PART A : PROVISION OF FIREFIGHTING SYSTEMS

Rising Mains

1

Dry rising mains shall be installed progressively during the course of construction as per approved plan and made operational for all storeys except the uppermost 3 storeys, for building exceeding 8 storeys or habitable height of 24m.

2

Wet rising mains shall be installed progressively during the course of construction as per approved plan and made operational for all storeys except the uppermost 3 storeys, for building exceeding 18 storeys or habitable height of 60m. The following shall be provided:

(a) break tank with minimum water capacity of 11.5m³; and

(b) fire pumps which are operational and supplied with emergency power supply.

3

Provision of breeching inlets (2-way/4-way)* provided as per approved plan. The following shall be complied with:

(a) breeching inlets made operational and housed in protective enclosure; and

(b) labelled and numbered accordingly.

4

Riser stacks are labelled and numbered and:

(a) earthing is provided; and

(b) air relief valve is provided.

5

Landing valves provided with blank caps and are strapped and padlocked in closed position.

Lift

6

Lift/passenger hoist ready for firefighters’ use shall be provided for building exceeding 8 storeys or habitable height of 24m.

Generator

7

Generator set or adequate PUB power supply shall be

provided for emergency lighting and firefighting purpose.

Fire Engine Accessway

8

Provision of adequate fire engine accessway (where practicable) for firefighting purpose.

Fire Extinguisher

9

At least one fire extinguisher of 13A rating shall be provided for every 500m² or less on each floor. Where provision of fire engine accessway is not practicable, the quantity of fire extinguishers shall be doubled on each floor.

PART B : TESTING OF RISING MAINS

Breeching inlet

1

Inlet housed in protective enclosure.

2

Rigidly support

3

Labelled “dry/wet riser inlet” and numbered accordingly

4

Clear of obstruction

Riser

5

Air relief valve provided

6

Labelled & numbered accordingly

7

Earthing provided

Landing Valve

8

Blank cap provided

9

Strapped and padlock in closed position

10

Clear of obstruction

Pressure/Flow

11

Rising mains pipping

Hydrostatically tested at 1380 kPa (13.8 bar) or 1.5 times the design pressure, whichever is greater, for 2 hours.

12

Wet rising mains

(a) Flow rate at the topmost fully-opened landing valve (under pump/gravity feed) is at least 27 L/s; and

(b) Running pressure is between 2 bars and 5.5 bars at the landing valve