building inspection & testing

LECTUREBUILDING INSPECTION

& TESTING

BY: MR JEE YOKE CHOONFIRE SAFETY BUREAU

SCDF

Fire Safety Manager Course – Lecture Building Inspection & Testing

BUILDING INSPECTION AND TESTING

1. INTRODUCTION

Building inspection and testing would basically emphasize the life and safety provisions of buildings. This can be categorized into the following headings :

a. General Building Works Check (fire related matters only).

b. Building Services Check and Operational Tests.

c. Mechanical Ventilation / Air Conditioning Systems Check and Operational Tests

d. Fire Protection Systems Check and Operational Tests.

The principal objectives of carrying out building inspection and testing are:

a. To ensure the safety of all occupants, users and visitors of public buildings, hotels, blocks of dwellings and similar buildings.

b. To reduce the number of fire outbreaks.

c. To restrict the internal spread of fire, to prevent the collapse of structure and to reduce damage to both the structure and fixtures, fittings and contents.

d. To prevent, as far as possible, the spread of fire to neighboring buildings.

e. To ensure the rapid evacuation of lives in the event of fire.

2. GENERAL BUILDING WORKS CHECK

The reasons for carrying out general building works check are to ensure the following:

2.1 BASEMENTS

i) Smoke extract glass blocks (pavement lights), if provided, are clear of obstruction.

Module 2 2


2.2 PROTECTED AREA/CORRIDORS/LOBBIES/PASSAGEWAYS/STAIRCASES

i) Standards stairway numbering system provided for staircases. The numbering system should follow the new “storey”

numbering systems (e.g. ground level should read “1st storey”, first level below ground as “basement” and so on)

ii) Such areas are clear of obstruction.

iii) Full compartment is retained especially when renovation works have been done.

iv) Services pipes (gas, oil and ventilation) other than water pipes are not passing through these protected zones.

v) Permanent floor plans with escape routes indicated are provided at the lobbies.

vi) Finishes to walls, floors and ceilings are non-combustible.

2.3 ESCAPE ROUTES

i) Free of obstruction and storage of any forms.

ii) EXIT signs and directional signs are sufficiently provided.

iii) Final exit discharge points not obstructed

iv) Door release devices for emergency doors are in good working condition.Procedure for opening only doors such be prominently displayed.

2.4 FIRE DOORS

i) ½ hour fire door are 45 mm thick hardwood and in good condition. ( ½ hour door installed before March 1989 )

ii) Door closers are provided and are in good working condition.

iii) PSB labels provided for all fire doors.

iv) No door stopper devices installed. Only electromagnetic door retainers which are demagnetized upon activation of fire alarm system may be permitted.

Module 2 3


v) Doors are close-fitting.

vi) Swing of doors in direction of escape.

vii) Clear of obstruction.

viii) Vision panel not exceeding 45,000 sq mm

ix) Sequential door closer provided for double-leaf fire door.

x) No form of locking devices for doors opening to the fire fighting staircases.

xi) Doors opening into the means of escape are readily opened manually and are not held open by any means.

2.5 EXIT DOORS

i) Doors unlocked

ii) Clear of obstruction

2.6 DUCT RISERS

i) No storage of materials.

ii) Any openings for services penetrations and cable shaft are effectively fire-stopped.

iii) Doors to risers are locked where access is not required except for maintenance purposes only.

2.7 COLD ROOMS

i) Door capable of being opened from within.

2.8 MISCELLANEOUS

i) Possible increased fire risks within building.In this respect, wall-papering, carpeting, storage of combustible materials especially within protected areas which might contribute towards increased fire risk are not permitted.

Module 2 4


ii) Unauthorized change of use, for example, designated hotel guest-room converted to offices, etc.

iii) Unauthorized partition works, building works.

iv) Usage of false ceiling space for storage purposes especially within shopping areas.

v) No obstruction to driveway access for fire engines.

vi) “No storage” signage provided for areas nor designed as store, e.g. accessible spare space in duct risers, stairs, hosereel cabinets, etc.

vii) Essential signage, e.g. “Fire Extinguisher”, “Hosereel”, “Dry Riser Outlet”, “Fire Engine Access”, etc are displayed where necessary.

2.9 CINEMAS

a) Auditorium

i) Approved seating capacity adhered to. No additional (unauthorized) seats have been “squeezed” in.

ii) Seats are firmly fixed.

iii) Passageways, aisles are clear of obstruction.

iv) Exit doors provided with panic bolts and open outwards in direction of escape.

v) Exit doors open smoothly.

vi) Flickering light functioning upon activation of alarm system

vii) Floor cleared of refuse

b) Stage

i) No storage behind the projection screen/below stage

c) Projection Room

i) “No smoking” notices displayed

Module 2 5


ii) Shutters are operating smoothly and releasable in one operation.

3. BUILDING SERVICES CHECK AND OPERATIONAL TESTS

3.1 LIFTS INSTALLATIONS (SS CP 2: 1979)

a) General

i) Minimum 0.1 m shaft ventilation opening to external provided.

ii) Enclosed lift shaft protected by smoke detector.

iii) Signage “In case of fire, do not use lift” prominently displayed at each lift landing.

b) Lift Homing

i) All Lifts shall be checked under fire alarm activation (CI 26.3) and under secondary power supply (CI 26.2) except for those serving residential areas. Lifts cars will be in normal operation, either travelling, upwards or downwards but not stationary at the homing level, before the activation of the fire alarm system or the simulation of the PUB power failure. All lifts cars shall eventually home down to designated level (normally 1st storey), doors remain open and the lift rendered inoperative.

In the case of homing under fire alarm, lifts should revert to normal operation only after manually resetting the lift system.

ii) Warning notice for fire situation provided (CI 26.8)

iii) 2 way intercom system provided and in working condition

Module 2 6


iv) Test on SISIR approved EBOPS (CI 25):

2 personnel will be involved for this test, one of them stationed in the lift motor room and the other, in the other, in the lift car which has been landed at the highest storey served.

The one in the lift motor room will:

I) Check that the emergency battery is provided and properly affixed with SISIR label

II) Cut off the mains power supply. The person in the lift car will then witness the change-over of power supply and ensure that at least one of the lift car lights is on, the fan is running and test the functioning of the alarm bell under the secondary power from the battery.

III) Cut off the battery power supply in addition to (II) above. The person in the lift car witness that the car light, fan, alarm bell are turned off. This is done to ensure that the battery was actually supplying the power previously when the mains was cut off.

IV) Check that the battery is being charged by the mains under normal circumstances.

c) Testing of Fire Lifts

i) ))

ii) ) Similar checks as for “Testing of Passenger) Lifts”

iii) ))

iv) ))

v) ) Operation under fire switch (CI 31.2)

Module 2 7


I) Upon Switching on the fireman’s switch,fire lifts (in motion) shall ignore all

other calls and land on the designated storey (normally at ground level with the door open.)

II) Operation of fire lift to be such that it responds to internal car calls only

(Fireman’s Operation).Fireman’s operation to be sustained upon

switching on of fireman’s switch, during alarm activation and after lift homing.

III) Time taken to travel from lowest to highest storey served to be within I minute.

IV) Fire lifts shall continue to operate under secondary power supply (generator).

V) Labelling “Fire Lift” provided.

VI) Fire Switch is properly enclosed in labelled glass fronted cover.

3.2 EMERGENCY/EXIT AND LIGHTING (SS CP 19:1981)

a) General

i) Exit signs and emergency lighting adequately provided along escape routes public areas, staircases and in essential services areas.

ii) Exit signs are visible.

iii) Directional exit signs provided where necessary.

iv) Illumination level sufficient

v) Exit signs comply with CP 19 colour code (White letterings on green background).

Module 2 8


vi) If switch control is provided for emergency/exit signs and lighting, such switches should be preferably be accessible only to authorized personnel.

b) Battery Operated Fixtures

i) Automatic operation upon simulated PUB powerfailure.

ii) Manual Test facility provided to check batterycondition.

c) Generator Supplier Fixtures

i) Automatic operation upon simulated PUB failure.

3.3 VOICE COMMUNICATOR SYSTEMS (SS CP 25: 1999)

Where such a system is installed (normally for high rise buildings):

i) Intercommunication provided between the Fire Command Centre and various strategic locations such as fire lifts lobbies, fire pump rooms, AHU rooms, lifts motor rooms, etc.

ii) Provision of system at every level (usually within protected staircases).

iii) Testing to ascertain system is in good working condition.

4. MECHANICAL VENTILATION/AIR CONDITIONING SYSTEMS CHECK AND OPERATIONAL TEST

4.1 GENERAL TESTING

To confirm :-

i) Independent systems for protected lobbies connected tosecondary power supply.

ii) Motorized fire dampers (if any) connected to secondarypower supply and fire alarm system.

Module 2 9


iii) Fire pump room ventilation fans connected to secondaryrooms

4.2 TESTING OF BASEMENT CAR PARK MECHANICAL VENTILATION SYSTEM

i) Automatic operation of system under secondary powersupply and upon activation of fire alarm system.

iii) Failure of the exhaust fan will cut off the corresponding supply fan.

4.3 TESTING OF BASEMENT CAR PARK SMOKE EXTRACTSYSTEM

i) Automatic operation of system under secondary power supply and upon activation of fire alarm system.

ii) Failure of the exhaust fan will cut the corresponding supply fan

4.4 TESTING OF ATRIUM SMOKE CONTROL SYSTEM

i) System activation under fire alarm

ii) System functions under secondary power supply

iii) Supply mode is automatically activated by the fire alarm under secondary power supply (where applicable).

iv) System should continue operating until the exhaust fans are individually and manually reset.

v) Manual activation facility provided and in working condition.

4.5 TESTING OF PRESSURIZATION SYSTEM

i) Upon activation of fire system.

I) Fan operates at high speed (if single fan installed).II) Both fans operate (if double fans installed).

ii) Fan(s) continue operating under secondary power supply.

Module 2 10


iii) The average air flow velocity across doors ,when the doors of any 2 consecutive storeys and the main discharge storey are opened simultaneously, should not be less than 1 m/s

iv) The force required to open any door (to the staircase concerned) should not be more than 110 N

v) Fan operation can only be stopped manually.

4.6 TESTING OF THE AIR HANDLING UNIT

i) The smoke detector installed within the return air stream will be tested by smoke injection and its activation

should be trip off the AHU. If more than 1 detector is installed (due to 2 or more return air streams) the activation of any one detector should be able to trip off the AHU.

iii) AHU can only be reset manually.

5. FIRE PROTECTION SYSTEMS CHECK AND OPERATIONALTESTS

5.1 WET RISER SYSTEM (SS CP 29: 1998)

a) Breeching Inlet

i) Clear of obstruction and accessible by fire appliances.

ii) Inlets are housed within protective enclosures.

iii) Labelled and numbered accordingly

iv) Blank cap provided.

v) Inlet mounting is secure

b) Landing Valves

i) Properly secured

ii) Labelled and numbered accordingly

iii) Blank caps provided

iv) Strapped and padlocked in closed position

Module 2 11


v) Condition of handwheel satisfactory

c) Test on Transfer Pumps for Breaktank

i) Automatic changeover from PUB to secondarypower supply.

ii) Automatic changeover from duty to stand-by pump.

d) Pump Operation Control/Indication Panel

i) Pump numbering on panel tallies with actualoperation.

iii) Shelter provided (if panel exposed)

e) Test on Pumps

i) Automatic changeover from PUB to secondarypower supply.

(ii) Automatic changeover from duty to stand-by pump.

(iii) All valves to pump kept strapped and padlocked in appropriate positions.

(iv) Pumps are differentiated.

f) Testing of Static Pressure and Flow Rate

i) Static pressure less than 8 bars. This reading will be taken before the flow rate test is conducted.

ii) For 1 stack of the system, 1 or 2 landing valves, normally the topmost ones, will be opened and the total flow rate registered should exceed the minimum flow rates of 27 l/s or 38 l/s for residential or commercial areas respectively.

5.2 DRY RISER SYSTEM

a) Breeching inlets )

b) Landing Valves )Similar checks for WET RISER SYSTEM

c) Breeching Inlets and landing valves are coloured yellow

d) Testing of Hydrostatic Pressure

Module 2 12


i) The system is charged to a pressure of 13.8 bar (200psi) and the pressure should remain constant for a period of 2 hours.

iii) Air release valve functioning.

5.3 SPRINKLER SYSTEM

a) General

i) Sprinkler heads are not obstructed or painted over.

ii) Protective guards are provided for sprinkler heads which may be subjected to accidental damage.

iii) Double layer sprinkler provided for false ceilings exceeding 0.8m in depth.

b) Breeching Inlets )

c) Test for transfer pumps for breaktank ) similar checks as

detailed for WET RISER

SYSTEM

d) Pump Operation Control/Indication Panel)

e) Test on Pumps )

f) Sprinkler Control Valves

i) Labelled to indicate storeys served.

ii) Clear of obstruction.

iii) Location plate with label provided at the access door (if enclosed)

iv) Strapped and padlocked in open position.

g) Water Proving Test

i) Design flow rates achievable. This read off thegapmeter. Readings of running pressure at

the design flow rates would be taken and these should not be less than the design pressures

Module 2 13


h) Activation Test

i) Sprinkler heads would be burnt at the most remotepoints or the next most convenient points.

ii) The water spray pattern acceptable.

iii) Sprinkler water gong activated.

iv) General sounding of the alarm system activated.

v) Alarm signal correctly received at main panel and by SCDF.

i) Flow Switch Test

i) Carry out random activation of flow switches.Check that flow switches are working and

signal received at main fire alarm panel corresponds with the activated zone.

v) Sprinkler water gong activated.

vi) General sounding of the alarm system activated.

j) Drain Test

i) The cut-in pressure of the pump should not be less than 80% of the running pressure.

ii) Drain valves strapped and padlocked in closed position.

k) Sprinkler Bursting Test:

2 or more sprinkler heads at the most remote or next most convenient point is burnt to ensure ;

i) Sprinkler head is operational

ii) Water spray pattern acceptable

Module 2 14


iii) Overlapping of sprinkler discharge.

> Sprinkler water gong activated .

> General sounding of alarm system activated

> Alarm signal correctly received at sub/main panels.

> Alarm signal sent to the Singapore CivilDefence Force (Fire)

5.3 FIRE ALARM SYSTEM (SS CP 10: 1993)

5.4.1 Manual Alarm System

a) General

i) Call points are clear of obstruction.

ii) Fire alarm zoning diagrams provided near panels.

iii) Glass face-plate provided and activation mode displayed.

b) Test on Call Point

i) Alarm bells in operational condition.

ii) General soundings throughout building.

iii) Zone testing correctly indicated on the main and sub-panels.

iv) Fire alarm sounding is distinguishable from any other alarm system.

c) Test on Electrical Supervision (simulation onfault in call point)

i) Zone tested correctly registered on main and sub-panels.

ii) Audible fault alarm and fault indication light on at main and sub-panels.

Module 2 15


5.4.2 AUTOMATIC ALARM SYSTEM (Heat/Smoke Detectors)

a) General

i) Sufficient coverage especially with regard tonew partition works.

ii) Detector points are unobstructed and free from painting.

iii) Double layer protection provided where false ceiling depth exceeds 0.8m

iv) Zoning diagrams provided near panels.

b) Test on Detector Point (activation by heat induction/smoke injection)

i) Similar checks as for “Test on Call Point” of MANUAL ALARM SYSTEM.

c) Test on Electrical Supervision (simulation of fault in detector point)

i) Similar checks as for “Test on ElectricalSupervision” for MANUAL

ALARM SYSTEM.

5.5 HALON SYSTEM

a) General

i) Double layer protection of smoke detectors provided for false ceiling/raised floor depth exceeding 0.8m

ii) Warning signs displayed at entrances/exits.

iii) Instruction signs displayed next to Halon control panel.

iv) Breathing apparatus provided outside Halon Protected Area in good working condition.

Module 2 16


b) Test on Electrical Supervision of Smoke Detectors

i) Similar checks as for “Test on ElectricalSupervision” for MANUAL

ALARM SYSTEM.

c) Simulation Test on Halon System (firing circuit isolation)

i) 1st Mode (activation of any one detector).

ii) Pre-alarm activated.

iii) Beacon light/Evacuation sign on

iv) A/C supply to the protected area cut-off

v) Pre-alarm signal received at panels.

vi) 2nd Mode (activation of any other detector connected to the same halon container)

vii) Siren activated

viii) “Halon Gas Discharged” sign lighted.

ix) Gas discharged indication after 60 sec delay.

x) Signal received at panels and SCDF

5.6 HOSEREELS

a) General

i) Nozzle Condition satisfactory.

ii) Stopcock condition satisfactory.

iii) Clear of obstruction.

iv) Labelling provided for cabinet.

v) Length of hose not more than 30m

Module 2 17


b) Test on Hosereels

i) Flow-rate acceptable.

ii) 10 m horizontal throw achievable with nozzles set to discharge concentrated jet.

iii) No leakage.

c) Test on Hosereel Booster Pumps (if required to be installed)

i) Automatic cut-in/cut-off of pumps when hosereel is functioning/pressure is re-established.

ii) Automatic changeover from duty to stand-by pump if more than 1 pump is installed.

5.7 FIRE EXTINGUISHERS

i) Properly hung on bracket/inside labelled cabinet.

ii) Date serviced is shown and has not expired.

iii) Clear of obstruction.

iv) Bears SISIR label.

v) Type and capacity as approved on plan.

5.8 HYDRANT

i) Clear of obstruction.

ii) Cover for spindle chamber visible.

iii) Blank caps provided to outlets.

iv) Test for sufficient water supply.

v) 100 mm thick yellow band provided for private hydrants.

Full Building Inspection

A full building inspection may be organized and carried out in 3 different stages. Before carrying out the inspection and testing, it is best to inform all tenants of the building and

Module 2 18


also to display notices so as not to cause any inconveniences to the members of the public.

The 3 different stages of inspection are as follows:

A) Stage 1 – System Operation Under Fire Alarm Activation.

B) Stage 2 – System Operation Under generatorsupply. (simulated power failure)

C) Stage 3 – Individual system check.

At the end of the inspection, all systems are to be reset to normal and the fire service shall be informed.

Module 2 19


6.1 STAGE 1 – System Operation under Fire Alarm Activation

Module 2 20

Inform Main Operation Centre (SCDF)

Deployment of Men

ACTIVATE THE FIRE ALARM SYSTEM

Check Check Check Check Check Check Fire Alarm with the for basement pressurization glass slidingMain Panel SCDF homing carpark fans doors

For signal of lifts MV


STAGE 2 – System Operation Under Generator (simulate power failure)

Supersede all timer switches

for building lighting:

Run fire fighting pumps

(sprinkler & wet riser)

Module 2 21

Reset Fire AlarmLifts and Fans

By-Pass LiftsIf necessary

Test Fire Fighting Pumps (Sprinkler &

Wet Riser)

Cut-off PUB electrical Power

supply

Generator supply takes over

Activate the Fire Alarm if necessary

Check the Fire Check Fire Alarm Lifts StaircasesFighting Pumps Main Panel Check for Check exhaust fans

Homing Pressurization fans.Lifts Test Exit signs illuminationFire Lifts Emergency Lightings

Obstructions

Public Entertainment Areas Check for: Activation of fire

Emergency Lightings EXIT signs. alarm. Electromagnetic doors.Glass sliding doors. Car park exhaust fans system. General Alarm sounding. Atrium smoke exhaust fan.


Module 2 22


6.3 STAGE 3 – Individual system check

Carry out following checks and tests:

a) Automatic and manual Fire Alarm – Detectors & callPointsb) Wet Risers Flow & Pressure test

c) Dry Risers pressure testd) Sprinkler Control Valve

e) EBOPS for liftsf) Voice

communicators system g)Hosereelsh) Fire Extinguisher

i) AHU auto cut-offj) Exits and Directional signs

k) Obstruction along means of escapeI) Services ducts

m) Halon Systemn) Fire Hazards

Module 2 23

Restore normal PUB Power Supply

Reset Fire Alarm Lifts & Fans

By-Pass Lifts & Fans


CODE OF PRACTICE

(SINGAPORE STANDARD)

CP 2: 1979 - LIFTS

CP10: 1979 - FIRE ALARM SYSTEMS

CP13: 1980 - MV & AIR-CONDITIONING

CP19: 1981 - EMERGENCY EVACUATION LIGHTING

CP25: 1982 - EMERGENCY VOICE COMMUNICATION

CP29: 1984 - FIRE HYDRANT SYSTEMS AND HOSEREELS

CP232: 1980 - PORTABLE FIRE EXTIGUISHERS

CP332: 1988 - FIRE DOORS

CP55: 1991 - USE AND MAINTENANCE OF PORTABLEFIRE EXTIGUISHERS

CP52: 1990 - AUTOMATIC SPRINKLER SYSTEM

LIFTS

LIFT HOMING

A. FIRE ALARMB. GENERATOR

EBOP FIRE LIFT OPERATION

EMERGENCY LIGHTING/EXIT

LOCATIONS (ESCAPE ROUTES/S/C) 5 SECONDS I SECOND 1 HOUR 0.5 LUX

VOICE COMMINICATION SYSTEM

Module 2 24


Module 2 25


BASEMENT SMOKE EXTRACT SYSTEM

Smoke Extract Glass Blocks (Pavement Lights):

Number and size provided in accordance with plan. Location in accordance with plan. Clear of obstruction, both above and below. Can be easily broken by firemen.

Smoke Extract Shaft:

Works carried out in accordance with plan. Minimum 2 hours fire-rate if extending through storeys above. Fire-rated material used must be of approved type.

Mechanical Smoke Extract System:

Works carried out in accordance with plan. Number of exhaust fans and supply fans in accordance with plan. System is automatically operated upon activated of any fire alarm. System is connected to both PUB power supply and secondary power

supply. Failure of an exhaust fan will cut off the corresponding supply fan

(interlocking) System can only be manually reset.

STAIRCASE PRESSURIZATION SYSTEM

All works and provisions as in accordance with plan. System is automatically activated upon activation of fire alarm.

i) Fan will operate at high speed if single fan is installed.ii) Both fans will operate if double fans are installed.

Fan(s) capable of operating under both PUB power supply and secondary power supply.

The average air flow velocity across doors when any two consecutive storeys’ and the main discharge doors are open simultaneously should not be less than 1 m/s.

The force required to open any door (to the staircase concerned) should not exceed 110 Newton.

Fans(s) can only be stopped manually.

Module 2 26


ATRIUM SMOKE CONTROL SYSTEM

All works and provisions are in accordance with plan. The system electrical components are all connected to both PUB power

supply and secondary power supply. System is automatically activated upon the activation of any fire alarm. All AHUs designed to assist the smoke extract system should operate as

intended when system is activated. External door opening which serve to allow replacement of air supply to

atrium space must open automatically upon activation of fire alarm. Rate of smoke extractions from atrium space should be able to maintain the

corridors and spaces opening into the atrium visibly clear. System must be connected to both PUB power supply and secondary power

supply System can only be manually reset. Manual activation facility is provided and in good condition.

MECHANICAL VENTILATION/SMOKE EXTRACT/SMOKE CONTROL SYSTEMS

AIR HANDLING UNIT (AHU)

Smoke detector must be installed within the return air stream. Activation of smoke detector should automatically trip the AHU. AHU can only be reset manually.

INDEPENDENT MECHANICAL VENTILATION SYSTEM TO PROTECTED LOBBIES/STAIRCASES

All works and provisions as in accordance with plan. System is connected to both PUB power supply and secondary power

supply. Motorised fire dampers (if any) must be closed when fire alarm is

activated.

RISER MAINS

Dry Riser - buildings of height 24 m to 60 mWet Riser - buildings higher than 60 m

Module 2 27


WET RISER SYSTEM

PHYSICAL CHECKS

Breeching Inlet:

Clear of obstruction. Housed in protective enclosure Labelled “WET RISER BREECHING INLET” Differentiated (if more then 1 stack provided) 4-way inlet provided. Location according to plan and is accessible to fire

engine. About 0.76 m above surrounding road/pavement level. Rigidly supported. Blank caps provided. Painted red. Inlet connected to main wet riser tank/break tank.

Riser:

Number of stacks in order. Direction of water flow indicated Pipe size in order (min 150 mm diameter) Earthling provided Not passing through unprotected area/fire rated. Air release valve provided.

Landing Valves:

Labelled “WET RISER OUTLET” Numbering tallies with actual inlet Pressure reducing valve provided Clear of obstruction Blank cap provided 0.76 m to 1 m above finished floor level Strapped and padlocked in closed position Condition of handwheel satisfactory

Water Tank, Break/International Tank (where applicable):

Water level gauge provided Access panel and ladder for maintenance provided Hosereel system tee-off above effective capacity of wet

riser system

Module 2 28


Isolating valve installed at appropriate positions Overflow pipe provided Inflow pipe provided Compartmented Tank capacity in order

Wet Riser Pumps, Transfer Pumps (where applicable):

1 electric duty pump & 1 electric stand-by pump or 1 electric duty pump & 1 diesel stand-by pump.

All valves to pump kept strapped and padlocked in appropriate position

Pumps are differentiated Test facilities provided

Pump Operation control/Indication Panel:

Pump numbering on panel tallies with actual pump Light indicator for power supply to pumps on Pump selector switch on auto position Shelter provided (if panel is exposed)

TEST CRITERIA

Flow rate:

Single stack:i) residential building – 27 l/secii) non-residential building – 38 l/sec

Two or more stacks:i) residential building

(a) 27 l/sec for 1st stack(b) 13 l/sec for each additional stack

ii) non-residential building(a) 38 l/sec for 1st stack(b) 19 l/sec for each additional stack

Running pressure:

3.5 bars to 5 bars

Static pressure:

Cannot exceed 8 bars

Module 2 29


Note:1. Flow-rate must be obtained under single

pump operation only.2. Required flow rate can be obtained with up

to 3 landing valves (from the same stack) opened.

3. Floor selected for the test is dependent on the type of system (pump feed or gravity feed). Top most landing valves under pump/gravity feed are normally selected.

Pumps:

Auto start of duty pump Auto changeover from PUB supply to secondary

power supply. Auto changeover from duty pump to stand-by

pump All pumps can start and stop manually Transfer pumps may be manually tested.

Module 2 30


WET RISER SYSTEM

DRY RISER SYSTEM

PHYSICAL CHECKS

Breeching Inlet:

Location as on plan and accessible to fire engine. 2-way inlet for 100 mm bore rising main, 4-way inlet for 150

mm bore rising main. About 0.76 m above surrounding road/pavement. Housed in protective enclosure. Rigidly supported. Labelled “DRY RISER INLET” Differentiated (if more than 1 stack provided) Clear of obstruction Blank caps provided Painted yellow.

Riser:

Number of stacks in order

Pipe size:

Module 2 31


i) 100 mm diameter if rising main less than 45 m in height and only one landing valve is provided on each floor.

ii) 150 mm diameter if rising main either(a) exceeds 45 m in height or(b) has two landing valves on any floor

Not passing through unprotected area/fire rated Air release valve provided Earthling provided

Landing Valves:

0.76 m to 1 m above finished floor level Condition of handwheel satisfactory Blank caps provided Strapped and padlocked in closed position Labelled “DRY RISER OUTLET” Numbering tallies with actual inlet Clear of obstruction Painted yellow

TEST CRITERIA

Hydrostatic Pressure test:

Charging is done in the presence of Inspecting officer

System is charged to a pressure of 13.8 bars Pressure should remain constant for 2 hours with no leakage Air release valve functioning.

Module 2 32


Module 2 33


SPRINKLER SYSTEM

GENERAL REQUIREMENTS

Layout:

According to plan Sufficient coverage Sprinkler head not obstructed or painted over Double layer provided for false ceiling/raised floor space

exceeding 800 mm in depth. Cut-off sprinkler head provided at toilets, staircase landings,

etc. Protective guard provided for sprinkler heads subjected to

accidental damages (e.g. low level sprinkler heads) Zoning diagrams provided at sub/main panels

Breeching Inlets:

Clear of obstruction Housed in protective enclosure Labelled “SPRINKLER BREECHING INLET” 4-way inlet provided Location according to plan and accessible to fire engine About 0.76 m above surrounding road/pavement Rigidly supported Inlet connected to main sprinkler tank/break tank

Sprinkler Control Valves:

Clear of obstruction Housed in protective enclosure Enclosure properly labelled Labelled to indicate storeys served Control valves strapped and padlocked in operated position Drain test facilities provided Drain valves strapped and padlocked in closed position Design flow rates at design pressures parameters displayed Sprinkler water gong provided.

Main Sprinkler Tank/Break tank (where applicable)

Tank material corresponds to plan (RC, steel) Water level gauge for tank provided Access panel and ladder provided Isolating valves provided at appropriate positions Overflow pipe provided

Module 2 34


Compartmented Effective capacity in order

Main Pumps/Transfer Pumps (where applicable)

1 electric duty pump and 1 electric stand-by pump or 1 electric duty pump and 1 diesel stand-by pump.

All valves to pumps strapped and padlocked in appropriate position

Pumps are differentiated Pressure gauge provided. Drain test facilities provided.

Pump Operation Control/Indication Panel:

Clear from drain off test facilities. All writing in conduit Pump numbering tallies with actual operation Selector switch in auto position Light indicator for power to pump on Shelter/weather proof (if panel is exposed)

TEST CRITERIA

Water Proving Test:

Running pressure should not be less than the design pressure at the design flow rate.

Drain Test:

(Drain off at control valve)

Cut-in pressure should not be less than 80% of running pressure

Sprinkler Pumps/Transfer pumps Test (where applicable)

Auto start of duty pump. Auto changeover from PUB power supply to secondary

power supply Auto switch over from duty pump to stand-by pump

Flow Switch test:

(Activate flow switch by short-circuiting).

Module 2 35


General sounding of alarm activated Signal received at sub/main panels correspond with

activated zone.

Module 2 36


Module 2 37


Module 2 38


FIRE ALARM SYSTEM

FIRE ALARM ANNUNCIATOR PANEL

Location according to plan Fault/alarm indicators labelled Alarm/fault isolation switch provided to each individual zone Rechargeable battery provided Vents provided to battery cabinet “MAINS ON” indicator provided Fire panel lockable Sign “IN CASE OF FIRE, CALL SINGAPORE CIVILE DEFENCE

FORCE BY TELEPHONE 995” if system is not required to be linked to the Singapore Fire Service/ DECAM station.

Zoning diagram provided at sub/main panels.

MANUAL FIRE ALARM SYSTEM

Break Glass Call-Point:

Located at about 1.4 m above floor level Positioned near hosereels, exit or along escape routes. Clear of obstruction Easily visible Glass face-plate provided Activation mode displayed Wiring in conduit.

Test On Call-Point:(Activation by breaking glass)

Alarm bells in operational condition General sounding throughout building Zone tested correctly registered at sub/main panels Fire alarm sounding distinguishable from other alarm system Signal received by Singapore Civil Defence Force (Fire)

Test on Electrical Supervision:(simulation by disconnecting call-point)

Zone tested correctly registered at sub/main panels Audile fault alarm and fault indicator light at sub/main panel

functioning.

Module 2 39


AUTOMATIC FIRE ALARM SYSTEM

Smoke/Heat Detector System:

Layout according to plan. Sufficient coverage Detector points not obstructed and not painted over Protection provided for false ceiling/raised floor space exceeding 800

mm in depth Wiring in conduit Zoning diagram provided near sub/main panels System is electrically supervised System connected to Singapore Civil Defence Force

Activation Test:(Activation by smoke/heat induction)

Alarm bells in operational condition General sounding throughout building Zone tested correctly registered at sub/main panels Fire alarm sounding distinguishable from other alarm system Signal received by Singapore Civil Defence Force (Fire)

Test On Electrical Supervision:(simulation by disconnecting smoke/heat detector)

Zone tested correctly registered at sub/main panels. Audible fault alarm and fault indicator light at sub/main panel

functioning

Module 2 40


Module 2 41


HALON SYSTEM


Instruction sign displayed at Halon Control Panel Warning signs prominently displayed at all entrances and exits Beacon light provided at all entrances Blinking evacuation signs/siren sufficiently provided within halon

protected area Manual activation switch provided at entrance Number/capacity of halon gas cylinders provided according to plan Protection provided for false ceiling space of depth exceeding 800 mm

and raised floor space Halon control panel installed at location as shown on plan Detector layout according to plan Delay timer provided System is electrically supervised Halon control panel linked to sub/main panel. Separate zone and indication at sub/main alarm panel Halon protected zone incorporated in the fire zoning diagram Breathing apparatus provided outside halon protected area No potential leakage through halon protected area All doors installed with self-closer

SIMULATION TEST

Before carrying out test, ensure halon firing circuit is isolated.

1st Mode:(Activation of any one detector)

Pre-alarm activated Beacon lights/evacuation signs on Air-con supply to the protected area cut-off Motorised dampers (if provided) closed Signal correctly received at halon control panel and sub/main

fire alarm panels Signal received by Singapore Civil Defence Force

2nd Mode(activation of any other detector connected to an alternate circuit of the same halon container)

Siren activated “HALON GAS DISCHARGED” signs lighted after delay of

not more than 60 seconds.

Module 2 42


Signal received at halon control panel

TEST ON ELECTRICAL SUPERVISION ON SYSTEM

Simulation of fault by disconnecting any detector or devices connected to the halon firing circuit

Fault signal correctly registered at Halon control panel and sub/main fire alarm panels.

Audible fault alarm and fault indicator functioning.

FIRE HOSEREEL SYSTEM

Module 2 43



Hosereel:

Hosereel installed at locations as indicated on plan Properly mounted Nozzle in good condition Stopclock in good condition Clear of obstruction Labelling provided for cabinet/enclosure All portions of each storey are within 6 m of a nozzle attached

to not more than 30 m of hose Hoses are made of non-kinking reinforced rubber.

Water Supply For Hosereel System

Can be:i) Direct from PUB water mains.ii) Tee-off from sprinkler systemiii) From wet riser water tank but effective capacity of wet riser

system must be preservediv) From domestic water tank but the requisite reserve of water

for hosereel system (1100 l) must be preservedv) From a separate water tank with minimum capacity of 1100

litres.

Hosereel Booster Pumps (if required):

1 electric duty pump and 1 electric stand-by pump or 1 electric duty pump and 1 diesel stand-by pump.

Must be fed from a suction tank or interconnected tanks having a minimum capacity of 1100 litres

Handwheel/isolating valves at pump area are kept strapped and padlocked in appropriate positions

REQUIRED PEFORMANCE

No leakage When 2 hosereels with the least hydraulic head are simultaneously

discharged, each should be capable of providing a 6 m horizontal throw (jet) at a flow-rate of 0.4 l/sec (5 gpm)

Auto start of duty pump when hosereel is functioning. Auto changeover from PUB supply to secondary power supply Auto switch over from duty pump to stand-by pump Both pump can start and stop manually

Module 2 44


Module 2 45


FIRE EXTINGUISHERS


Location according to plan/acceptable location. Type and capacity as approved on plan Hung on bracket/inside labelled cabinet (about 1 m high) Clear of obstruction Date serviced not more than 1 year ago Bears SISIR label Extinguishers is fully charged.

HYDRANT


Rigidly fixed to the ground Clear of obstruction Easily visible Location according to plan Accessible to fire engine Cover for spindle camber visible Spindle depth not more than 1 m Blank caps provided and chained to outlets Water supply to hydrant is sufficient 100 mm thick yellow band provided for private hydrants

Module 2 46


Module 2 47

building inspection & testing

Documents