fire fighting services

8/9/2019 Fire Fighting Services

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GI-1

GENERAL INSTALLATION NOTES

1. Regulations, Codes And Standards

All works covered in this Specification shall be implemented and completed in the strict

compliance with all relevant statutory regulations, by-laws and orders of the LocalAuthorities. Where the Local Regulations and Rules do not exist, the appropriate BritishCodes and Standards shall be adhered to.

All fire fighting equipments and materials used shall be in full compliance to the Jabatan

Bomba Malaysia, the relevant British Standards, and all other relevant Authorities having

jurisdiction over the installation.

On completion of the installation the sub-contractor shall certify in writing to theconsultant and the Fire Authority that the installation is in full compliance with the DGFS

requirements and shall take all necessary steps, including the paying of testing fees for all

the equipments installed and to obtain approval of the installation from the Fire

Authority.

2. Excavation Trenching And Making Good

The sub-Contractor shall be entirely responsible for excavation, trenching, backfillingand making good for all work included in this Sub-contract.

3. Testing

Before the issuing of the letter of acceptance by the Consulting Engineers, the installation

shall be tested and adjusted in accordance with the following sub-clauses and Local By-

Laws.

The Sub-Contractor shall supply all materials, apparatus, instrument, water and labour required for the tests. All tests shall be carried out and certified in the presence of the

Local Authority’s appointed representative and Consulting Engineer. Test results shall

be submitted to the Consulting Engineer in duplicate for approval and shall include a

brief description of test method and instrumentation used.

a. Cold Water/Hose Reel/Sprinkler/Wet Riser Piping

After each section of pipework has been completed, the joints shall be sealed andthe section subject to a hydrostatic test at a pressure of 150 psi. The pressure shall

be held for a period not less than one hour and should leaks become apparent,

effective repair and re-testing are required.

This test should be done before plastering of wall, bricking in of duct, installation

of ceiling etc.


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GI-3

replacements made. All entries to the log book shall be made by the Sub-Contractor and

witnessed by the nominee. The log book shall be handed over to the Consulting Engineer on completion of the Maintenance Period. The schedule of maintenance shall be

submitted to the Consulting Engineer for approval.

8. Acceptance

When the Sub-Contractor has fulfilled all testing and maintenance obligations, the FinalCertificate will be issued, the final payment made and the deposit lodged, as security will

be returned. The complete installation will then be taken over by the Client.

Notes

The Sub-Contractor is deemed to have visited and familiarizes for himself of the site condition.

The openings, plinths etc. shall be provided by the Main Contractor. However, it is theresponsibility of the sub-contractor to provide accurate information for all openings, plinth sizerequired to the Main Contractor who will co-ordinate the work before casting.

The sub-contractor has to ensure for himself all his openings, sleeves, underground pipework,

cast-in piping are correct in size, position, outlets, level etc. Failure to ascertain this part of his

job, the sub-contractor has to bear all cost incurred as result of this.

This sub-contractor is responsible to patch up any opening and make good to the building surfacefor the installation of Mechanical and Electrical Services.


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HR-1

HOSE REEL SYSTEM

1. GENERAL

The Contractor shall supply, install, test and commission the complete hose reel system

generally as shown on the drawings. The design and installation of all components andthe system shall comply with the current rules and requirement of the Local FireAuthority and any other relevant authorities.

2. FIRST AID HOSE REEL SYSTEM

A complete first aid hose reel system comprising of hose reels and distribution piping

shall be supplied and installed as shown on the drawings.

3. HOSE REELS

Hose reels shall be of the swing out type. Each hose reel shall have a 30m long 25mm

dia. bore non-kink braid rubber hose. The minimum bursting pressure of the rubber hose

shall be 600 psig. All hoses and fittings shall be suitable for a working pressure of 150

psig.

The nozzle assembly shall be constructed of corrosion resistant material of adequatestrength and shall be finished to provide a smooth surface. It shall be of approvedmanufacture relevant to BS 336 : 1980.

Side plates of the reels shall be pressed steel and shall not exceed 750mm in diameter.

The core on which the hose is wound shall have a minimum diameter of 200mm. When

fully coiled, rims of the side plates shall project at least 15mm above the coiled hose.

Hose guide set in suitable position shall be provided to facilitate the withdrawal of the

hose with ease. The guide shall be designed and installed such that the hose can run off in any direction from left to right. The guide roller shall not be less than 25mm diameter

and be constructed of a suitable non-metallic material.

The hose reel water ways connecting the water supply to the hose shall be constructed of

stainless steel or non-ferrous material such as brass. The body of the waterways casting

shall be machined and bearings supported by a malleable cast iron wall bracket.

The exterior of all components shall be rounded and smooth to prevent injury during use.Threaded parts of aluminum alloy components shall be coated with grease.

The sides of hose reels shall be painted signal red. The installation shall be coloured in

accordance with BS 1710 : 1984.

On every hose reel, the manufacturer's name, trademarks and year of manufacture shall

be displayed.


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HR-3

(c) The control system is actuated by the dropping of the water pressure in the

pipeline. The electric pump will cut-in once the pressure drops below the presetvalue.

(d) The "pump run" indicator will illuminate on the controller when the pump is

turned on.

(e) Should the electric pump fail to start due to the failure or tripping of the electricmotor, the diesel pump will take over automatically. Similarly, the electric pump

trip or A/C failure indicator will be illuminated.

(f) The operating condition of the pumpset is monitored to the fire alarm panel:

Pump run/Pump trip

A/C fail

ii. Operation in Manual Mode

The controller is fitted with "Manual Start" for testing and emergency application. It

is independent of the "Auto Start" control system.

(a) For manual operation, turn the following control switches to positions indicated:

Main indicator - ONPumpset supply isolator - ON

Mode selection switch - MANUAL

(b) Press the `start' button on the electric pump controller, when the pumpset starts,

the start switch must be released.

(c) Should the electric pump fail to start, repeat item (2) in the standby pump

controller.

(d) Once the pumpset is started manually it must be reset to stop.

System Under Normal Condition

The following indicators and switches will be observed on the controller when the system

is under normal working condition.

1) 3 phase power supply indicators will illuminate.2) The auto-manual selector switch in "AUTO" position.

3) Main isolator and pump supply isolator in "ON" position.


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TA-1

TANKS

Water storage tanks shall be of hot-dipped galvanised pressed steel sectional construction in

accordance with B.S. 1564. Galvanising shall be B.S. 729 with a minimum coating of 610 g/m2.

Capacities and size shall be as indicated in the drawings.

The tank shall be externally flanged on all sides with internal flanges on bottom sections. The

tanks shall be adequately braced and reinforced to prevent distortion when in operation. The

tank shall be compartmented as shown in the drawing.

Unless otherwise specified, thickness of plate shall be not less than 4.5mm thick on all sides and

bottom of tank of maximum 2 tiers high. For tank with 3 tiers high, thickness of plate shall be

not less than 5mm thick on all sides and bottom of tank. For tank with 4 tiers high, the top 3 tiersfor the side plate shall be not less than 5mm thick while the last tier for the side plate and bottom

of tank shall be not less than 6mm thick.

Covers shall be constructed of galvanised mild steel plates of 3mm thickness and supported on

steel truss to meet the size of the tank and provided with manhole/s of not less than 600mmdiameter clear opening unless otherwise specified and a suitable vent fitted with mosquito proof

wire netting and mushroom cover and of cross-section not less than that of the inlet pipe shall be

provided.

Access ladders shall be of aluminium and shall be provided adjacent to each inlet pipe for all

tanks more than 1m deep.

Jointing material shall be suitable for the conditions and shall be non-soluble, non-contaminatingand non-toxic. Pipe connection shall be flanged with neoprene between tank and flange to

ensure a watertight seal.

The steel tank shall be tested for leaks for a period of 24 hours before painting to the satisfactionof the Engineer.

The tank shall be supplied complete with stainless steel sensor electrode, level indicator, access

ladders, openings, scale and all necessary accessories.

The cable system, moving indicators and counterweight shall be arranged so that the scale is

direct reading; the indicator will move up as the level rises. The scales shall be positioned so

that the levels of the indicating pointers correspond as closely as possible to the actual levels in

the tanks behind. The scales shall be carefully calibrated with large figures indicating thousands

of gallons, at 1000 gallons intervals, smaller line at 500 gallons intervals.


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VA-1

VALVES, GAUGES ETC.

1. GENERAL

All valves shall be supplied, installed, connected up and tested in position as generally

shown on the drawings and as required for the satisfactory operation of the system.

All valves shall be constructed, and applied in accordance with the relevant British

Standards and the current edition of the F.O.C. Rules and shall be fitted in accessible positions for operation and repair.

All stop valves shall be right handed and shall have indication whether it is open or shut.

The controlling wheel must be marked with the direction the wheel is to be turned to closethe valve.

The connection between each valve and the adjacent equipment shall be made with a union

or a flange, for ease of dismantling.

Before installation, all valves shall be blown out to remove any foreign matter that might

lodge in them.

Valves spindles shall be adequately lubricated with graphite and all glands shall be freshly

packed before installation.

The size of the valves shall be of the same diameter as the pipe for which they are to be

fitted.

All valves shall be suitable to the working and test pressure of the system in which they are

installed and shall be of approved manufacture and shall be of the same manufacture.

2. CHECK VALVES

Check valves in pump discharge shall be stainless steel spring loaded, M&G wafer check

valve or recoil check valve. Check valve up to 50mm diameter shall conform to BS 1953and above 50mm diameter to BS 4190.

3. BALL VALVES

Ball valves shall be supplied and fitted complete with back nuts, ball float and arm. Ball

floats may be of soldered copper, brass or polythene PVC. Ball valves shall be of the low

pressure type and shall comply with BS 4141/1957.


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VA-2

4. STRAINERS

In-line Y-type strainers shall be provided and installed where shown on drawings. All

strainers shall be of steel or bronze body type screwed for sizes up to and including 50mmdia. and for sizes 65mm and above shall be of the cast iron flanged type. A removal bronze

screen shall be provided and the degree of mesh size shall depend on the equipment to be

protected.

5. DRAIN COCKS

Gun metal drain cocks shall be provided as necessary to ensure that all sections of the pipework and plan can be effectively drained. Sizes of drain cocks shall be as stated below:-

a) Pipes up to and including 50mm dia. - 20mm dia.

b) Pipes for 65mm dia. - 25mm dia.

c) Pipes above 65mm dia. - 32mm dia.

Drain cocks of 20mm dia. shall be complete with hose unions for draining down.

6. AIR VENTS AND DRAINS

Air bottles and cock shall be provided for air-venting where required. For pipes up to and

including 32mm, the bottles shall be of the same dia. as the pipes to which they are fitted.

For pipes above 40mm dia. bottles 0.5mm long shall be used. At the top of the bottle a taper

reducing fitting shall be installed with 20mm vent pipe and air-cock fitted at low level.

Automatic air vents shall be provided as necessary and shall be complete with isolating

cock. The discharge from these vents shall be pipes via copper pipe of appropriate size to

the nearest floor drain or drain pipe. Drains shall be connected to equipment with unions tofacilities cleaning and removal.

7. ISOLATING VALVES

Valves up to and including 50mm dia. shall be of gun-metal with female screwed

connections where fitted to steel pipes. Valves for copper pipe shall have compression type

connection for sizes up to and including 40mm. These valves shall be of the full way, split

wedge disc. pattern with non-rising spindles of high tensile steel, fitted with detachable castiron hand-wheels.

Valves 50mm dia. and above where fitted to copper pipe shall be flanged and similar to

those for steel pipework.


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VA-3

8. GLOBE VALVES

Valves shall be of the globe pattern, screwed gunmetal for sizes up to and including 50mm

dia. Valves 65mm dia. and above shall be of the flanged cast iron, cast steel or ductile irontype.

9. RECOIL VALVES

The recoil valve shall maintain a constant upstream pressure regardless of fluctuation in the

demand and shall close tight when pressure reversal occurs.

The main valve shall be a hydraulically operated, pilot controlled diaphragm type globe or angle valve. The valve stem shall be guided at both ends by a bearing in the valve cover and

an integral bearing in the valve seat. The main valve shall have a single removable seat and

a renewable resilient disc. No external packing gland is permitted.

The pilot shall be a direct acting, adjustable spring loaded diaphragm valve designed to

permit flow when the controlling pressure exceeds the spring setting.

10. GATE VALVES

Valves shall be screwed bronze for sizes up to and including 50mm dia. Valves of 65mm

dia. and above shall be flanged cast iron, steel or ductile iron type.

11. VIBRATING COUPLING

Piping connections to all pumps and all equipment shall be by means of fabric reinforced

moulded high pressure convoluted rubber connectors. The fittings shall have integral rubber

flanges, and be bolted onto the pipe lines using flanges for 50mm dia. and larger, for smaller than 50mm dia. connections shall be by means of high pressure hose clips and sealed with

rubber plastic.

12. ORIFICE PLATES

Orifice plates shall be fitted where necessary in order to assist hydraulically balancing a

system or to meet the pump characteristic curves. The diameter of the orifice shall not be

less than 50% of the diameter of the pipe into which the plate is to be fitted. The orifice plates shall be of approved type and shall be installed in accordance with the F.O.C. Rules.


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VA-4

13. PRESSURE GAUGES

Pressure gauges shall conform to BS 1780 and shall be of minimum 6" dial type. The scale

value of the gauges shall be of the order of 150 per cent of the maximum known pressure.All pressure gauges shall be fitted with gauge cocks.

14. PRESSURE SWITCHES

Pressure switches shall be of the electrical operated type. They should be selected to suit the

system installed.

15. ROSE STRAINER

Rose strainer shall be bronze ball type securely fastened to the pipe inlet.


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PV-1

PIPEWORK

1. GENERAL

The section covers the supply, installation and testing of pipework as generally shown on

drawings. All work shall be executed to the satisfaction of the Consulting Engineer and asfar as possible avoiding any interference with the works of the other trades. All pipes shall

be of approved manufacture and all pipes samples to be used shall be submitted for

Consulting Engineer's approval. Before being installed, all pipes shall be thoroughlycleaned, free from scales, rusts and obstruction and if necessary, the pipes shall be coated

with one coat of primer to prevent rusting.

In all exposed pipework installed, there shall be a clearance of approximately 50mm left between the outside of the pipe and the nearest wall, ceiling or equipment surface. Pipe

joints or fittings will not be permitted within the thickness of walls floors or any other

partitions.

All straight vertical run of pipe more than 30m in length shall have direct pockets formed

from equal tees and plugs at the low points. Before horizontal runouts are taken off from

such vertical risers, air bottles shall be fitted using equal or reducing tees at the high point of

the risers.

Any open ended pipe of pipe connection left overnight or for any considerable period shall

be protected from the entry of duct, sand, etc. by the fixing of plastic or soft-wood plugs.

All pipes shall be anchored as required to control the movement of pipes due to thermal

changes. General anchors shall also be fitted at the lower end of the vertical pipes. the

location of these pipes anchors shall be carefully planned to make suitable allowance for

temperature variations in the pipe lines without causing undue stress in the pipework and

fittings.

The anchors shall securely hold the pipe in a fixed position to resist the attempted movement

due to expansion and the weight of the pipe and contents.

All pipework shall be installed in accordance with the Rules and to the approval of the LocalFire Authority.

All piping shall be individually supported.

All necessary hangers and supports for all pipework installed shall be supplied and installed

by the Sub-contractor. Samples of hangers, brackets and supports to be used shall besubmitted for Engineer's approval.


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PV-2

Hangers and supports shall be of steel of adequate dimensions and designed to allow for

expansion and contraction. All hangers and supports shall be primed and finish coated with black bituminous paint to approval.

Hangers or support spacing shall not exceed the following:-

Maximum Spacing

HorizontalSpacing

VerticalSpacing

Up to and including 40mm bore 2m 2m

50mm bore up to and including 80mm bore 3m 4m

100mm bore and above 4m 4.5m

Pipings 150mm diameter and larger shall be supported from the floors below on stands or

by bracketing off columns using column clamps.

Piping below 150mm diameter may be hung on hangers from the floor above.

Pipe hangers or brackets shall be properly isolated, where necessary to prevent vibration and

noise transmission and special care shall be taken in making piping connections to pumps

and all other vibrating equipment.

Pipe hangers shall be placed not more than 0.6m from each change of direction of pipes,

preferably on the side with the longest run.

Vertical runs of pipe shall be supported by clamps or collars suitably supported from anglesor channels in turn testing on special spring supports fixed to the floor slab. These supports

shall be at least provided at each alternate floor slab and the top and bottom of each risers.

Where vertical runs of pipes are turned at floor level to run horizontally, purpose-made

collars and supports shall be provided to approval.

Hangers for horizontal pipe runs shall allow for expansion of pipelines and shall have

provision made for adjusting grade and alignment. They shall be split ring and adjustable

type or other approved design hung on around steel rods or approved equivalent. Brackets or

clamps may be used where pipelines run along walls, columns or ceiling.

All fixing of pipe hangers or brackets to the building structure shall be by means of

approved nylon or metal expansion plugs. Suitable receiving holes shall be cut by approved

rotary percussion electric drills to give true and accurate drillings.


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PV-3

2. PIPE SLEEVES

Pipe sleeves shall be fitted for pipes passing through floors, walls or any other partitions.

Sleeves for galvanised pipes shall be of galvanised pipe off-cuts, and sleeves for copper pipes shall be similar but of brass or copper.

Pipe sleeves fitted in floors shall generally be 20mm above the finished floor level except in

plant rooms and other areas where “Wet Floors” are excepted in these cases, the sleevesshall end 50 mm above the finished floor level, and tightly caulked with suitable diameter

asbestos rope.

Pipe sleeves fitted in walls or partitions shall end flushed with the finished plaster or other

surface finish.

Generally pipe sleeves shall be one (1) nominal diameter larger than the service pipeconcerned, except for sizes 100mm bore and above where they may be specially constructedfrom not less than 1/8 galvanised sheet steel.

Where pipes pass through floor trench covers, special flanged sleeves shall be fitted to form

a watertight seal.

Where pipes pass through fire-brick walls or other partitions, clearance between pipe and

sleeve shall be tightly packed with suitable diameter asbestos rope to form a sound and fire

barrier.

Where necessary for poured concrete fabrications, the Sub-Contractor shall supply the pipe-sleeves to the Main Contractor together with the necessary information for these

sleeves to be correctly positioned in the shuttering before pouring the concrete.

3. PIPE MATERIALS

The types and quality of all pipework used shall comply with the following schedule unlessotherwise stated on the drawings or elsewhere in the specification.

i) First aid hose reel and wet riser pipework shall be of G.I. class C to B.S. 1387.

ii) All sprinkler pipes shall be medium grade black steel class B pipe to B.S. 1387.


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PV-4

4. STEEL PIPE JOINTINGS

Screwed Connections/Welded Flange Connection

All joints up to and including 65m dia. on galvanised steel pipeworks shall be made by

screwed connections.

All joints on 80mm dia. galvanised steel pipework and above shall be made by means of

welded flanged connection or scred connections.all joints on black steel pipeworks shall be made by means of screwed connections.

All joints to piping in pump room shall be by means of welded flanged connections.

All screwed joints shall be made with teflon thread sealing tape or approved equivalent.

All welded joints shall comply with the relevant welding codes. Only qualified welders shall be allowed to work. All welded joints (except end to end pipework) shall be forged in one piece welding flanges, reducers, elbows, etc. of approved make to BS 1965 : 1963. All scaleand oxide shall be removed with chisel and hammer or file.

Appropriate mating flanges shall be used on all flanged connections. Flanges shall comply

to BS 10 Table E or F where necessary. All flanged joints shall be flushed and aligned and

shall be made of corrugated jointing rings, coated on both sides with the recommended

jointing compound.

All bolts and nuts shall be of hexagonal type made from bright steel of approved

manufacture to BS 28.

5. STEEL PIPE FITTINGS

In all cases, galvanised pipe fittings shall be used on galvanised pipework unless written

confirmation is supplied by the Consulting Engineer.

In general, all fittings shall be of the malleable iron type but in all cases entirely suited tothe working and test pressures of the current concerned.

Reduction in the diameter for through-flow pipes shall be made by means of reducing

sockets. Eccentric reducing socket shall be used on horizontal pipes and concentricreducing sockets for vertical pipes only.

On all changes of direction, long radius bends and sweep or “pitcher” tees shall be used.


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PV-5

6. SLOPE OF PIPES FOR DRAINAGE

Sprinkler pipes shall be so installed that the system can be thoroughly drained. As far as

practicable all pipes shall be arranged to drain to the intallation drain valve which should benot less than 50mm dia. for Ordinary and Extra High Hazard Systems and not less than

40mm for Extra Light Hazard Systems.

With dry pipe or alternate wet and dry pipe systems range pipework should have a slope of at least 4mm in 1m and distribution pipeworks not less tahn 2mm in 1m.

In the case of basement and the areas where sprinkler pipework is below the installation

drain valve and in other trapped points in the system auxilliary valves of the following

minimum sizes should be provided:-

20mm valves for pipes up to 50mm dia.25mm valves for 65mm dia. pipes32mm valves for pipes larger than 65mm dia.


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PL-1

PAINTING AND LABELLING

1. PAINTING AND PROTECTION

Only the best primers and paints shall be used on all equipments, piping, fittings, valves,hangers, conduits, switchboard, etc. and all work exposed to view.

Painting shall only be done in suitable weather and all final coatings shall be to the approval

of the Owner and/or the Architect.

Tarpaulins, sheets and coverings to protect floors, walls, etc. shall be provided by this

Sub-Contractor.

All metallic items to be painted shall be clean, free of grease and rust.

Each coat of paint shall be applied by brush and when thoroughly dry, smoothed with

suitably abrasive paper or cloth before the next coat is applied.

Should any corrosion or signs of faulty painting technique become apparent during the

maintenance period, the Sub-Contractor shall require to remove the defective paint work or

component part at his own cost and retreat and/or repaint it as directed and to the satisfactionof the Consulting Engineer.

The painting shall be carried out as follows:-

a) All pipes where exposed in the building shall be painted as follows:-

1 - approved rust inhibitive primer

1 - undercoat

2 - coats of high gloss finish

b) All underground concealed pipework shall be painted 2 coats of bituminous paint,

care shall be taken in the choice of this paint in regard to its melting point and

adhesive properties.

c) All screw heads, wingnuts and other means of fixing shall be painted at the time of installation and refinished after the final testing and commissioning is completed.

d) All cut of galvanised steel or sheet metal works shall be prepared as mentioned

above and painted 2 coats of zinc chromate paint.


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PL-2

e) All manufactured items that are delivered in a painted condition, whether under or

finish, coated shall be prepared as mentioned above and then repainted as before;however, sprinklers shall not be altered in any respect nor have any type of

ornamentation or coating applied except where sprinklers are used in premiseswhere corrosive vapours are prevalent. These sprinklers shall have approved

corrosion resistant coatings (applied by the manufacturer) or shall be coated twice

with a good quality petroleum jelly, the first coat to be applied before erection and

the second after installation.

Special care shall be taken with the painting of the underside of pumps, bases, etc. A

layer of bituminous material or roofing felt shall be laid on the base before the item

is installed and then trimmed to size.

f) All items that are considered liable to oil or grease splashes shall be finished painted

using 2 coats of appropriate oil proof paint.

All items subjected to corrosive or hazardous condition shall be specially treated and painted with suitable anti-corrosive paint as recommended by the manufacturers.

A schedule of paint colours to be used will be issued to the Sub-Contractor as the

work progress on Site.

2. LABELLING

Lettering on piping shall be painted in contrasting colours and shall be in center of bands.

The lettering shall be in block letters with minimum dimensions of 1/2 in. high for pipes 2ins. and under and 1 1/2 ins. high for pipes over 2 ins.

Directional arrows shall be in black on two visible sides of all pipings at each valve, fittings

and long runs at 6 ft. centers. The size of arrow shall be 3 ins. long on pipes up to and

including 2 ins. diameter and 6 ins. long on pipes over 2 ins diameter.

Every valve in the installation shall be provided with a 2 ins. diameter brass tag secured to itwith a chain and stamped with the service and area the valve controls.

Pumps and all duplicated equipment shall be numbered and labelled in 1 in. high stencilled

letters.

Labelling shall be provided for fireman lift, fire console room, fire fighting pumproom,

breeching inlet, flow switches, all control panels and fire console room directional route.

The size of the lettering shall be to the Engineer and CIFs requirement.

All the isolating valves shall be painted white and complete with padlock or chain lock.


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SH-1

SPRINKLER HEADS

1. GENERAL

The Sub-Contractor shall supply and install all sprinkler heads as shown on the drawings.

The Sub-Contractor shall also supply to the Owner a stock of spare sprinkler heads after

completion of the installation at the written instruction of the Consulting Engineer; the stock

of spare sprinkler heads shall consist of 24 nos. standard and flush type for Ordinary hazard.

The stock shall be increased by 50 per cent where there are more than two installations.

Sprinkler shall be of approved makes and types. Sprinklers shall be of conventional patterndesigned to produce a spherical type of discharge with a proportion of water being thrown

upwards to the ceiling. Sprinklers shall be designed with universal type deflector enabling

the sprinkler to be erected in either the upright or pendent position.

2. CEILING (FLUSH) PATTERN SPRINKLERS

All sprinklers shown in shopping areas, corridors, lobbies, etc. where there is false ceiling

shall be installed pendent with plate flush to the ceiling with the heat-sensitive element below ceiling line. The sprinklers and ceiling plate shall be of satin chromium finish. All

pipework installed shall be concealed within the false ceiling space.

3. STANDARD TYPE SPRINKLERS

All sprinklers shown in the areas without false ceiling shall be of the Standard Type. Theyshall be of standard bronze finish and shall be installed either in the upright or pendent

position according to the direction of the Consulting Engineer on site.

4. SPRINKLER GUARDS

Where sprinklers are liable to accidental or mechanical damaged eg. along vehicle ramps of

where otherwise specified by the Consulting Engineer sprinklers must be protected by

approved metal guards. The stock of spare sprinklers shall include 12 nos. protective

guards.


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SH-2

5. SPRINKLER ORIFICES

Sprinkler shall have the undernoted nominal sizes as approved for the respective Hazard

classes mentioned.

Hazard Class Nominal Size K Factor

Extra light only 10mm 57 + 5%

Ordinary 15 mm 80 + 5%Extra High only 20 mm 115 + 5%

The designed density of discharge for each different class of Hazard shall be as stated in the

Current rules for Automatic Sprinkler Installation issued by the Loss Prevention Council,

United Kingdom.

6. SPRINKLER TEMPERATURE RATINGS

Generally, sprinkler temperature ratings shall be 68oC and shall be colour coded according

to the F.O.C. Rules. The temperature rating of the sprinklers in each area shall be checked

by the Sub-Contractor. Where sprinklers are exposed to direct sunlight, the sprinkler

temperature ratings shall be increased accordingly subject to the approval of the Local Fire

Brigade Authority and the Consulting Engineer. For kitchen and laundry rooms, the

sprinkler heads to be installed shall of high temperature type with a temperature rating of

93oC.


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PP-1

PUMPING PLANTS FOR SPRINKLER SYSTEM

1. GENERAL

The Sub-Contractor shall supply, install, test and commission the pumpsets installation and

other instruments that are required for the efficient operation of the complete sprinkler

system.

All pipework including suction pipe and discharge pipes in connections with the pumps

installation and water tank/s where specified on the drawings shall be included in theSub-Contract.

2. MAIN PUMPSETS

The pumps shall be of the fully imported, multistage, centrifugal, constant speed, singlestage, end suction type.

Two pumpsets shall be supplied and both shall be driven by approved electric motors

conforming strictly to the current FOC Rules and all other local authorities.

Each pump shall be capable of discharging not less than the flow rate specified in the current

edition of the F.O.C. Rules in accordance to the classification of fire hazard against the

height of Sprinkler Head. Tenderers are required to carry out the necessary calculations

relating to the pressure drops of the equipment and fittings selected by capable of providingthe necessary discharge and pressure available at each outlet. Tenderers shall submit

manufacturer's selection charts and data at time of tendering. Factory test certificate shall be

submitted for approval prior to the installation of sprinkler pumpset.

The deliveries shall be connected to the foot of the rising main through a Y-junction piece

and a back pressure valve fitted in each leg of the `Y'.

Means must be provided for the release of air which might become trapped in the upper part

of the pump case, this must be achieved automatically where a pump operates under suction

lift conditions.

The casing shall be of the high grade close grained cast iron with integral connections. The pumps shall be fitted with bronze impeller accurately machined and balanced and rigidly

secured to the stainless steel shaft by means of a square key and streamlined impeller nut.

Case-wear rings shall be of renewable type.


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PP-2

Bearings shall be of the heavy duty designs, adequately sized and effectively sealed against

ingress of dust or moisture. Stuffing boxes shall be fitted with four rings impregnated

asbestos packing plus lantern ring for flushing. A drain shall be provided for each pump

seal and discharge to an approved location.

Metal guards shall be installed over each coupling and belt driven mechanism.

Each pump shall be provided with a name plate stating the performance characteristic as

specified in F.O.C. Rules.

A fall in water pressure in the sprinkler system which is intended to initiate the automaticstarting of the pump shall at the same time provide a visual and audible alarm at the Master

Indicator and alarm panel. The starting of the pump or pumps shall not cause the

cancellations of the alarm.

Visual and audible indication of pump or pumps operation, pump or pumps fail to operate

and power or phase failure to the motor starting switch shall also be provided at the Master

Indicator and alarm panel.

Power for the above warning systems must be taken from a separately switched sub-circuit

to that feeding the pump in the case of an electric pump. In the case of compressionignition engine driven pumps the power for the warning system must not be taken from the

battery which is used for automatic starting. Where power is taken from battery for the

warning system, the battery must be trickle charged and have a capacity sufficient to provide

an alarm for 72 hours duration.

Both pumps shall be directly driven by an approved totally enclosed fan cooled squirrel cage

motor. Motors shall be equipped with sleeve bearings. The motors shall be suitable for 415

volts 3 phase 50 hertz supply and with Class `E' insulation.

The electrical connections shall be such that power supply is always available for the motor

when the switches for the distribution of other power throughout the premises are open.

Any switches on the power feed to the motor must be clearly labelled "Sprinkler Pump

Motor Supply - Not To Be Switched off in the Event of Fire".

A tell-tale indicator lamp or lamps shall be provided to show that there is a power supply

available for the motor. The failure of any one phase of the A.C. supply shall be indicated.The indicator must be in the vicinity of the pump and so placed that it can be readily seen bymaintenance personnel. All indicator lamps shall be duplicate or twin lamps.


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PP-3

An ammeter shall be fitted to give an indicator of current and possible overload.

High rupturing capacity fuses installed must be capable of:

i) Protecting the cable connection to the motor;

i) Carrying the stalled current of the motor for a period of not less than 75 percent of

the period which such a current would cause the motor windings to fail.

Any no-volt release mechanism must be of the automatic resetting type such that on

restoration of the supply the motor can restart automatically. Magnetic and thermal overloadtrips are not allowed.

3. JOCKEY PUMP

It shall be of the automatic vertical multi-stage pressure maintenance pump designed with a

steep performance characteristic for positive cut in and cut out sequence operation. It shall

be able to provide at the same time the necessary flow rate of 20 igpm against the necessary

head when the system is operating.

The impellers shall be of stainless steel with steel shaft. The suction and delivery chambersshall be of the fine grained cast iron. Intermediate chambers shall be either stainless steel or

fine grained cast iron.

The bearings shall be rubber-water lubricated and designed for the duty concerned.

The motor shall be totally enclosed fan cooled type with Class E insulation and suitable for

415 volts, 3 phase, 50 cycles supply.

The operation shall be governed by a pressure switch in the trunk main set to cut in the pump when the pressure reduced to a predetermined value.

The electrical connections shall be such that a power supply is always available for the

motor when the switches for the distribution of other power throughout the premises are

open.

A tell tale indicator lamp or lamps shall be provided to show that there is a power supplyavailable for the motor. The failure of any one phase of the A.C. supply shall be indicated.


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PP-4

4. PUMP OPERATION

The pumps must start automatically and shall be fully operational within 30 seconds after

starting. The automatic starting device for duty and standby pumps shall be of an approved

pattern and set to operate when the pressure in the trunk main has fallen to a value not lessthan 80 percent of the pressure in the trunk main when the pump is churning.

The first automatic starting device shall bring the duty pumpset into operation and if due to

electrical or mechanical failure, the duty pumpset fails to function satisfactorily the pressure

in the trunk main shall continue to fall.

The second automatic starting device, set to operate at a lower pressure than the first device,

shall then bring the standby pumpset into operation.

A manual changeover switch shall also be provided.

Means shall also be provided for manual starting by reducing the pressure. Once started, the

standby pump must run continuously until stopped manually.

The jockey (make-up) pump installed shall operate before the main pumps to maintain the

system pressure against any small losses and shall be able to provide at the same time thenecessary flow rate of 30 igpm against the necessary head.


25/66

EL-1

ELECTRICAL DETAILS

1. GENERAL

The sub-contractor shall supply, deliver, install and set into operation all motors,

switchboards, switchgears, control systems and all other necessary equipments and materials

that are required for the efficient and economic operation of the complete Fire Fighting

System together with all incidental work pertaining thereto even though not specifically

mentioned herein or shown on the drawings.

All electrical work and workmanship on materials covered by this section shall conform to

the best principles of modern engineering practice and be of first grade quality as to design,

manufacture and installation.

2. PUMPING PLANT SWITCHBOARDS

The switchboards shall be of the self-contained, extensible, wall-mounting and flush fronted

metal cubicle type. It shall house contactors, starters, relays, fused switches, selectors andisolating switches, fuse distribution boards, meters, busbars, indicating lamp and switch and

all other necessary items of equipment whether specified hereinafter or not.

The switchboards shall be suitable for operating on a 415 volts 3 phase, 50 cycles supply

system operating with solidly earthed neutral.

Each cubicle framework shall be fabricated from rolled steel angle sections and shall be of

rigid construction with all joints welded and ground. They shall be of standard size uniformin height and depth from front to back.

The door, side panels, and cubicle roof shall be constructed from not less than No. 12 s.w.g.

steel sheet with turned edges to the front panels and so formed as to provide a neatappearance.

The front top and back of all cubicles shall be finished as specified with end plates and

heads of any external fixing bolts or set screws similarly finished except those steel partsnormally left bright which shall be cadmium plated and operating parts finished semi-gloss

black. The doors shall be provided with a car type lockable handle and of such construction

that the door cannot be opened unless the isolator switch or handle is first turned to the OFF

position thereby cutting off the electric power supply to the electrical mechanism inside the

cubicle switchboards.

To ensure dust-proof locking arrangements, felt rubber insert gaskets shall be incorporated

in the frames of the switchboards. The doors shall be fitted on the inside with shelves for storing of spare cartridge fuses and contactors and electrical circuit diagram.


26/66

EL-2

All incoming and outgoing circuits and wiring shall be brought to the contactors, starters,

relays and controllers via insulated terminal strips mounted within the cubicle. All wiring

between terminal strips and electrical equipment inside the control panel shall be neatly run

and taped in accordance with the requirements of IEE.

All secondary wiring shall be of not less than 1.5mm2

section insulated with PVC and shall

be fixed securely without strain by cleats of the compression type. For the purpose of

identification, different insulation colour shall be provided to distinguish the various circuits

and each connection shall terminate at an approved type of terminal block placed in an

easily accessible position for testing at site with coded ferrules of an approved type at both

ends of each conductor. No connectors or soldered joints shall be permitted in the wiring.The wiring shall be formed in a neat and systematic manner, with cables supported clear of panels and without crossovers. Bushes shall be provided as necessary to prevent chafting of

cables.

Meter panels shall be hinged to provide ready access to connections and small wiring shall

be enclosed in flexible plastic conduit. All meters and relays shall be fully tropicalised. All

terminals shall be completely insulated and potential circuits shall be suitably fused.

All cubicles shall be appropriately labelled to indicate the service. Labels shall also be provided to identify all items of equipment, circuits, cable and where applicable current

rating of fuses and setting of relays. Labels on the exterior of equipment shall be clear

perspex, reverse engraved, filled flush with black (or red and suitable) filling and the back

painted the same colour as the equipment. Labels shall be attached by means of machine

screws and nuts or machine screws driven into drilled and tapped holes.

Prior to despatch from the manufacturers works all metal work shall be thoroughly cleaned

and degreased and treated with a rust-inhibiting primer, followed by at least two coats of

durable good quality, oil and weather resistant paint, finished grey to colour 631 of B.S.381C. All painting shall be made good at site prior to commissioning.

All wiring shall be carried out with PVC cables in fabricated conduits and shall be run

strictly in accordance with the requirements of IEE regulation and local authority with

jurisdiction over the installation. All cables in which links or abrasions occur shall be

rejected and shall be replaced by the Sub-contractor at his own expense.

All cables shall be of approved manufacture and shall be of distinguishing colours for their specified applications.

Bending radius of cables shall be not less than eight times the overall cable diameter. The

cables shall be terminated at a brass junction box near the motor or equipment terminal block and at earth bar inside the switchboard. The connection between the junction box and

equipment or motors shall be made by PVC cables and PVC heavy duty flexible conduit

fitted with approved brass screw type flexible conduit couplings. Cables from above 6mm2

shall be terminated with a lug type of grip cables sockets of approved manufacture.


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EL-3

A steel sleeve shall be provided where MICC cable passes through a concrete floor and shall

extend at least 7 inches above the floor to afford mechanical protection to the cable. The

sleeve shall be effectively sealed with bitumen after the cables have been inserted.

Polyvinyl chloride (PVC) cables shall be of the 440/250V grade and manufactured to B.S.S.

2004 : 14E61. PVC insulated cables may be used where cables are installed in conduit or

trunking; but where cables are installed in plaster, in exposed positions or partly run in

conduit and continued concealed directly in plaster or run on the surface of walls and

ceilings, PVC insulated and sheathed type must be used.

PVC cables shall be installed in rigid conduits fixed to walls, metalworks, ceiling or buriedin the ground. Conduits shall be of Class `B' medium gauge, screwed steel type, andtogether with conduit, fittings shall comply with B.S.S> 31 : 14E40. All conduits and

fittings shall be galvanised and the water or gas pipe shall be prohibited. Conduits bearing

traces of rust or damage shall not be used.

Conduits shall be of sufficiently large sections and so arranged with draw-in bones to allow

for either an easy draw in or out of one or all of the cables, the total number of which must

not exceed the number set out in Table B.5M of the current edition of the IEE Regulations.

All conduits shall be mechanically and electrically continuous throughout and shall be

efficiently earthed with heavy copper wire or tape and screw-on clips. No conduit shall be

less than 20mm. in outside diameter.

Conduit terminations to loop in boxes shall consist of a screwed socket and smooth bore

bush, but to adaptable boxes, fuseboards, etc. termination shall consist of a flangedcoupling, lead washers and smooth bore bush.

Where conduits are exposed to damp situations, or are buried in the ground they shall bemade completely water tight by treating all joints with red lead.

3. ELECTRIC MOTORS

Electric motors shall be of 3 phase 415 volts 50 cycles supply for 1 H.P. and above and for

motors of less than 1 H.P. may be of 1 phase 240 volt 50 cycle supply.

Motors shall be of the totally enclosed fan cooled type to B.S. 24E62 Part 2. Adequate precautions shall be taken to prevent the ingress of moisture. All motors shall be in

accordance with B.S. 2613 and B.S. 2757 with Class `E' insulation to B.S. 2757. Motors

shall be continuously rated (C.M.R. category of B.S. 2613) and shall have torque

characteristics as required by their respective duties.

All motors shall be adequately earthed to meet the requirements of IEE regulation.


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EL-4

Motor starters shall be in accordance with B.S. 587. Where remote control is required,

starters shall be contactor type with coils wound for 240 volts 50 cycles supply. All starter

cubicles shall be fitted with thermostatically controlled heats to maintain the temperature

within the cubicle above dewpoint. Heaters shall generally be located at the bottom of thecubicle with the thermostat at the top. The heater terminal at the motor and starter shall be

clearly labelled.

"Caution - Motor Heater - Alive When Motor Stopped".

Power factor correction capacitors shall be provided as required to correct the power factor

for all motors over 2 H.P. in size to 0.85 lagging or better at all loads. The capacitors shall be installed adjacent to the motors and complete with necessary protection fuses, dischargeresistors and all wiring and connections.

The rating of motors shall be such that they will not be over loaded at any points within the

range of operation of the equipment connected and shall be of adequate rating and starting

characteristics to allow equipment to be brought up to speed on starting in reasonable time.

Bearing shall be of ball or roller sleeve type as applicable. Terminal boxes with gasket

cover shall be provided suitable for reception of screwed conduit entry or MICC cable as

required.

The supply to each motor shall be controlled by means of an efficient cut-off switch placed

in such a position as to be easily handled by the person in charge of the motors, and

connected such that the power supply can be cut off from the motors and from the regularly

switch resistances or other devices connected to it.

Motors arranged for remote control shall be provided with a similar cut-off switch or

switches fitted at the motor positions.


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VN-1

VIBRATION AND NOISE ISOLATION

1. GENERAL

The Sub-Contractor shall supply, install, test and commission all the vibration and noise

isolation materials as specified hereinafter.

2. SPRINKLER PUMPSETS

Unless otherwise stated, all sprinkler pumpsets shall be mounted on an integral welded base

frame of minimum 150mm high steel channels with spring mountings supporting the base

on out-riggers similar to ‘Mason’ frames, ‘Kinetics’ frames or approved equivalent. Base

shall be large enough to support the first pipe elbows.

The base frame and spring mountings are to be mounted on a minimum 100mm. high plinthor foot pads. The minimum clearance between the base frame and the floor or plinth is to be

100mm.

Spring mountings shall be similar to ‘Mason’, ‘Kinetics’ or approved equivalent and shall

be free standing and laterally stable without any housing and complete with 8mm to 10mm

neoprene acoustical friction pads between the base plate and the support. All mountings

shall have levelling bolts that must be rigidly bolted to the equipment. Spring diameters

shall be no less than 0.8 of the compressed height of the spring at rated load. Springs shall

have a minimum additional travel to solid equal to 50% of the rated deflection. The springstatic deflection shall be as recommended by the Manufacturer.

3. PIPEWORKS

The first three pipe hangers in the main lines in the pump room shall be similar to Mason

Type PC30N or approved equivalent. The vibration hangers shall contain a steel spring and0.3m deflection neoprene element in series. Details shall be submitted for the Consultant’s

approval.


30/66

SC-1

SPRINKLER CONTROL VALVES INSTALLATION

1. GENERAL

The Sub-Contractor shall supply, install, test and commission the Fire Fighting Sprinkler Control Valves installation and other instruments that are required for the efficient operationof the complete Fire Fighting Sprinkler System.

2. WATER SUPPLY

The water supply for the Automatic Sprinkler Installation is a superior water supply as

defined by the F.O.C. Two automatic main pumpsets, each of which is capable of providing

independently the necessary pressures and flows for the respective hazard class are beinginstalled to draw water from the suction tank/s under positive head conditions.

The water pressure and flow conditions at the installation control valve/s shall conform to

the respective hazard class as specified in clause 2300 of the F.O.C.

3. INSTALLATION CONTROL VALVES

Each installation shall be provided with a set of installation control valves comprising of amain stop valve, an alarm check valve (wet pipe) and a water motor alarm and gong.

a) Main Stop Valve

Main stop valve when closed shall shut off all supply of water to the installation. All stop

valves controlling water supply shall be secured open by a padlocked strap. All stop valves

shall be right handed and the controlling wheels shall be clearly marked showing in which

direction the wheels are to be turned to keep the valves open or shut.

A plan showing the position of the main stop valve or valves clearly indicated thereon shall

be placed within the building where it can be readily seen by firemen or others responding to

the alarm. In addition, a location plate shall be fixed on the outside of an external wall, as

near to the main stop valve as possible, bearing the words in raised letter "Sprinkler Stop

Valve".


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SC-2

Alarm valve shall be supplied and fixed on the main supply pipe immediately above the

main stop valve. The alarm check valve shall be of the full flow pattern to minimisehydraulic friction loss at large flows. It shall be of approved type and shall incorporate

retard chamber where required to prevent false alarm and also shall have all necessaryconnections to pressure gauges, water motor alarm, combined drain and test valve, etc.

c. Water Motor Alarms

Water motor alarm shall be of approved type and shall be supplied and fitted as near to

the alarm valve as practicable and in any case the total length of pipework shall not

exceed 25m. The water motor alarm shall not be located higher than 6m above the valve.

Each water motor alarm shall comprise of a fire alarm gong with a water turbine to

operate when sprinklers are operating. The pipework shall be galvanised and shall be

20mm diameter. Each water motor alarm shall be arranged to drain through a fitting

having an orifice not larger than 3mm diameter. The orifice plates shall be either of stainless steel or of suitable non-ferrous material such that the hole will not become blocked by corrosion. Drain lines shall be drained to the nearest floor waste.

4. BACK PRESSURE VALVE

Where there is more than one water supply to an installation, one number back pressure

(non-return) valve shall be flanged and connected to each water supply connection. The

valve shall be of the straightaway pattern, placed in a horizontal position. A test cock for

testing the valve shall be provided.

5. PUMPING-IN-BREECHING

A two-way pumping-in breeching inlet for pipes 100mm dia. and a four-way pumping in

breeching inlets for pipes 150mm dia. to enable the Fire brigade to pump water into the

installation by the use of their own equipment shall be provided. The fire brigade inlets

shall be to the approval of the Local Fire Brigade Authority. The breechings shall have

polished aluminium bodies with gun metal connections unless otherwise approved by theConsulting Engineer. The breechings shall be enclosed in a suitable glass-fronted box withspring locks and words painted to approval.


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SC-3

6. PRESSURE GAUGES

Pressure gauges shall conform to B.S. 1780 and shall be of minimum 150mm. dia. dial

type of Budenberg or equally approved manufacture. The scale value of the gauges shall be of the order of 150 per cent of the maximum known pressure. Pressure gauges shall

have scales with divisions not exceeding 0.2b for a maximum scale value of 10b, not

exceeding 1b for a maximum scale value in excess of 16b. The pressure gauges shall

also indicate readings in p.s.i.g.

A pressure gauge shall be fitted immediately above the alarm valve and another

immediately below the alarm and main stop valves. Means shall be provided to enable

each pressure gauge to be readily removed without interruption of installation of water

supplies.

7. DIRECT BRIGADE ALARM CIRCUIT

Where required a direct Brigade Alarm Circuit shall be supplied and installed to connectthe building to the appropriate local Fire Brigade Station. The apparatus including the

alarm switch and control unit shall be of approved type. Alarm signals shall be initiated

by a flow of water in the sprinkler system using water flow alarm switches, in the system

pipework above the alarm valve. Switches must be sufficiently sensitive to operate when

only one sprinkler is actuated. Adequate means shall be provided for frequent testing to

the approval of the local Fire Brigade Authority. The Sub-Contractor shall make all

necessary arrangements with the relevant Authorities having jurisdiction over theinstallation and pay all charges which may be due during the 12 months maintenance

period, for direct brigade alarm circuits. Where connections are to be carried out by theAuthorities, the contribution to the expenses shall be borne by the Owner of the Building.

If at any time the connection to the Fire Brigade is severed, the attention must be

automatically drawn to this fact by means of duplicate warning lights conspicuously

placed and a buzzer.

8. WATER FLOW ALARM SWITCH

Water flow alarm switch (electrically operated) shall be supplied and fitted to indicate on

a central control panel the particular section of the system which is operating. A 12mm

dia. valve test line drained to the nearest floor waste shall be supplied and installed on thedown-stream side of the flow switch. The valve shall be padlocked in the closed

positions. Flow switch must be of F.O.C. approved.


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FA-1

ADDRESSABLE FIRE ALARM/DETECTOR SYSTEM

1. GENERAL

The complete addressable analogue automatic fire alarm and detection system shall

comprise of a main fire alarm control panel, addressable analogue detectors and interfaces,non-addressable devices, wiring and related accessories. It shall be commissioned by thespecialist supplier of the manufacturer who commissioned by the specialist supplier of the

manufacturer who shall provide the necessary skills required to ensure the proper function

of the complete system to the satisfaction and approval of the relevant Fire Authority and

according to British Standards for Automatic Fire Alarm System. The main control panel

and the detectors or interface shall be proprietary type.

2. SYSTEM DESCRIPTION AND OPERATION

The system shall incorporate the latest microcomputer technology in Addressable Analogue

Fire Alarm and Detection System. It shall also be easily integrated to other computer based

systems such as Building automation system. The system shall have the following

operational features.

The system shall automatically set the number of addresses in the system or have an option

to set manually with dip switches.

The data or text of detectors should be easily altered or added on site immediately by using

the arrow keypads in the panel should there be, in the future, any change or addition of

detectors.

To continually assess detector signals with its dynamic electronic filters to reduce or

increase its alarm limit automatically to detect a smoldering fire or to avoid an early Pre-

alarm form a contaminated detector.

With the dynamic electronic filters, it must also be able to recognise and avoid an alarm

from detector that is subjected to welding, pipe/cigarette smoke, dampness, climatic changes

and electrical spikes.

It shall incorporate an alarm organisation features should it be desired to raise an alarm only

if two smoke or heat detectors are activated.

It shall have a “Beyond Limit” function to enable the servicing personnel to command themain control panel to show only the detectors that need to be serviced.

The main control panel shall be able to show the sensitivity level of any detectors in the

system.


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FA-2

All detectors shall have a customer data text of up to 2 lines of 40 characters to appear in the

LCD screen in the event of fault, pre-alarm or an alarm to enable the user to locate their precise location.

To continually scan the entire system and detection devices to report any changes in status

of any device attached to it, by a numerical address, together with its corresponding status

(Fault, Pre-warning or Alarm).

To allow interfacing of non-addressable devices into the main system such as automatic

FM200 panel and flow switches.

The panel must be able to display all those detectors that are polluted when commanded.

To allow continuous two wire parallel looping of all addressable devices along each loop

and yet enabling each addressable device to function individually and independently.

The system shall be compact stand-alone unit and capable of interfacing with other microprocessor based equipment to provide facilities such as Video Displays, printer,

synthesizers, telecourier paging, remote logic displays and others.

To isolate or disable any selected address or group of addresses at will for any duration of

time and to store for recall, such information or isolated addresses. The isolated or disabled

addresses must automatically be reinstated into the system after the expiry of the duration of

isolation.

To provide self diagnostic features for various system faults.

To be able to store up to 20 last alarms, pre-alarms, detector faults, loop-faults, system fault

and all disblings and a Historics of up to 150 events.

The system shall have the capability to have slave panels for decentralisation. The slave

panel shall have the necessary outputs and inputs so as to be able to stand-alone in the eventof communication breakdown with the main operating control panel.

3. MAIN OPERATING FIRE ALARM CONTROL PANEL

The main operating fire alarm control panel shall be for floor, wall or console mounting,with provision for standard 19” rack mounting onto standard 19” mounting cabinets of

anodized aluminium and steel, not more than 542 x 1919 x 477mm (W x H x D).

It must have a standard 2x40 word characters digital text logic display to indicate alarmlocation and other relevant information. It must also be able to record fault, pre-warning,

alarm messages and detectors that need to be serviced and sensitivity of all detectors.

The main operating fire alarm control panel must be user friendly to enable the user to

operate easily with only one push button to accept any fault, pre-alarm or alarm condition.


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FA-3

It must have simple keypads to uncomplicate execution of user or service functions.

The main operating panel must incorporate a test function to test front panel lamps, printer,

outputs for mimics or other function, bells or sirens and others.

Any alteration of customer data text and system configuration must be protected by a

password to prevent unauthorised amendments.

All users and service functions must be in menu-driven format to enable an easy step-by-

step operation.

All outputs from the main panel must be freely programmable.

The internal digital clock must operate independently of any power supply and the time

easily set if desired.

4. SYSTEM WIRING

Screen cables are not necessary. The lopping cable shall be only a pair of PVC cables with

a core size of 2.5mm2

connecting all the addresses in parallel, terminating at the last detector

and penal. Balancing or teeing-off at any detector points is allowed. The maximum loop

resistance shall not exceed 30 Ohms. A core size of 2.5mm2

can wire the detectors up to

2.15km, the distance between the main control panel to the furthest detector point. External

cable shall be of armoured cable.

5. CONTROL OUTPUTS

Control and digital outputs must be freely programmable as standard provision. Voltage

free contacts must be a standard provision.

6 DIGITAL DISPLAYS

The digital display must have a provision for 2x40 characters and is freely programmable tocustom designed texts.

7. OPERATING PANEL INDICATIONS

The main operating control panel shall be provided with the following indications :

FIRE - Red sign, lights when and address has an alarmstatus.

MORE ALARMS - Red sign, lights when more than one address is

in alarm.


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FA-4

“SPARE LAMP” - Ditto

“SPARE LAMP” - Ditto

ALARM ON HOLD - Yellow sign, lights when an address in alarm is

still in alarm condition when reset.

PRE WARNING - Yellow sign, lights when an address hasreached pre warning level.

FAULT - Yellow sign, lights when there is fault

continues to blink until “Sounder silence” key

is pressed.

FUNCTION DISABLED - Yellow sign, lights when an address or any parts of the system is disable (disconnected).

MAINS - Green sign, lights when the panel is supplied

with 220 VAC.

8. IONISATION TYPE SMOKE DETECTOR

The ionisation smoke detector shall have an ionisation chamber to detect small

concentrations of mainly small particles of combustion products. It shall incorporate anelectronic devise with binary code to signal its identity along the same detector loop. Upon

being scanned/addressed the detector shall issue a current pulse of appropriate duration tosignal its level so sensitivity at that time.

Detection Principle : Ionisation chamber

Material Source : Americium 241 (0.9 micro curies)

Sensitivity : According to EN-54 part 7

Working Voltage : 12 to VDC

Quiescent current : 0.3 MA

Alarm current : 35 MA

Material construction : Self extinguishing polycarbonate

Weight : 290 gm

Encapsulation : IP32

Humidity (no condensation) : 90% R.H.


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FA-5

Working temperature : - 30o

to +70o

9. HEAT DETECTOR - COMBINED RATE OF RISE/FIXED TEMP.

The heat detector shall be of grade 1 type to detect in the fastest response time. It shall

incorporate an electronic device with binary code to signal its identity along the samedetector loop. Upon being scanned / addressed, the detector shall issue a current pulse of

appropriate duration to signal its level of sensitivity at that time.

Detection principle : Thermistor sensor

Sensitivity : Grade 1 according to EN 54 part 5

Working Voltage : 12 to 16 VDC

Quiescent current : 0.1 MA

Alarm current : 35 MA

Material construction : Self extinguishing polycarbonate

Weight : 280 gm

Encapsulation : IP 32

Humidity (No condensation) : 90% R.H.

Working Temperature : -30o

to +70o

10. INTERFACE DEVICE

The interface device shall be an electronic device for interfacing detection devices or

potential-free contacts onto a monitored detector loop, to form a sub-loop. It shall

incorporate and electronic device with binary code to signal its identity along the detector

loop. Upon being scanned / addressed it shall issue a current pulse of appropriate durationto signal its sensitivity at that time.

11. MANUAL BREAKGLASS/CALLPOINTS

The manual breakglass / callpoint shall be of single action type, suitable for flush / recessed

mounting. The overall colour shall be signal red and breaking of the glass cover shall

automatically initiate an alarm to override any delay functions set in the panel. The glass

cover must be breakable by pressing it with an appropriate pressure and it shall be shattered

proof.


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FA-6

Working Voltage : 12 to 16 VDC

Alarm current : 0.15 MA

Weight : 35 MA

Encapsulation : IP 54

Material : Red Thermoplastics


39/66

MA-1

MASTER ALARM CONTROL PANEL

1. GENERAL

The design, operation and construction of the panel shall strictly conform to the currentrequirements of the Local Fire Authority and the specification herein stated.

2. CONSTRUCTION

The panel shall be of the self-contained, extensible, wall-mounting and flush fronted

metal cubicle type. It shall house relays, contactors, indicating lamps and other necessary

items of equipment specified herein and/or required for the proper function of the system

to the current requirements of the Local Fire Authority.

The panel shall be designed for indoor service with an ambient temperature of up to

105oF with 100% RH at maximum continuous rating without exceeding the maximum

temperature permitted by the relevant B.S. Specifications.

Each cubicle framework shall be fabricated from rolled steel angle sections and shall be

rigid construction with all joints welded and ground. They shall be of standard size

uniform in height and depth from front to back.

The front top and back of all cubicle roof shall be constructed from steel sheet with

turned edges to the front panels and so formed as to provide a neat appearance. The

thickness of material shall be to the approval of Local Fire Authority.

The front top and back of all cubicles shall be finished as specified with end plates and

heads of any external fixing bolts or set screws similarly finished except those steel parts

normally left bright which shall be cadmium plated and operating parts finished

semi-gloss black. The glass door shall be provided with an Allen key lock.

All incoming and outgoing circuits and wiring shall be brought to the contactors, relays,

etc. via insulated terminal strips mounted within the cubicle. All wiring between terminal

strips and electrical equipment inside the panel shall be neatly run and taped in

accordance with the requirements of the Local Supply Authority.

For the purpose of identification, different insulant colours shall be provided to

distinguish the various circuits and each connection shall terminate at an approved typeof terminal block placed in an easily accessible position for testing at site with coded

ferrules of an approved type at both ends of each conductor. No connectors for soldered

joint shall be permitted in the wiring. Bushes shall be permitted in the wiring. Bushes

shall be provided as necessary to prevent chafing of cables.


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MA-2

All meters for panel mounting shall be of the flush pattern, with square escutcheon plates

finished matt black and pressed steel cases. All meters and relays shall be fullytropicalised. All terminals shall be completely insulated and potential circuits shall be

suitably fused.

All cubicles shall be appropriately labelled to indicate the service. Labels shall also be

provided to identify all items of equipment, circuits, cables and where applicable current

rating of fuses and setting of relays.

Label shall be engraved on clear perspex.

3. OPERATION

a. The primary function of the control and indicating equipment shall be to

automatically effect operation of one or more devices to give a fire alarm. Asecondary function of the control and indicating equipment shall be to indicate theexistence of faults within the system. Faults shall be indicated automatically.

An indication of the origin of an alarm is necessary where the premises are large

or intricate. This requires the division of premises into zones. Indication of the

origin of an alarm shall be given on mimic indicating equipment with duplicating

lights indicating each respective zone on the profile of the building.

The control and indicating equipment shall be designed so as to give an indicationand an alarm on the operation of an alarm or operating device where applicable

such as:-

i) Individual fire fighting pumpset in operation

ii) Breakglass points in each respective zone in operation

iii) Other operation of sub-alarm panel and alarm devices where indicatedand/or specified on the drawings and/or herein the specification

iv) Indication of all normal and standby power supply available to the above

operating and alarm devices

It shall initiate other functions where applicable such as the actuation of

the operation of:-

i) Individual fire fighting pumpset

ii) Other equipment where indicated and/or specified on the drawings and/or

the specification herein


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MA-3

a. The wiring from the alarm and control panel to all the above operating

devices shall be by this Contractor. The relays in the operating devices for this purpose shall be provided by others.

All indication lights and actuation devices shall be zoned to identify:-

i) Where the alarm comes from

ii) Type of system in operation

All auxilliary services powered from the control equipment shall be fused

or similarly protected to ensure the safety of the power supply.

b. The operation of one or more devices shall result in a fire alarm being

given by:-

i) At least one internal alarm sounder (indicating equipment shallincorporate a sounder or have one located near to it), and

ii) At least one external alarm sounder, and

iii) A visible indication in the indicating equipment, and

iv) A visible indication for each zone in which a trigger deviceoperates.

In addition to the audible alarms specified in (i) and (ii), facilities shall be

provided to control zone and/or sector alarm sounders.

The audible alarm specified in (i) and the visible indications specified in

(ii) and (iv) shall be given simultaneously on any repeat indication

equipment which may be provided.

Normally a fire alarm shall be given by the continuous operation of the

alarm sounders. The control equipment may be arranged to provide two

stage alarm facilities, whereby a preliminary Alert alarm may be initiated

automatically by the operation of a device, and replaced if required by adistinctive evacuate alarm initiated automatically. When this facility is

provided, the fire alarms given by alarm sounders shall be:-

Alert - 1 second ON ) + 50%1 second OFF )

Evacuate - Continuous (all sounders)


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MA-4

The audible alarms specified in (i) and (ii) shall continue until silenced by

the manual operation of a biased switch or other device fulfilling the samefunction; they shall not be automatically silenced. The operation of the

Silence Switch shall automatically result in an audible signal being givenin the control equipment, until the fire alarm system is reset. The audible

signal, which may be the same as for fault warning, shall give a distinctive

sound different from that of any alarm sounder used to give the fire alarm.

The equipment shall be designed so that, following the silencing of the

alarm sounders, in the event of operation of a trigger device in any zone in

which an alarm has not already been received and silenced, further fire

alarms as specified in (i), (ii), (iii) and (iv) shall be given in all zones.

In a system having two-stage alarm facilities, the control equipment may

be required to intiate automatically an Evacuate alarm in selected zones, or in all zones if devices operate in predetermined zones in combination.

Zone indicators shall be arranged to flash to indicate a newly initiated

alarm. The rate of flashing shall be at 110 +30 flashes per minute, with an

on/off time ratio of between 4:1 and 2:1. When the alarm sounders are

silenced by manual operation of a silence switch, any flashing signal then

existent shall be replaced by a steady signal.

The visual indications specified in (iii) and (iv), and the audible signal thatthe alarm sounders have been silenced shall all persist until the system is

manually reset at the control equipment. Resetting shall be accomplishedonly by the operation of biased switches or other devices fulfilling the

same function.

c. Any fault warning by the control equipment shall be given simultaneously

by:-

i) An audible warning from a sounder situated at the indicatingequipment, preferably within it,

ii) A visible indication on the indicating equipment,

iii) A signal transmitted to a remote centre where a communication of

such a centre is provided.

Any fault warning as specified shall be given in the event of any of thefollowing occurring:-

i) Failure or disconnection of the normal power supply;

ii) Failure or disconnection of the standby power supply;


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MA-5

iii) Failure or disconnection of battery charging equipment;

iv) Failure or disconnection of the leads to alarm device(s);

v) Failure or disconnection of any of the leads to alarm sounders;

vi) Failure of any fuse or protection devices;

vii) Failure of any device, such as a pulse generator, inverter or

oscillator;

viii) Others as required by Fire Authority.

The sounder used for giving fault warning shall be distinctive and of different character from the audible fire alarm. Provision may be made for cancelling the sounder only. Where such provision is made, the removalof the fault shall automatically reset the audible fault warning circuit or

cause the audible fault warning to respond until silenced by the manual

operation of a biased switch or other device fulfilling the same function.

Facilities shall be provided for giving a fault warning on the indicating

equipment in the event of a failure or disconnection of both normal and

standby power supplies.

Each installer of the equipment shall supply for each installation a routinetest schedule, together with a recommended time interval between

successive tests, conformity which will ensure the fault conditions are

recognized before the effectiveness of the system is impaired.

d. Each indicator lamp shall be arranged to give an audible fault warning

immediately on the failure of any lamp at any time.

The arrangement of indicator circuits and the mechanical design of the

apparatus shall be such that the operation of one indicator does not prevent

the proper and separate operation of other indicators.

The operation of any sounder or the transmission of a signal to a remote

centre shall not be prevented by any indicator defect and shall not depend

on the operation of any indicator.

Each fire alarm indicator shall be clearly labelled with the word `Fire',

each fault warning indicator shall be clearly labelled with the word `Fault'.

Each zone indicator shall, on operating, give clear indication of that

section of the premises from which the call originates.


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MA-6

In addition to labelling, each fire alarm indicator shall be coloured red and

each warning indicator shall be coloured amber. The two colours shall not be used for any other indicator.

e. The control equipment shall provide voltages appropriate to the rating of

the interconnected trigger device units and the equipment shall incorporate

overload cut out or limiting devices to protect the external circuit against

excess current.

Where apparatus is to be operated in excess of extra low voltages, all live

parts shall be enclosed in earthed metal, or non-combustible insulating

material.

f. The control and indicating equipment shall derive power from:-

i. The mains electricity supply

ii. A secondary battery exclusive to the fire protection system (Nickel

Cadmium Battery)

A standby power supply shall be immediately available in the event of

failure of the normal supply and shall be automatically connected so as to

maintain the equipment in a condition such that a fire alarm arising from

the operation of a device in two separate zones can subsequently by given.The standby shall be derived from a secondary battery (Nickel Cadmium)

exclusive to the fire protection system.

g. All indication and other circuits within the indicating equipment shall

operate at 24V d.c.

The equipment including all its components shall function satisfactorily at

the nominal mains voltage +10% when tested.

i) With the battery disconnected, and

ii) With the battery connected as for normal duty, &

iii) With the battery connected and in a discharged condition.

h. Battery charging equipment shall incorporate automatic control features

with output designed to charge and maintain the cell within the limitsspecified by the battery manufacturer, taking into account any quiescent

load imposed by the associated system. Loss of effective battery capacity

shall be recognised during the course of a routine test of the system.


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MA-7

Each battery of secondary cells used in the equipment, when charged by

its normal charging arrangements for a period of 24 hours from a fullydischarged condition, shall then have sufficient available power to supply

the quiescent load together with any fault signals resulting from thedisconnection of failure of the alternative power supply for a period of 72

hours. Thereafter it shall be capable of supplying an additional load

resulting from an alarm originating in two separate zones for a period of 1

hour, and it shall in addition be capable of supplying the full emergencyalarm load for a period of at least 1 hour.

i. The equipment shall be examined and certified by person or persons

acceptable/approved by Director General, Fire Services Malaysia, to

confirm that all the requirements of the clauses dealing with control and

indicating equipment for protection premises have been met.


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CD-1

AUTOMATIC CARBON DIOXIDE (CO2) EXTINGUISHING SYSTEM

1. GENERAL

The CO2 system shall be designed to NFPA 12-1980 code and local fire authority

requirements. The concentration shall be minimum 50% at 80.F. The gas release shall be30 seconds after activation of two detectors or operation of manual gas release unit. The

discharge should be substantial completed in a nominal 60 seconds. The system shall besupplied, installed, tested and commissioned by a contractor.

2. SYSTEM OF OPERATION

Activation of one detector shall operate the alarm intermittently, so advising personnel toevacuate. Activation of the second detector shall initiate the 30 seconds time delay for

gas release, shut off exhaust fans, s

fire fighting services

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