Portable and trolley mounted fire extinguishers.

- Fire water system comprising firewater pump skid, hydrants, hose reels, sprinklers andpiping.

- Fire detection and alarm system complete with manual call points.

All equipment supplied under this section shall be manufactured by a manufacturer regularlyengaged in the manufacture & supply of fire protection equipment. It shall essentially be aduplicate of equipment that has been in satisfactory use for not less than 5 years prior to thebid date and be supported by an approved service organisation capable of carrying outregular inspection and maintenance of fire protection systems.

The Scope of CONTRACTOR's activities shall include, but not be limited to the following:

- Complete identification of system requirements in terms of features and components.

- Calculations of required capacities, sizes/dimensions etc., according to applicable codesand standards.

- Detailed design, calculations, specifications, drawings, etc. These calculations,specifications and drawings shall be submitted to ADWEA/Engineer for approval.

- Preparation and issue of detailed design and field drawings.

- Preparation and qualification of welding procedures.

- Preparation of necessary procedures/methods for transportation, receipt, handling,movement for final locations, erection in position and installation etc.

- Preparation and issue of testing procedures and details to be applied on this contract.

- Provide as-built information, marked-up drawings, manuals, etc.

- Manufacture, shop inspection and testing, painting of the equipment.

- Packing, receipt, delivery, handling, transport etc. of all materials and equipment.



- Protection of existing facilities/installation etc.

- Actual installation of the system/equipment being supplied.

Tieing-in, testing and commissioning of the installed systems.

Supply, installation, testing and commissioning of all safety functions and general safetyfacilities as per standards/codes applicable and subject to ADWEA/ENGINEER approval.The safety functions shall include all tripping and shutdown requirements as stipulated byADWEA/ENGINEER.

The safety facilities shall include but not be limited to safety/exit signs, equipment, labellingand instructions in Arabic and English.

- All related civil and structural works.

- Scaffolding and cranage.

- Installation of power supply cables, control panels.

- Electrical and control wiring.

- Any other item not specified above, but necessary for completion of the works andinstallations.

- All necessary spare parts.

This specification covers the minimum requirements for the design, manufacture, supply,installation and testing of a complete fire protection system for all areas included in thisproject.

The CONTRACTOR shall be responsible for carrying out a detailed site study, preparation ofdetailed design drawings and providing technical data of the various equipment toADWEA/ENGINEER for approval.

2. APPLICABLE CODES AND STANDARDS

Only the latest issue of the under mentioned documents shall be applicable:

S. No. Document No. Document Title

1. National Fire Protection Association;NFPA-10

Standard for Portable Fire Extinguishers.


Standard on Carbon DioxideExtinguishing Systems.


Standard for Installation of SprinklerSystem





Standard for Installation of CentrifugalFire Pumps.


Standard for the Installation of PrivateFire Service Mains and theirAppurtenances.


National Electrical Code.

7. NFPA-72 Standard for Protective SignallingSystems.

8. NFPA-72E Standard for Automatic Fire Detectors

9. NFPA-291 Recommended Practice for Fire FlowTesting and Marking of Hydrants.

10. ASME B31.1 Power Piping Code

11. ISO 10474 Steel and Steel Products InspectionDocuments

British Standard Institution (BSI)


1. BS 5839 : Part 1 Fire Detection and Alarm Systems for Buildings; Code ofPractice for System Design, Installation & Servicing

2. BS 5839 : Part 2 Specification for Manual Call Points

3. BS 5839 : Part 3 Specification for Automatic Release Mechanisms forCertain Fire Protection Equipment

4. BS EN 54-2 and -4 Specification for Control and Indicating Equipment(Supercedes BS 5839 : Part 4)

5. BS 5839 : Part 5 Specification for Optical Beam Smoke Detectors

6. BS 5839 : Part 6 Code of Practice for the Design and installation of FireDetection & Alarm System in dwellings

7. BS EN 671-1 Specification for Hose Reels with Semi Rigid Hose



8. BS 5306 : Part 1 Specification for Hydrant Systems, Hose Reels & FoamInlets

9. BS 5306 : Part 2 Specification for Sprinkler Systems

10. BS 5306 : Part 3/8 Code of Practice for Selection, Installation andMaintenance of Portable Fire Extinguishers

11. BS 5306 : Part 4 Specification for Carbon Dioxide Systems

12 BS 5445 : Part 5 Specification for Heat Sensitive Detectors

13. BS 5445 : Part 7 Specification for Point-type Smoke Detectors UsingScattered Light, Transmitted Light or Ionisation

14. BS 5445 : Part 8 Specification for High Temperature Heat Detectors

15. BS 5445 : Part 9 Methods of Tests of Sensitivity to Fire

16. BS 6266 Code of Practice for Fire Protection for Electronic DataProcessing Installation

17. BS 7863 Recommendations for colour coding to indicate theextinguishing media contained in portable fireextinguishers.

18. BS EN3 Specification for Portable Fire Extinguishers

19. BS 5304 Codes of Practice for Safety of Machinery (withdrawn)

20. BS 5514 Diesel Engines

21. BS 5514 Reciprocating Internal Combustion EnginesPerformance

22. BS 5514 : Part 1 Specification for Standard Reference Conditions andDeclarations of Power, Fuel Consumption andLubricating Oil Consumption

23. BS 5514 : Part 2 Tests Methods

24. BS 5514 : Part 3 Specification for Test Measurements

25. BS 5514 : Part 4 Speed Governing

26. BS 5514 : Part 5 Torsional Vibrations



27. BS 5514 : Part 6 Specification for Overspeed Protection

28. BS 5514 : Part 7 Specification for Codes for Engine Power

Provision of all local and national mandatory codes shall be considered as part of thisspecification.

3. SITE CONDITIONS

The fire protection system and associated systems shall be designed and suitable foroperation in the climatic conditions of the United Arab Emirates.

The CONTRACTOR is referred to the General Technical Requirements, which details theclimatic conditions that may be encountered at site. However the offered equipment shall besuitable for the below mentioned conditions as a minimum:-

- Maximum ambient conditions in the shade : 52ºC

- Minimum ambient temperature : 1ºC

- Maximum ambient relative humidity : 100%

4. DESIGN CONSIDERATIONS

The CONTRACTOR's proposal shall be based upon the standards mentioned in thespecifications. The CONTRACTOR may propose equipment in accordance with otherrelevant published standards only if these standards exceed the one's specified. In such casethe CONTRACTOR shall submit copies of such alternative standards for ADWEA/ENGINEERapproval.

All fire protection equipment shall be designed & provided in accordance with the appropriateNational Fire Codes Published by the National Fire Protection Association unless specificallymentioned otherwise.

If the CONTRACTOR proposes the use of fire protection system for which no suitablestandard exists, the CONTRACTOR shall then submit full technical details and the use ofsuch system shall be subject to the approval of ADWEA/ENGINEER.

All fire protection equipment shall be of types approved and listed by recognised approvalauthorities.

Approval and listing by the following organisation shall be acceptable:

i) Underwriters Laboratories Inc.

ii) Factory Mutual Engineering Corporation.

iii) Loss Prevention Certification Board.

iv) V.D.S. (German Standard).



v) LPC, LPCB – Loss Prevention Committee.

5. AUTOMATIC CO2 FIRE FIGHTING SYSTEM FOR ELECTRICAL ROOMS

5.1 Design Considerations

The automatic CO2 fire fighting system shall be used for protection of electrical equipment inL.V/M.V rooms and also for protection of instrumentation and control equipment in controlrooms inclusive of all telecommunication equipment.

The CO2 fire extinguishing system shall be through total flooding and deep seating of therespective areas as per table 2.4.2.1 of NFPA-12 and shall comply which the requirements ofNFPA-12

The system shall be capable of automatic detection and automatic/manual actuation.

The system shall be capable of extinguishing fires in class A, B and C hazards.

The CO2 agent shall dilute the oxygen content of the protected hazard to a point where it willnot support combustion.

The automatic CO2 fire fighting system could be supplied as modular system, each protectingonly one risk area or system using a centralised supply of extinguishing agent to protect anumber of risks with 100% reserve CO2 cylinders on line.

The proposed manufacturer of the system components shall have a minimum of 10 yearsexperience in the manufacture and design of fire suppression systems and related firedetection and control equipment.

All materials related to the system shall be stored in well ventilated area at temperature notexceeding 52ºC.

N2 pilot operated CO2 systems shall not be acceptable.

5.2 Fabrication & Requirements

The CO2 Cylinders shall be supplied suitable for tropical fill which shall take into account anycompensation measures necessary to accommodate the site ambient temperature variations.The cylinders shall be of seamless steel construction and equipped with pressure differentialtype discharge valve. The valve shall be constructed of brass and anodised aluminium and becapable of withstanding a maximum pressure of 6000 psi. The valve should contain a safetypressure relief device. The cylinders shall be protected with corrosion protection paintingsystem.

The CO2 cylinders provided with the system shall be wall mounted on a rack or free floorstanding in a rack as appropriate. The cylinders are to be of the refillable type and be able tobe handled individually by one person.



The CO2 extinguishing agent shall be clean, dry, non-corrosive, non-damaging and non-deteriorating chemical meeting the requirements outlined in NFPA standard No. 12.

The CO2 system shall be provided with weight loss monitoring facility. The CO2 system shallbe provided with full monitoring and change-over system from main to reserve.

The CO2 system shall have its own dedicated control panel/module/circuitry for eachprotected zone which shall interface with the fire alarm control and indication panel.

The CO2 cylinders shall be fitted with electric solenoid actuator and mechanical drop weightmechanism with adjustable time delay. The actuator shall interface through a compatiblecontrol panel by the system manufacturer. The actuator shall not require any special tools forresetting after operation.

Manual release of the CO2 system shall be by a Release Unit located at the entry to theprotected area. The manual release of the CO2 system shall initiate an alarm of Fire on thefire alarm system for the Fire Safety Zone protected by the CO2 system.

The Manual Release unit shall be of the type requiring two distinct and separate actions fortheir operation (e.g. break glass and pull handle) and shall be coloured yellow. On or adjacentto the unit shall be the wording "CO2 Fire Extinguishing System - Manual Release".

Each CO2 gas protection area shall be provided with status indicator installed at all entrydoors. Features of status shall be as follows:-

- To be provided with change-over switch to change from auto mode to manual mode and vice versa

- Dual green LED's with label " CO2 SYSTEM IN AUTO MODE - DO NOT ENTER THEROOM"

- Dual red LED's with label " CO2 GAS DISCHARGE - DO NOT ENTER THE ROOM".

The status of the CO2 system shall be repeated at all fire control/alarm panels, respectiverooms and other status units. Changing of the CO2 system mode back to auto shall only bepossible from the same status unit used to set the system in manual mode.

Check valves shall be provided on all systems utilising a connected reserve supply. This willprevent the reserve bank of cylinders from being activated when the main bank discharges.The check valve shall be of "in line flow" design for minimal flow restriction during discharge.

Mechanical locking device for maintenance shall be made available.

The nozzles shall be designed to direct the discharge of CO2 in liquid or gaseous state. Thenozzles shall be constructed of corrosion resistant material.

The distribution piping shall meet the requirements of ASTM A106. Sizing calculations shallbe submitted for ADWEA/ENGINEER approval.



The control system shall be such that automatic control will be required to activate/co-ordinatethe single zone/multiple zones of fixed carbon dioxide systems. The control system shall beused to operate the fire suppression system based on inputs received from approval detectiondevices. Detection circuits shall be configured using cross-zone, verified detection or singleinput release concepts.

The control system shall have an adjustable pre discharge time delay circuit to allowevacuation of the protected area prior to the discharge of carbon dioxide.

The control system shall be micro-processor based and field programmable.

The control system shall not be addressable.

A "CO2 Discharge" sounder having a sound output of 100dB (A) at 1 metre and a sounddistinctive from any other in the location, shall be provided in the protected area to warnpersonnel of the CO2 gas discharge. The sounders shall be initiated for the duration of thedischarge time and thereafter until the system is manually silenced.

Power supplies for the CO2 system shall be taken from the same power supply as the firealarm control and Indication panel.

The control system shall be U.L. listed and F.M. approved and shall comply with allrequirements of NFPA Standards 12, 71, 72A & 72D.

6. FIRE PUMP SKID, RINGMAIN AND ASSOCIATED ACCESSORIES

6.1 General

This specification covers the minimum requirements for design, manufacture, and testing atmanufacturer's works, supply, installation, site testing, commissioning and acceptance testingat site, of the fire water pump skid to be supplied under the terms of the contract. Thisspecification shall be read in conjunction with the relevant data sheets, drawings and otherrelevant sections of the tender documents.

Compliance with this specification shall bot relieve the CONTRACTOR from any of hiscontractual obligations and responsibilities towards fulfilling the performance requirements.

No deviation from this specification shall be allowed, unless specifically approved in writing byADWEA/ENGINEER.

The offered pump model shall be from the existing production range of the manufacturer.

The CONTRACTOR shall furnish with the tender, a comprehensive reference list for thequoted model, giving the following information as a minimum:

- Name and address of client

- Model supplied

- Specific operating range



- Material of construction of impeller, casing, shaft, sleeves and wear rings

- Test curves for the shop tests, duly certified and stamped by the inspecting authority

- Year of supply

- Year of commissioning

6.2 Design Considerations

The fire skid package shall be supplied by the CONTRACTOR as a comprehensiveinstallation completely pre-wired, pre-piped and fully operational for the intended service. Allinstruments and components with moving parts shall be easily and safely accessible forregular operational checks and running maintenance without any disassembly or otherpreparation. Overhaul maintenance and removal access shall be safe, adequate in terms ofclearances to permit needed disassembly(ies) but without extensive disassembly to accessthe element being overhauled. All equipment shall be suitable for indoor location. TheCONTRACTOR shall consider full pre-assembly for the package modules. All equipmentshall be in compliance with the requirements of NFPA 20.

The package components shall include all accessories and auxiliaries to constitute acomplete unit. All items included shall be selected from qualified experienced manufacturers,which shall be subject to review and approval by ADWEA/ENGINEER. Supply shall be inaccordance with this document, data sheets and other applicable documents.

The design standard shall be to NFPA 20. Factory Mutual (FM) approval or UL listing shall beapplicable for these pumps and other major components of the package.

The package shall be provided with all safety and other measures, to ensure smooth andtrouble free operation of the package.

The package and its components shall be provided with proper and adequate lifting facilities(hooks/eye bolts etc.)

The package shall be provided with drainage connections for oil/water spill-overs etc.

The VENDOR shall carry out a 'torsional vibration analysis" of the complete unit and shallsubmit to ADWEA/ENGINEER for review. Each driver, coupling, driving unit system shall beso designed to ensure that the complete installation starts, operates and stops free fromtorsional vibration and oscillation. The first lateral and torsional critical speeds for thecomplete train shall be at least 20% above the maximum operating speed.

6.3 Scope Of Supply

The CONTRACTOR's scope of supply shall include for all equipment, items and materials asdetailed in the applicable data sheets, specifications and drawings.



The fire water pump skid (package) shall include (but not be limited to) the following:

- 1 No. electrically driven, horizontal, split case centrifugal pump.

- 1 No. diesel driven, horizontal, split case centrifugal pump.

- 1 No. vertical multistage centrifugal jockey pump.

- 1 No. suitably sized diaphragm type pressure vessel suitable for the above.

- Auxiliary piping as required. The piping material shall be carbon steel fusion bondedepoxy coated, internally and externally to 300 microns DFT.

- Safety valves.

- Automatic air release valves.

- Suction/discharge pressure gauges.

- Electric motor driver for main and jockey pumps with space heater and terminal box withcable glands.

- Coupling and guards for electrically driven pumps.

- Fire pump controllers for electrically driven pumps complete with alarm monitoring andmounted in a sealed cabinet with space heater.

- Diesel engine driver including complete inlet and exhaust system, starting systems andcooling circuit with heat exchanger or radiator.

- Drive shaft with coupling and guard.

- Base plate(s).

- Fuel oil day tank with fuel supply/return piping, accessories and appurtenance, such aslevel gauge, level switch and support.

- Fire pump controller for diesel driven set with back-up power supply from batteriescomplete with charger, engine mounted alternator and space heater.

6.4 Fabrication Requirements For Main Fire Water Pumps (Electrical &Diesel Operated)

The design, testing and installation standards for the pump package shall be strictly inaccordance with the requirements called for in the National Fire Protection AssociationStandard NFPA 20 for Centrifugal Fire Pumps and have Factory Mutual (FM) approval or ULListing.

The pumps shall be horizontal, split case centrifugal pumps.



The suction/delivery branches shall be flanged and drilled in accordance with the data sheets.

The material of construction for the different pump components shall be as indicated on thedata sheets.

The pump design shall allow for easy removal of the bearings and the rotating elementswithout disturbing the discharge pipework.

The duty point for the main fire water pumps and nominal speed at rated duty shall be asindicated on the date sheets.

The performance characteristic of the pump shall be such that it produces not less than 150%of its rated capacity at not less than 65% of the total rated head. The shut off head shall notexceed 140% of the rated head. The curve between shut-off and operating point shallpreferably be as flat as possible.

6.5 Fabrication Requirements for Jockey Pump

The jockey pump shall be vertical multistage centrifugal type.

The suction/delivery branches shall be flanged and drilled in accordance with the data sheets.

The duty point for the jockey pump and the nominal speed at rated duty should be asindicated on the data sheets.

The material of construction for the jockey pump shall be 316 stainless steel for impellers,shaft and guiding vanes and cast iron for the casing.

The pump shall generally comply with the requirements of NFPA 20.

6.6 Fabrication Requirements for Diesel Engine Driver for Main Fire Pump

The diesel engine shall generally comply with the codes and standards specified in clause 2.0of this specifications.

The design, testing and installation standards for the pump and driver package shall bestrictly in accordance with the requirements called for in NFPA 20 for centrifugal fire pumpsand have Factory Mutual (FM) approval or UL Listing.

The complete assembled diesel engine driven fire pump set shall fully comply with therequirements of NFPA 20.

The diesel engine shall be a completely self conditioned horizontally mounted unit comprisingbut not limited to the following:

- Air cleaner

- Lubricating oil filter

- Fuel filter



- 12/24 volt starter motor

- Contractors – manually operable

- 12/24 volt charging alternator

- Heat exchanger/radiator (as applicable)

- Torsional vibration damper

- Alternator belt guard

- Flywheel housing

- Flywheel stub shaft

- Exhaust manifold(s) with flame arrestor at the end

- Lubricating oil cooler

- Jacket water heater (if reqd.)

- Jacket water centrifugal pump (if reqd.)

- Day tank for diesel, with hold up capacity for minimum 8 hours operation

- Drip tray under entire diesel engine.

The following instruments shall be provided and mounted on the engine as a minimum:

- Governer

- Overspeed switch

- Tachometer

- Water temperature gauge

- Lubricating oil pressure gauge

- Oil pressure switch

- Vibration monitoring equipment & controls

- Water temperature switch

- Casing temperature switch

The electrical connections shall be wired to the controller for the diesel driven fire pump.



6.7 Engine Fuel System

A fuel float (surge) tank with adequate capacity to provide twenty four (24) hours operationunder full load shall be supplied with the diesel engine along with its interconnectingpiping/hoses. Facilities shall be provided for the convenient filling of the service tank.

The following accessories to be supplied:

- Inspection hatch on top surface of tank

- Breather with flame arrestor

- Filling connection with plug

- Separate flanged feed and return connections

- Valved drain connection

- Sight gauge

- High and low level switches connected to fire pump controller.

The fuel lines shall be flame resistant flexible hoses for connection to the engine. These shallbe no shut off valve in the fuel return line to the tank.

6.8 Cooling System

The engine cooling system shall be of the closed circuit type, including a heat exchanger,engine driven circulating pump and jacket temperature regulating device.

As an alternative, closed circuit cooling with radiator can be considered, if the model hasFM/UL listing with radiators.

The heat exchanger shall be potable water/heat exchanger, utilising potable water from thepump discharge or air (radiator) type, as applicable.

6.9 Starting System

The 12/24V dc starting system shall be provided by means of lead acid batteries with batterychargers. The system shall be supplied as part of the controller for the diesel operated firepump. Each battery shall be capable of cranking the engine through a 6 minutes cycle of 15seconds cranking followed by 15 seconds rest in 12 consecutive cycles.

The engine shall have two forms for charging the batteries, one shall be the alternator and theother shall be an automatically controlled charger unit in accordance with NFPA 20.



6.10 Exhaust System

A complete exhaust system (fully insulated) shall be provided with flame arrestor and anefficient residential silencer and sufficient pipework to enable the exhaust gases to bedischarged to the outside of the pumphouse.

Minimum 30 m of flexible exhaust pipe in SS 316 material shall also be supplied by theCONTRACTOR. Flame arrestor to be provided at the end of exhaust pipe.

Flexible or corrugated connections shall be provided between the engine and the exhaustpipework.

The silencer fitted in the system shall ensure that the noise level measured one (1) metrefrom the engine shall not exceed 90 dB(A).

6.11 Diesel Engine Testing/Certification

The pump manufacturer shall provide test certificates/certification that the diesel engineprovided with the pump package fully complies with the requirements and duty called for inNFPA 20.

6.12 Electric Motors for Electrically Driver Fire Pumps

The electrically driven fire pumps (main & jockey) shall be directly driven by suitably ratedtotally enclosed fan cooled electric motors. The motors shall comply with the requirements ofLow Voltage Squirrel Cage Induction Motors.

The motors for the fire pumps shall also comply with the requirements of NFPA 20.

6.13 Controllers for Electrical and Diesel Operated Fire Pumps

The CONTRACTOR shall supply, install, test and commission controllers for electricaloperated main and jockey pumps and for the diesel operated main fire pump. TheCONTRACTOR shall ensure that all items of equipment and/or materials are provided andinstalled to give complete and fully operational system.

In general, the controller units shall comply with all requirements of the latest edition of NFPA20 (National Fire Protection Association) code for centrifugal pumps.

The controllers shall have visible and audible alarms to indicate that the system is inautomatic mode. The controllers shall be fitted with a sequential timing device to prevent anyone pump starting simultaneously with another pump.

The system shall include remote indication equipment in accordance with NFPA 20 to belocated with the main fire alarm control panel.

The controllers shall be listed or approved by one of the following:

- Under Writers Laboratories Inc.



- Under Writers Laboratories of Canada

- New York Board of Standards and Appeals.

- Factory Mutual Research Corp.

- Canadian Standards Association.

The controller shall bear the labels of UL/ULC/CSA/FM or NYB of S and A as applicable.

The CONTRACTOR shall submit complete details of the proposed controllers forADWEA/ENGINEER approval.

6.14 Operation of Electric Fire Pumps Controller

The controller shall start the fire pump automatically on receipt of a signal indicating pressuredrop in the fire protection system and the pump will continue to run until shutdown manually.Automatic operation may also be initiated by a signal from other sources like remote startsignal.

The initiation circuit should be of the "fail safe" design, arranged to start the fire pump on theopening of the pressure switch contact/loss of normally closed signal.

Normal motor shutdown shall be achieved by a stop push button mounted on the front of theenclosure but will not stop the motor while the initiation signal is present. To stop the motor inan emergency situation, the vendor shall provide a mode selector switch. An override manualstart facility should be provided in this selector switch. This "Emergency ManualStart/Off/Auto" selector switch shall be under "break glass" type cover.

6.15 Operation of Diesel Fire Pumps Controller

The controller shall start the fire pump automatically on receipt of a signal indicating pressuredrop in the fire protection system and the pump will continue to run until shutdown manually.Automatic operation may also be initiated by a signal from other sources like remote startsignal.

The initiation circuit should be of the "fail safe" design, arranged to start the fire pump on theopening of the pressure switch contact/loss of normally closed signal.

Normal engine shutdown shall be achieved by a stop push button mounted on the front of theenclosure but will not stop the engine while the initiation signal is present. To stop the motorin an emergency situation, the vendor shall provide a mode selector switch. An overridemanual start facility should be provided in this selector switch. This "Emergency ManualStart/Off/Auto" selector switch shall be under "break glass" type cover.

6.16 Fire Water Ring Main

The CONTRACTOR shall design, supply and install suitably sized fire water ring main tocover the whole site including allowance for piping to future equipment/installations.



The mains shall be arranged in the form of a grid and be provided with isolation valves toallow alternative routes from the location of the fire water skid to all parts of the site requiringfire water.

Sizing of the mains shall take into consideration supplying the maximum anticipated demandincluding hydrants, hose reels and sprinkler system, at any part of the site. The sizing of thefire water ring main shall be in accordance with NFPA guide lines and to the requirements ofLocal Authorities & Civil Defence.

The fire water ring main shall be constructed in ductile iron pipes with spigot and socket jointsaccording to ISO 2531. The fire ring main shall be cement lined internally and zinc/ bitumencoated externally. Additional tape wrapping may be required if called for in the particularspecifications. The D.I. pipes and fittings shall comply with the "Specification for D.I. Pipes &Fittings". The underground fire main shall be installed in the form of supply rings for theoutdoor hydrants. Extensions from the underground fire mains shall be led to the indoor hosereels and sprinkler pipe work. Sufficient drain and vent points should be provided along thefire water ring main. The underground fire mains shall be flushed thoroughly beforeconnection is made to the fire protection system piping in order to remove foreign materials.The internal pipe work for hose reels which are fed from the underground fire ring mains shallbe manufactured from galvanised seamless carbon steel.

The D.I. fire water ring main shall be laid, tested and flushed in accordance with therequirements of "Specification for Construction, Testing and Commissioning of Ductile IronPiping Systems".

Isolation valves shall be located along the mains to enable certain sections to be closed downfor maintenance while other sections are still operational. All underground valves shall belocated in valve pits.

6.17 Fire Hydrants / Stand Pipes And Hose Reels

Fire hydrants shall be located along the fire ring main and should protect all sides ofrespective structures or buildings where risk occurs. The spacing between the fire hydrantsshall be in accordance with the requirements of the relevant NFPA code.

No hydrant shall normally be closer than 12m from the buildings protected and the distancebetween fire hydrants should not be more than 75 m. Each hydrant shall be fitted with anisolation valve in the connection from the main. The isolation valve shall be D.I. and shallmeet the requirements laid down in the "Specification for Valves".

Each fire hydrant point shall be fitted with suitably sized stand pipe. The stand pipe shall befitted on the top with 2 No. 65mm outlets. Each outlet shall be fitted with a landing valve whichshall be of the flanged, horizontal stop valve pattern and fitted with instantaneous femalecoupling and removable blank cap secured by a length of chain. The landing valve shall be ingun metal to B.S. 5041 : Part 1. The stand pipe shall be in carbon steel fusion bonded epoxycoated internally and externally to 300 microns D.F.T. The size, height & materialspecifications of the subject stand pipe shall be submitted to ADWEA/ENGINEER forapproval.



The above installations shall fully meet with the local Authority and Civil Defencerequirements. ADWEA/ENGINEER will advise when Civil Defence approval is required.

Each outdoor type fire hydrant shall be provided with a box containing 2 Nos. 65mm nominalbore hoses and hand controlled spray/jet nozzles. The length of the subject hose shall beadequate to cover the risk area. The hose box shall be manufactured from powder coated(internally & externally) sheet steel 2.0mm thick. The hoses cabinet shall be duly sized tohouse the contents mentioned above. The cabinets shall be provided with doors fitted withstainless steel encapsulated hinges & door fastners. The doors shall also be fitted withneoprene or similar approved seal to minimise the ingress of dust, sand & moisture. Air ventswith S.S. fire mesh screens shall be provided to prevent the build up of condensation. Thecabinets & stand pipes shall have a finish colour of fire red.

Hose reels shall be provided within building as indicated in the Particular Specificationsand/or relevant drawings. Hose reels shall be of the manual fixed, high grade non-kink typehaving smooth internal bore to B.S. 5306: Part 1. Each hose reel shall be complete with watercontrol valve, 45m of 19mm hose, guide, spray/shut-off nozzle and all necessary mountings.Automatic valves shall be fully open after not more than four (4) full turns of the hose reel. Anisolation valve shall be provided in the supply piping to each hose reel to allow maintenance.All hose reels shall fitted with a hose guide to enable free run out in any direction and fittedwith a staple for parking the nozzle once the hose is rewound on the reel.

Hose reels shall be mounted on the inside of powder coated sheet steel cabinet finished infire red colour internally & externally. The fire cabinet when opened, should allow the hosereel to be unreeled in any direction through an angle of 180 degrees to wall face. Provisionshall be made to ensure that doors are to be hinged as to turn through 180 degree on the wallface, thereby preventing any obstruction in the movement of the hose. There should be nofastenings to prevent the immediate opening of the doors.

Warning signs shall be provided next to the hose reels saying "FIRE HOSE REEL" and"WARNING NOT FOR USE ON ELECTRICAL EQUIPMENT" in Arabic and English.

7. AUTOMATIC SPRINKLER SYSTEM

7.1 Design Consideration

The contractor shall supply, install, test and commission an automatic water sprinkler systemwhere required by particular specifications and/or relevant NFPA standards.

The water sprinkler system shall be capable of automatic detection and automatic actuation.The sprinkler system for single zone shall interface with the fire alarm indication & controlpanel. The water sprinkler system shall be supplied from fire water ring main. Alarm signalspertaining to the sprinkler system shall be provided in the main fire alarm indication andcontrol panel.



7.2 Sprinkler Heads

Sprinkler heads shall be of a conventional pattern approved by VDS/LPC technical bulletin 1,section 13 and a temperature rating in accordance with clause 35.7 of BS 5306. Thesprinklers shall be complete with frangible bulbs manufactured to fuse at pre-determinedtemperatures. The proposed location and ambient conditions shall govern temperatureselections. All sprinkler heads shall be chrome plated. Alternatively sprinkler heads with brassfinish can be accepted subject to ADWEA/ENGINEER approval.

The sprinkler system shall be interfaced with the fire alarm system and all details such asdelay valve open, pump running, etc. shall be annunciated by LCD display on the main firealarm panel.

7.3 Pipework and Fittings Above Ground

All pipework and fittings shall conform to British Standards and to LPC Technical Bulletin1. Allpipework shall be galvanised steel medium weight to BS 1387/1967 or BS 3601 for over 150mm diameter. All pipework shall comply with Clause 21 of BS 5306 and be suitable for thedesigned system pressures.

Open pipework, such as multiple control discharge pipes shall be medium weight, galvanisedsteel to BS 1387 with galvanised malleable iron fittings to BS 143, screwed to BS 21.

Screwed fittings shall be malleable iron, black to BS 143 and screwed to BS 21. The jointingshall be made using P.T.F.E tape or jointing compound and hemp. Excess jointing materialshall be removed immediately after the joint is made.

All pipework fabrication shall be undertaken at the Specialist suppliers work and inspected inthe workshop where welding methods and procedures shall be in accordance with theprovision of BS 2640, BS 2971 or Heating and Ventilation Contractors Association Manual-Welding of Mild Steel Pipework.

Welding shall be executed by Welders who hold the appropriate Certificate of Competency asissued by the National Joint Industries Council of the Heating and Ventilation Industry.

All pipework shall have a gradient to Table 42 of BS 5306 in order to facilitate drainage of thesprinkler system. No pipework joint shall be made within the thickness of walls, floors orceilings.

Pipe supports shall in general be fixed to the building structure. Pipe supports and spacingshall conform to Clause 22 BS 5306.

7.4 Block Plan

The CONTRACTOR shall provide the below mentioned accessories/drawing/plans for thesubject equipment:-

One location plate bearing the words "SPRINKLER STOP VALVE INSIDE" shall be providedand fixed on the outside of the sprinkler valve chamber. The location plate shall consists of



white lettering on a black background with the words "SPRINLER STOP VALVE" at least 35mm high and word "INSIDE" at least 25 mm high.

Plans of the premises including the location of the sprinkler stop valve and area of protectionwhich the valve controls shall be fixed on a suitable position near the entrance so as to bereadily visible to Civil Defence or other persons responding to the alarm.

Further plans shall be installed in the pumproom and adjacent to all valve sets indicating mainvalve locations, drain down locations and control head discharge locations.

In addition, a separate drawing shall indicate details of valve sets correct operation with allcontrol valves and control switches numbered. A tabulated numbered valve chart shall beprovided along with the operating instruction drawing.

The CONTRACTOR shall supply and fix traffolyte labels to each valve/switch numbered tosuit equipment operating drawing. The labels shall be secured by 25 mm key ring fixings. Thelabel identification system shall be referred to in the operating and maintenance manual.

The plans, valve location drawing and valve chart shall be mounted under glass and framed.

8. FIRE EXTINGUISHERS

8.1 Portable Fire Extinguishers

Portable fire extinguishers shall be provided for the areas mentioned in the ParticularSpecifications or shown on the drawings. The fire extinguishers shall be manufactured inaccordance with BS EN3 & BS 7863 and operated by means of a lever operated valveprovided with a safety pin which shall allow control partial discharge. The extinguishers shallbe with clear instructions for their use in Arabic and English.

The fire extinguishers shall be selected to suit the hazard area and/or as indicated ondrawings/mentioned in the Particular Specifications.

Fire extinguishers shall be mounted at a height of 1m above floor level and should normallybe located near the exit from each room or area and/or at locations where they are easilyvisible and accessible in the event of fire.

All apparatus shall be suitable for operation by one person alone and shall be easilyrecharged. The fire extinguishers shall be of carbon dioxide or dry powder type as shown ondrawings and/or detailed in the Particular Specifications.

The size and number for the subject fire extinguishers shall ensure proper coverage for thesubject area in accordance with NFPA10 requirements as a minimum.

Where the extinguishers are provided externally, they shall be located inside protectivecabinets. The protective cabinets shall be painted red and marked with the word "FIREEXTINGUISHER" in Arabic and English. The cabinets shall provide protection from rain anddust and have a pull off front cover to allow ease of access.



All portable fire extinguishers shall have a filled weight not exceeding 10 kg unless specificallymentioned else where.

All fire extinguishers shall be indelibly marked with both gross and tare weight so that theycan be easily checked by weighing.

All fire extinguishers shall be designed for a service life of 20 years in the conditions existingat the installation site.

8.2 Mobile Fire Extinguishers

Wheeled carbon dioxide fire extinguishers shall be provided where specified. The cylindershall be mounted on a metal frame with wheels and handle to make it mobile andmanoeuvrable.

The cylinders shall be manufactured of high quality chrome-molybdenum or manganese steel.All CO2 cylinders shall withstand test pressure of 250 bars.

The fire extinguishers shall be fitted with rotary valve. Snow horns with built in nozzlesspecially designed to fit these valves shall direct the jet of extinguishing gas to give the mostefficient fire suppression. The fire extinguisher shall be fitted with safety valve and be suitableto extinguish class B, C, E fires.

The fire extinguisher shall be equipped with a hose length not less than 3 metres. The systemshall be equipped with grip type brass valve to control the extinguishing jet plus hand gripsupports to handle the vertical pipe efficiently. The duration of discharge shall depend on thecapacity of the unit.

All mobile units shall be painted in accordance with NFPA10, Appendix B, and shall bemarked in the Arabic and English language with clear instructions for use.

Wheeled dry chemical extinguishers shall be provided where specified and shall consist of apowder container to which shall be attached a cylinder of nitrogen gas for use as thepropellant of the extinguisher. The powder shall be led from the container to the dischargenozzle through a flexible hose. The equipment shall be mounted on a metal frame withwheels and handle to make it mobile and manoeuvrable.

The dry chemical container shall be of steel construction and shall have been pressure testedto at least twice its operating pressure. The container shall hold suitable capacity of foamcompatible chemical dry powder of ABC rating.

The pressurising cylinder shall be externally attached to the powder container. The hoseconducting powder to the discharge nozzle shall be 10m long and made of braided syntheticflexible hose which shall be permanently connected to the dry powder container and shall bestored in a manner allowing easy removal for use. The unit shall have two wheels which shallhave rubber or synthetic tyres and a minimum overall diameter of 300 mm.

The controls shall be a single, easily accessible, valve used to release the pressuring gas intothe powder container. The nozzle shall control the discharge of powder and shall be designed



for controlled delivery. All mobile units shall be painted in accordance with NFPA 10,Appendix B, and shall be marked with clear instructions in Arabic and English language fortheir use.

9. FIRE DETECTION AND ALARM SYSTEMS

9.1 General

The fire alarm and detection system shall be designed, manufactured and tested inaccordance with the National Fire Protection Association (N.F.P.A.) standards and codes.

Fire safety facilities not covered by NFPA codes shall be in conformity with BS 5306, BS5445, BS 5839 and with published international or national codes of practice or standardswhich shall also be stated by the CONTRACTOR in his tender and shall be subject toapproval by ADWEA/ENGINEER.

The fire alarm and detection system shall consist of multi zone fire alarm and indication panelwith all necessary initiating, monitoring and detecting equipment and devices such as manualcall points, smoke detectors, heat detectors, fire alarm sounders, batteries and chargerscomplete with all necessary connections, accessories and wiring to give a completely reliableand satisfactory system.

The fire alarm system shall be designed to cover zones as detailed on the drawings and/orParticular Specifications. In any zone of the protected structure/building, the manual breakingof a break glass contact or automatic operation of heat or smoke detector shall give anaudible and visual alarm signal at the indication/control panel and shall simultaneously ringlocal alarm bells in the particular zone.

All the equipment and components of the fire detection and alarm system shall be provided byone manufacturer. The supply, installation and commissioning of the fire alarm and detectionsystem shall be to the approval of ADWEA/ENGINEER, Local Authorities and Civil Defence.

All equipment and devices shall be wired and connected by fire retardant cables. The cablesouter sheath shall be flame retardant. All cables shall be installed on cable trays or clippeddirect on walls or ceilings by cable clamp and fasteners provided by the same cablemanufacturer.

All cable entries to the fire alarm control panel, junction box, solenoid valve, etc. shall be withglands using approved glanding kit.

Manual fire alarm call points, heat detectors, fire alarm control and indication panel andassociated equipment shall be weather proof to IP55.

All fire alarm system equipment or devices located in hazardous areas shall be flame prooftype (EExd II B T4).

The CONTRACTOR is referred to VDS 2092 which will be applicable for protection of cabletrenches/basement/tunnels.



The CONTRACTOR shall provide ADWEA/ENGINEER with the schedules of equipment andcomprehensive wiring diagrams for the alarm system proposed and shall obtain their approvalprior to placing order.

The fire alarm and detection system shall be approved and listed by anyone of the authoritiesmentioned under clause 4.

9.2 Fire Alarm Control and Indication Panel

The fire alarm and indication panel shall be designed and constructed to the requirements ofthe relevant NFPA standards and codes. The panel shall be located in the position approvedby ADWEA/ENGINEER.

The fire alarm panel shall be free standing type, 19" rack industrial and conventional type,floor mounted with only front opening as indicated in the Particular Specifications. The firealarm system shall protect risk areas by giving warning of a fire condition when detected byan automatic detector or by the operation of a manual call point. The risk area shall be dividedinto zones and each zone shall have its own fire indicator on the control unit. Alarm soundershall be mounted in front of the panel. Zone circuit shall receive input signal from indicativedevice, process and give command signal to the function device independent of any moduleor card.

The enclosure of the fire alarm control panel shall be constructed from 1.5mm powder coatedsheet steel and shall be provided with hinged lockable door. The enclosure shall have IP 55protection degree. All the components shall be mounted with proper spacing so that easyaccess can be achieved.

The mains power available will be 220 V + 10%, 50 Hz from the UPS system. The powersupply units located in the control panels shall convert the mains power to 24 V dc and thisshall be used to operate the fire detection circuit.

An internal, maintenance free standby backup battery for 24 hrs. with 5 minutes operation ofan alarm sounder after 24 hours discharge test shall be provided.

A double pole isolating switch shall be fitted for incoming power. The panel shall be pre-wiredand tested at factory before shipment. There shall be 20% fully wired spare capacity.

Live parts of the equipment and terminations carrying voltages above 50 volts shall becovered with transparent insulation plate, bearing the warning text : "Danger".

The following information shall be inscribed on a tag plate and the same shall be fixed onbottom of front of the panel.

- Manufacturer's name, Serial number, Rating in watts, Voltage and Frequency, Purchase order number and Year of supply.

The cable entry to the panel shall be from the bottom. Blank removable gland plates shall beprovided for this purpose. Input/output terminations shall not be done directly on the cards



but at the DIN rail mounted terminal strip, having terminals with screw clamp connections(e.g. Weidmuller/Klippon).

Flexible internal signal wiring shall be properly sized considering the electric load. The wiringshall be identified by means of colour coding, numbered ferrules as well as attached labels.Identification shall be secure, readable and accessible. The minimum acceptable conductorsizing will be 0.75 mm2.

The wiring shall run in plastic trunking with min. 25% spare capacity for future expansion. Asafety earth bar shall be provided bonded to framework and safety earthing system. It shallbe wired internally to provide earthing to power supply modules, metal equipment parts anddoors. An instrument earthing bar shall be installed, which will provide OV reference andgrounding of electronic signals and instrument cable screens. The instrument earthing barshall be connected to the dedicated instrument earthing system.

Proper tubular incandescent illumination shall be provided inside the panels & the lights shallget switched off when the panels are closed. The CONTRACTOR shall calculate the heatdissipation of the system and supply ventilation system for the panels if required.

The alarm panels shall continuously monitor all alarm circuits, including wiring and controldevices. When a fault monitoring circuit has been energised it shall not reset until the faultcondition has cleared.

The fire alarm control panel shall house a dual actual redundant PLC systems along with allnecessary hardware. The smoke detectors, heat detectors and manual alarm call points shallbe wired to the above panel. The out put of the system shall drive the alarmsounders/beacons. The fire alarm and detection system shall transfer the relevant I/O signalsto the mimic panel and to the control room.

The complete system shall be of "normally energised" type. Failure of any circuit shall noteffect the rest of the system. The detectors shall be grouped in different zones andconnected to the system. The main alarm control panel shall also be connected via a zonetype monitoring system.

The system shall have the following alarm features which shall be shown by means of LED'son front the panel.

- Fire detection.

- Open & short circuit detection.

- Earth fault detection.

- Power failure detection.

- Processing unit failure detection.

- System changeover alarm.



Upon receipt of manual or automatic fire signal in any zone, the following shall occur:

a) The appropriate zone indicators shall operate.

b) Visual and audible signal shall be indicated on the panel.

c) An "evacuate" signal shall sound in the particular zone.

d) An "alert" signal shall sound for 30 seconds in all other zones.

Alarm warning devices shall be de-activated by operation of the 'Silence Alarms' switch. Theinternal sounder will continue to operate and the fire indicators remain lit until the key switchcontrolled push switch is operated. This should only be achieved if the alarm initiating deviceis no longer in alarm.

Reset of the controller, after the fire incident has been investigated, will be achieved byoperation of the 'Reset' switch.

The fire alarm control panel shall incorporate the following features:

i) MIMIC

The mimic shall be formed by means of a simplified geographical layout of the area to beprotected. The mimic panel shall be wall mounted. 1 No. mimic panel shall be located atthe gate house and 1 No. shall be located at the main entrance to the servicebuilding/control room. Mimic shall have scratch proof, non-reflective plastic surface.

All the inputs and outputs to the system shall be represented by LEDs with red colour.Zones of detectors shall be clearly indicated. Additionally following alarms shall bepresented by means of LEDs located in the top left corner.

• Fire - red

• System Fault - amber

• Power Supply Failure - red

• System healthy - green

Acknowledge, reset and lamptest pushbuttons also shall be provided on the panel frontat accessible elevation.

The normal situation shall be indicated by extinguished LED's. In the event of an alarmthe relevant LED's shall start flashing and alarm sounder shall be activated, till the timeacknowledge push-button is pressed, following which the LED's should stop flashing &sounder become silent. Reactivation of LED & sounder will occur in case of the re-occurrence of the alarm condition.



When the situation will return back to the normal position LED's shall get switched offonly on pressing of 'reset' push button. All LED's shall be provided with the scheme of"Lamp Test".

ii) Zone Indication

The protected premises are to be split into suitable zones subject to theADWEA/ENGINEER's approval. All the detection devices within one zone shall initiateone indicator which shall clearly identify the zone.

iii) Control and Alarm Equipment

The control and indicating equipment shall be equipped with an audible alarm functioningon initiation of any of the detector devices.

Each detector zone shall be equipped with the following :

a) A volt free contact for repeat common alarm to the Control Room.

b) A volt free contact to initiate external alarm sounders.

c) Two spare volt free contacts.

d) Complete detector circuit monitoring, initiating a visual and audible warning onoccurrence of a fault condition.

e) Zone fire protection initiating device for actuation of fire protection (if required, CO2,etc.) and separate volt free contacts as above for initiation of repeat commonalarms, external loud sirens, tripping of HVAC units, etc.

iv) Fault Warning

• Equipment faults or advisory warning alarms such as low pressure, powersupplies, (CO2, if required) etc. shall initiate local visual and audible alarms viafault monitor.

• Internal faults shall initiate local visual and audible alarms via a fault monitor.

• The audible fault alarm shall be distinctive and different to the audible firealarm.

• Each fault monitor shall be equipped with following :

a) A volt free contact for repeat common alarm to the main Control Room ofthe pumpstation.

b) Two spare volt free contacts.



v) Alarm Sequence and Lamp Test

All alarm circuits shall be provided with an approved scheme for accept, reset andtest.

All lamps, including indication lamps, shall be provided with an approved schemefor lamp test.

vi) Air Conditioning and Ventilation Equipment

On the occurrence of any one fire alarm, automatic shutdown shall be initiated forthe air conditioning and ventilation equipment of the affected zone, with theexception of the battery room extract fans. The detector shall be provided with(LED) to identify triggered detector in case of fire alarm.

9.3 Ionisation Smoke Detectors

Ionisation smoke detectors shall be designed and constructed to the requirements of therelevant NFPA standards or approved equivalent standards. The smoke detectors shall beinstalled in approximate locations as indicated on the relevant drawings or respectivestandard (s).

The ionisation smoke detectors shall be of the non-adjustable type and operate on theionisation chamber principle incorporating radio active foils and cold cathode tube. There shallbe no moving parts and there shall be a facility to permit checking.

Radiation levels must be less than 0.01 micro rem/hour at a distance of 1 metre from anydetector.

All smoke detectors shall be complete with mounting junction boxes and red LED's forindication.

The smoke detectors shall be housed in a corrosion proof enclosure arranged for bayonet orplug in fixing to a base unit. The enclosures shall have drainage facilities for anycondensation.

Removal of a detector from its base shall cause a fault signal to be initiated.

9.4 Photoelectric Smoke Detectors

Photoelectric smoke detectors shall be based on the light scattering principle. The chamberdesign shall ensure maximum signal strength and signal-to-noise ratio and a stable sensitivityand stability over a wide range of environmental conditions.

The detector shall comprise of an infra red light source (LED) and a photo- sensitive element(photo diode). The pulsing of the LED shall not be sensed by the photodiode normally asthey would not be on one line.



The presence of smoke shall scatter the light into the photodiode and change its conductivity.After two successive positive samplings the alarm shall be triggered.

The detector shall have the facility to permit checking.

The detectors shall be provided with (LED) to identify triggered detector in case of fire alarm.

9.5 Heat Detectors

Point type resettable heat detector having both rate of rise and fixed temperature elements inconformity with the applicable NFPA standards shall be provided as required.

Point type resettable Heat Detectors with a static temperature response only shall also beprovided where required. These shall conform with the relevant parts of NFPA.

Flameproof heat detectors shall not be demountable from their sockets. Flameproofdetectors shall meet the requirement of BS 5501, part 5 and be rated 'sd' for zone 0, group 1,T2 areas as described by the relevant NFPA standard.

As an alternative, detectors rated 'ia' in accordance with BS 5501, part 7 may be proposed.

The detectors shall be provided with (LED) to identify triggered detector in case of fire alarm.

9.6 Manual Fire Alarm Call Points

Manual alarm call points shall be designed and to the requirements of the relevant NFPAStandards or approved equivalent standards. These shall be of the break glass surfacemounted type, housed in shatter proof and corrosion resistant case with front glass and plateof approved type.

The manual alarm call points shall incorporate a test facility where by the alarm may beinitiated without breaking the glass or dismantling the unit. They shall be wall mounted andshall be of the type in which breakage of glass cover plate release a switch to initiate an alarmwithout further action by the user.

The switching unit contacts shall be gold or silver plated or an alloyed metal which will notcorrode when left unattended in a highly polluted environment. Contacts shall be normallyopen or normally closed to suit the alarm monitoring system.

All call points shall be finished stove enamelled red and shall be complete with attachedhammer and an instruction plate lettered "FIRE BREAK GLASS" in English and Arabic.

The call point shall have IP55 protection degree. The call points shall be surface mounted ata height of 1400 mm approximately from finished floor level.

9.7 HVAC Duct Smoke Detectors

HVAC duct smoke detectors shall be in conformity with NFPA codes and standards. Thedetectors shall be located outside of the return air ductwork in an airtight housing as requiredby the drawings of fire safety facilities layout. Air shall be drawn from the duct by an air



sampling tube, passed through the detector housing and then returned to the duct via anexhaust tube. The movement of air in the duct shall cause the movement of air in thesampling system. The air sampling tube shall be centrally located and shall extend the fullwidth of the duct. All components shall be secured in position by suitable means.

A visible indication, which shall be clearly visible, shall be given on the airtight housing of thedetector which is actuated, or if the detector is hidden, by a remote indicator lamp.

All concealed detectors shall be provided with suitable remote indication.

9.8 Fire Alarm Sounder

The alarm signal sound level at any point in the building shall be 65 dB(A) or 5dB(A) higherthan any other noise likely to persist for longer than 30 seconds, whichever is greater asrequired by BS 5839 Part 1. If necessary additional sounder(s) shall be installed to meet thisrequirement. Sirens shall only be used. Sirens shall be red, suitable for surface mounting andfitted with volume control.

9.9 Flashing Beacon

Flashing beacons shall be XENON type with flash rate of 60 per minute approximately. It shallbe weatherproof and suitable for outdoor installation (IP65 minimum).

9.10 Wiring

The whole of the wiring for the fire alarm and indication system shall be carried out in fireretardant cables of minimum cross sectional area of 1.5 mm2 for detector circuits and 2.5mm2 for bell and battery circuits.

All fire alarm wiring shall be completely segregated from all other wiring in the building.

9.11 Radio & Electrical Interference

The alarm system shall be designed to avoid radio interference in excess of the limitsspecified in BS 800. Interference from lighting and power supply transients shall be kept to aminimum.

9.12 Installation

The fire detection and alarm systems installation shall conform to NFPA 70, 70E, 72 andother relevant standards and codes for outdoor installation and hazardous area installations.

The CONTRACTOR shall provide all required, supports, frames, trays, etc. for the completeinstallation of the system.

9.13 Fire Stopping For Cable Entries

All cables passing from one room to another or going out from the building shall be effectivelyfire stopped in accordance with the following requirements.



The fire stop material shall be suitable for concrete or masonry structures and shall retain itsmechanical strength in fire conditions to counteract small vibration and expansion. The sealshall be water and gas tight and shall withstand thermal shock and erosive action of a hosestream of water during fire. The material shall also be energy absorbing to delay theconduction of heat along cable trays, cables conduits, pipes etc. and also prevent passage ofchlorine or toxic gasses. The material shall be insect and vermin proof. The fire stop materialshall be non-intumescent and fire rated.

For areas upto 0.25 sq.m. suitable compound material mixed with water shall be used.

Where the area to be fire barriered is more that 0.25 sq.m. steel barriers with suitable infillcompound shall be used of minimum overall thickness of 6 mm.

The product shall carry the classification marking of the Underwriters Laboratories Inc. andshall be classified as :

"Wall Opening Protective Multiple-Cable Device Fire-Rating : 1HR"

If this is not available the CONTRACTOR shall arrange for fire resistance tests by theUnderwriters Laboratories Inc., or tests as described in BS476, Part 8 or national orinternational equivalent to be carried out by a competent independent testing laboratory.

10. INSPECTION AND TESTING

10.1 Fire Water Pump Skid

10.1.1 General

The CONTRACTOR shall not offer the equipment for inspection, unless all drawings anddocuments are reviewed and accepted by "ADWEA/ENGINEER".

No surfaces of parts of pumps or other major components are to be painted until theinspection is completed.

The CONTRACTOR shall give to "ADWEA/ENGINEER" advance notice prior to the date oftesting as indicated in the General Conditions of the Contract.

Complete inspection and testing as required by applicable code (NFPA-20) shall be carriedout.

Each individual component of the pump (casing impeller, shaft, sleeves, bearings etc.) shallbe subjected to all tests including N.D.T. as per applicable material specifications.

The material certificates indicating above details shall be inspected and certified byADWEA/ENGINEER's inspectors prior to starting shop tests of the pumps. TheCONTRACTOR/Manufacturer shall produce material test certificates for all componentsmaking up the pump skid in accordance with ISO 10474 3.1B certificate.



All pressure parts shall be hydrostatically tested with water at ambient temperature, at 1½times the operating pressure plus suction pressure as specified in the data sheet. Thehydrostatic test shall be maintained for a minimum period of 30 minutes.

The various tests carried out as described in this section shall be properly recorded, plottedand shall be extrapolated for speed, specific gravity, etc. Such documents shall be dulysigned by the VENDORS inspectors, TPI and ADWEA/ENGINEER's inspectors. It shall laterbe submitted to ADWEA/ENGINEER with the required number of sets for their record.

The CONTRACTOR shall establish an Inspection and Test Plan specific to the order forapproval by ADWEA/ENGINEER. This shall cover tests carried out in the manufacturer'sworks as well as those carried out by his sub-vendors. Detailed test procedures shall besubmitted at least 2 months in advance of tests.

10.1.2 Pumps

Pumps shall be performance tested at rated speed with job drivers, to obtain complete dataincluding pressure, capacity and power. The test shall last for four hours duration, out ofwhich at least one hour shall be at rated capacity and head and at rated speed.

The tolerances on guaranteed parameters shall be as follows:

Condition Guarantee Point(%)

Shut off(%)

Rated Differential Head -2 +8+5

Rated Efficiency ½ point efficiencyRated Horse Power +4

At least six values between duty point and shut off, and two values on the right of duty point(including one point at 150% rated capacity and one point with discharge valve fully open),shall be obtained during tests. All the readings shall be first taken with rising capacity andrepeated with decreasing capacity, valve being operated from fully open to fully closed.

All instruments used for conducting the tests shall be duly calibrated before tests byrecognised laboratories and calibration certificates furnished.

The calibration certificates should not be more than six month old.

After shop tests, the upper half of the pump casing shall be disconnected and dismantled.Visual inspection shall be carried out for any possible defects/deformations. Anydefects/faults/deformations detected shall be promptly repaired/replaced byCONTRACTOR/Manufacturer after obtaining approval of ADWEA/ENGINEER, prior todispatch. ADWEA/ENGINEER decision in this regard, within tender specifications, shall befinal and binding on the CONTRACTOR.

If witnessing of any tests is not satisfactory and a test is required, the cost of the witnessedretests hall then be borne by the CONTRACTOR.



If any defect is defected during the tests before completion or during the warranty period, thefaulty equipment shall then be rectified immediately by the Manufacturer at his expense. Ifthe fault cannot be rectified, the manufacturer must then replace the defective equipmentwhich must also be proven to be free from defects.

10.1.3 Diesel Engine

The diesel engines shall be tested in the presence of CONTRACTOR/TPI/ADWEA/ENGINEER's Inspector in accordance with the latest edition of British Standard 5514or any other equivalent standard as agreed to before the finalisation of the order.

The routine load and fuel consumption test shall be of the following duration:

a) Part Loads (25%, 50% & 75%) - ½ hour each

b) Full Load - 4 hours

c) 10% Overload - 1 hour

After the specified tests have been completed satisfactorily, the fuel stop on the fuel injectionpump shall be set and sealed at the specified site rating.

Unless otherwise specified, 10% overload provision shall be kept while setting the fuel stopfor the site running.

The hydrostatic test certificates for the heat exchanger/intercooler, fuel tanks and otherpressure vessels shall be furnished to the TPI inspector for his review and approval at thetime of load testing of the diesel engine.

10.1.4 Motors

The motors shall be inspected and tested as per applicable specifications, data sheets, codesand standards.

10.1.5 Controllers

The controllers for motor & diesel driven pumps shall be inspected and tested as per theapplicable specifications, data sheets, codes, standards and the inspection plan as approvedby ADWEA.

10.1.6 String Test

In addition to the above tests, a functional test of the complete unit including pump driver,transmission, control panel and all ancillaries shall be carried out by the manufacturer at hisworks.

The pump shall be run for at least four hours.

The following shall be checked during the test :



• Starting

Time to deliver rated capacity from receipt of starting signal.

• Cold Starting (Diesel Driven Units)

Six consecutive starts shall be tried to establish reliability of the system.

• Pump Performance

Pump performance characteristics, capacity-head-efficiency to be reverified withparticular reference to the requirements of NFPA 20.

Pump shall be run for 1 hour at 150% of nominal capacity, 1 hour at 100% capacity atcooling water flow rate. The balance one hour to be as decided by ADWEA/ENGINEER'Sinspectors witnessing the test.

• Temperature Monitoring

Lube oil, cooling water and exhaust temperatures to be continuously monitored duringtest.

• Vibration Monitoring

Vibration measurements shall be made on major accessible components. These shouldnot be more than 110% of those previously recorded during the component tests.

• Noise Level

Readings to be taken at 1 metre from enclosure.

• Control Panel

All alarms and control functions shall be tested by reproducing the relevant condition orby simulating it and observing the systems response.

10.1.7 Quality Control Plan

The below mentioned requirements shall apply to the Quality Control Plan / Inspection TestPlan which shall be submitted by the CONTRACTOR and approved by ADWEA/ENGINEER.

I) Pump Casing:

The following certificates to ISO 10474 3.1B shall be submitted:-

a) Heat treatment after casting

b) Chemical analysis

c) Tensile test at room temperature



d) Heat treatment after pre-machining (if required)

The above certificates shall be subject to review & approval by Third Party Inspection Agency/ADWEA/ ENGINEER.

II) Impeller, shaft, shaft protection sleeve, casing & impeller wear rings.

The following certificates to ISO 10474 3.1B shall be submitted:-

a) Mechanical Properties

b) Chemical Analysis

c) Visual check and Measurement of dimensions (shaft only)

III) A certificate for impeller balancing shall also be forwarded for the Third Party inspectionreview & approval.

IV) The below mentioned tests shall be included in the quality control plan as witness/ holdpoints for TPI/ADWEA/ENGINEER.

a) Performance test

b) Strip test

c) NPSH test

d) Noise level test

e) Vibration test

f) Bearing temperature measurement

g) Water leakage measurement

h) String test with job motor

V) Certificates type 3.2 to EN 10204 shall be issued for all tests mentioned under IV above.

VI) Certificates type 2.2 EN 10204 shall be issued for impeller balancing & hydrotest ofpump casing.

The above certificates shall be reviewed & certified by the respective inspection authorityduring factory tests.

10.1.8 Site Tests

After installation and before commissioning, the CONTRACTOR shall carry out site tests, tobe witnessed by ADWEA/ENGINEER's personnel, as well as pumps, manufacturersrepresentative.



The site tests for electrical and diesel pump operation shall include but not be limited to thefollowing:

- Discharge characteristics

- Water leakage measurements

- Vibration measurements

- Bearing temperature measurements

- Noise measurements.

Any problems/defects detected during these tests shall be promptly remedied/rectified byCONTRACTOR/Manufacturer at no additional cost to ADWEA/ENGINEER.

10.2 Fire Water Ring Main And Associated Accessories

10.2.1 Site Tests

The CONTRACTOR shall perform all required acceptance tests and complete the"Contractor's Material and Test Certificate" as specified in NFPA13. All tests shall beconducted in the presence of ADWEA/ENGINEER representative(s).

All the lines shall be properly flushed. The flushing rates shall be as specified in NFPA13.The system/pipework shall be hydrostatically tested to 1.5 x working pressure for a duration of4 hours. The hydrostatic test shall preferably be conducted prior to the backfilling of thetrenches.

Leakage tests for the fire ringmain shall also be carried out in accordance with NFPA24 over24 hour period. Weeping and slight drip leakage on piping/joints must be corrected.

After successful hydrostatic testing and flushing of the pipes, any temporary connectionsinstalled for the purpose of testing shall be removed.

Each fire hydrant shall be fully opened and closed under system water pressure. The testsshall be conducted with the pumps operating. The tests shall be witnessed byADWEA/ENGINEER.

Fire flow testing and marking of hydrants shall be conducted in accordance with NFPA291.

The stand pipes connected to the ringmain shall be hydrostatically tested as part of the firering main.

All valves shall be fully opened and closed under system water pressure to ensure properoperation. All these operations shall be witnessed by ADWEA/ENGINEER.



10.3 Automatic Carbon Dioxide System

10.3.1 Site Tests

All distribution piping shall be hydrostatically tested in accordance with the requirements ofNFPA12.

After system installation is complete, a functional test of the control devices shall beperformed without actually firing the cylinders. Verification of all system auxiliary functionsshall be made accordingly. In addition, a thorough inspection of distribution piping, supportsand nozzles shall be made.

All site tests shall be witnessed by ADWEA/ENGINEER representatives as well as systemmanufacturer's representatives.

Test certificates shall be issued immediately after site testing and copies of the same shouldbe incorporated in the O&M manuals.

Any problems/defects during these tests shall be promptly remedied/rectified by theCONTRACTOR/Manufacturer at no additional cost to ADWEA/ENGINEER.

10.4 Automatic Water Sprinkler System

10.4.1 Site Tests

All distribution piping shall be hydrostatically tested in accordance with the applicable NFPAstandards.

After system installation is complete, a functional test of the control devices shall beperformed without actually firing the nozzles. Verification of all system auxiliary functions shallbe made accordingly. In addition, a through inspection of distribution piping, supports andnozzles shall be made.

All site tests shall be witnessed by ADWEA/ENGINEER representatives as well as systemmanufacturer's representatives.

Test certificate shall be issued immediately after site testing and copies of the same shouldbe incorporated in the O & M manual.

Any problems/defects detected during these tests shall be promptly remedied / rectified by theCONTRACTOR / Manufacturer at no additional cost to ADWEA/ENGINEER.

10.5 Fire Alarm and Detection System

10.5.1 Factory Tests

All components of the fire alarm and detection system shall be factory tested in accordancewith the manufacturer's test procedure which should be submitted for ADWEA/ENGINEERapproval. All test results shall be recorded and forwarded for ADWEA/ENGINEER approvalprior to shipment. All test certificates shall be reviewed and certified by the respective



inspection authorities during factory tests. The quality control plan shall include functionaltest(s) for the fire alarm / control panel, checking of cause and effect chart and checking ofinternal wiring. All tests shall comply with the relevant NFPA codes and standards.

If any defect is detected during the tests before completion or during the warranty period, thefaulty equipment shall then be rectified immediately by the manufacturer at his expense. If thefault cannot be rectified, the manufacturer must then replace the defective equipment whichmust also be proven to be free from defects.

10.5.2 Site Tests

After installation and before commissioning, the CONTRACTOR shall carryout site tests, tobe witnessed by ADWEA/ENGINER representatives as well as equipment manufacturer'srepresentative.

The complete fire alarm and detection system shall be tested at site in accordance with therequirements of the relevant NFPA standard. The tests shall be conducted by a specializedtest engineer.

All test kits which will be required to complete the site tests as specified shall be supplied bythe CONTRACTOR.

Test certificates shall be issued immediately after site testing and copies of the same shouldbe incorporated in the O&M manuals.

Any problem/defects detected during these tests shall be promptly remedied/rectified by theCONTRACTOR/manufacturer at no additional cost to ADWEA/ENGINEER

10.6 Manufacturing Data Record Books

The test certificates, material certificate, mill certificates and casting certificates for all itemsrelated to the fire protection system shall be entered into the manufacturing data recordbooks, as an ongoing procedure and must not be left until the end of the manufacturingprogramme. The manufacturing data record books including the witnessed tests documentsshall be submitted to ADWEA/ENGINEER prior to the despatch of the equipments.

11. SPARE PARTS

The CONTRACTOR shall include in his bid, as a minimum, consumables and spare parts forcommissioning and spare parts for guarantee period operation. TheCONTRACTOR/Manufacturer shall guarantee the availability of spare parts for a minimumduration of 10 years.

Any spares over and above the specified minimum shall be listed and priced separately bythe CONTRACTOR for ADWEA/ENGINEER's approval/acceptance.

Spare parts lists with detailed specification of each component are to be provided separately.



The CONTRACTOR shall supply the following spares (as a minimum) for the fire protectionsystem supplied and installed under the contract.

a) For each type of pump installed on the fire water pump skid.

- Complete set of pump and motor bearings (DE and NDE included in one set).

- Complete set of impeller and casing wear rings.

- Complete set of impeller keys and shaft nuts.

- 2 sets of gland packing.

- Complete set of shaft sleeves.

- 2 sets of all "O" rings/gaskets/washers, etc.

- 1 No. flexible coupling.

- Complete set of mechanical seals (where fitted).

- 1 No. fuel pump.

- 1 No. oil fitter.

- 1 No. air filter.

- 1 No. radiator fan.

- 1 set of recommended spare parts for electrical starting system.

- 1 set of fuel and lubricating oil hoses.

- 1 set of recommended spare parts for each of the fire pumps controllers.

b) For the fire detection and alarm system.

- 4 Nos. spare units for each type of sensor fitted (ionization smoke detectors, fixedtype heat detector, rate of rise heat detector, etc.)

- 2 No. spare frangible break glass.

- 2 No. spare fire alarm bell/horn.

- 1 set of recommended spares for the fire alarm Panel*.

* (A list of these spares shall be submitted with the tender).

c) For the Automatic CO2 System.

- 1 No. spare cylinder valve assembly.



- 1 No. pilot valve assembly.

- 1 No. main valve seal assembly & retainer.

- 2 Sets of all "0" rings

- 1 No. each of 12 VDC/24 VDC solenoid.

- 1 No. siphon tube for CO2 cylinders.

- 1 No. manual actuator.

- 1 No. Strainer.

- 1 Set of connectors, fittings (elbows, tees etc.), flexible stainless steel hose etc.

- 1 No. rupture disc.

- 2 No. smoke detectors (ionization & photoelectric).

- 1 No. manual release switch.

- 1 No. manual abort switch.

- 1 No. bell / horn.

- 1 No. Control module (each type).

d) For Water Sprinkler System.

The CONTRACTOR shall provide spares and accessories in accordance with clauses29,30,31 & 32 of BS 5306 which shall include but shall not limited to :-

One lockable spares cabinet containing spare sprinkler heads of matching type to thoseinstalled including high temperature heads, one sprinkler head key/spanners and anyvalve keys. Where multiple controls are installed there shall be a minimum of one sparecontrol of each size and different temperature rating. The cabinet shall be fixed in anaccessible position.

12. SPECIAL TOOLS & TACKLES

The CONTRACTOR shall furnish a list of special tools and tackles, considered essential forthe normal maintenance of the installation (if any) and define what is to be supplied with theequipment.

Trouble shooting and maintenance schedules shall be provided by the CONTRACTOR.



13. PACKING AND SHIPMENT

The components of the fire protection system shall be packed in wooden type seaworthycrates having sufficient strength to withstand normal ship handling and transport or be fixedmounted in containers.

The crates shall be marked with ADWEA name and address, order number, type ofequipment, hoisting points etc.

Enclosed with the shipment, the following documents shall be included in suitable wrapping:

• Packing list.

• General arrangement drawing.

• Foundation plan including foundation loadings (where applicable).

• Operation and maintenance manual.

• Installation instructions.

14. VENDOR DOCUMENTATION

The CONTRACTOR shall furnish following vendor data as a minimum, along with the bid:

- Detailed reference list.

- Catalogues/Brochures for quoted models/types.

- Tested and certified curves for previous supply/supplies made (of the same model) insimilar operating range for the fire pumps.

- Cross section drawings with detailed parts list for all fire protection equipment.

- Detailed material specifications for all fire protection equipment.

- Completely filled-in and stamped data sheets for all fire protection equipment.

- Performance curves at rated speed for fire pumps.

- Dimensioned general arrangement drawing for pump, driver and accessories

- Speed, torque and time curves for fire pumps.

- Motor data and curves as specified in the motor specifications.

- Engine data and curves as specified in the engine specifications.

- Recommended list of consumables and spares parts.



- Complete details of testing facilities available at manufacturers works for all fireprotection equipment.

- Local (UAE) agent name and address.

Bids not accompanied by all of above mentioned information/data shall be consideredincomplete and liable to be rejected.