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Clause 9.1 General Clause 9.2 Integration And Interface For Stations Clause 9.3 Underground or Enclosed Trainway Clause 9.4 Aboveground Trainway Clause 9.5 Depot Clause 9.6 Operation Control Centre Clause 9.7 Rapid Transit System Facility Buildings Clause 9.8 Electrical Transformer Room In Underground Structures

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Clause 9.5 Depot

CPFPRTS 2022

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9.5.1 General

Requirements stipulated in the previous sections of this Code for transit stations and trainways are not applicable to the depot. The depot shall comply fully with the requirements of the Code of Practice for Fire Precautions in Buildings except as herein modified.

9.5.2 Hose reel and areas with traction power

Areas with traction power shall not be covered/ protected by hose reels. A 6m wide zone on plan, enveloping the unenclosed area with traction power need not be fully covered/ protected by hose reels. See Diagram 9.5.2.

Diagram 9.5.2: Hose Reels and Areas with Traction Power

9.5.3 Stores containing materials that react explosively with water

Hose reels and sprinklers shall not be provided in stores (e.g., thermit and volatile stores) containing materials that react explosively with water.

9.5.4 Purpose group

The depot shall be considered as a factory (Purpose Group VI).

9.5.5 Fire separation from non-transit occupancies

Elements of structure forming the fire separation between track areas/ sidings of the depot and non-transit occupancies shall have at least 4 hrs fire resistance. See Diagram 9.5.5.

Diagram 9.5.5: Element of Structure Forming Fire Separation Between Depot and Non-Transit Occupancies Shall Have 4-hrs Fire Resistance Rating

9.5.6 Fire resistance of elements of structure

The fire resistance of elements of structure around underground track areas/ sidings shall be at least 4-hrs.

9.5.7 Occupant loads

The occupant loads for the track areas and sidings shall be determined based on the expected number of people occupying the areas.

9.5.8 Travel distances

The maximum travel distance for the track areas, sidings and workshop areas for the trains shall be as shown in Table 9.5.8.

TABLE 9.5.8. - MAXIMUM TRAVEL DISTANCE FOR TRACK, SIDING & WORKSHOP AREAS
TypeSprinkler-protectedNon-sprinkler-protected
One-way30m15m
Two-way120m90m
Dead-end15m15m

Note:

The maximum two-way travel distance for the siding shall be at most 150m if exits are provided at both ends of the siding and that the siding is sprinkler-protected.

 

9.5.9 Fire safety report

Fire safety report shall be prepared in accordance with the relevant chapter of the Fire Code and submitted.

9.5.10 Detectors for engineered smoke control systems

In lieu of smoke detectors, linear heat detectors of the optic fibre type can be used to activate the engineered smoke control systems in non-public areas.

9.5.11 Automatic fire alarm system

The automatic fire alarm system shall be connected to the OCC.

9.5.12 Fire Command Centre

There shall be one FCC to be provided at the depot development, which can consist of more than one building subject to the following:

a. It shall be located at the main building nearest to the front entrance of the depot development, which is part of the ingress of the fire engine accessways/ fire engine access roads;

b. In the case of multiple railway operators within the same depot development, the fire emergency operation shall be managed by a single lead operator; and

c. All the fire alarm panels, control, and monitoring devices of other fire safety systems e.g. engineered smoke control system, emergency voice communication system, and lift supervisory (if any) from respective buildings shall be housed inside this single FCC.

9.5.13 Two-way emergency voice communication system

a. Provision

For depot with basement storey(s), two-way emergency voice communication system complying with SS 546 shall be provided to the basement storey(s), except for requirements on locations of remote handsets as modified herein.

b. Locations of handsets

The master handset of the two-way emergency voice communication system shall be located near the main alarm panel. Remote handsets shall be provided at the following locations if present at the basement storey(s):

(1) Fire lift lobbies

(2) Fire pump room

(3) Rooms housing smoke control equipment

(4) Lift motor rooms

(5) Fire lifts

9.5.14 Radio communication

Basement storey(s) of depot shall be provided with radio communication facilities capable of operating in the frequency band as allocated and approved by authority having jurisdiction.

9.5.15 Design fire size and perimeter

Where required to be provided with engineered smoke control system, the design train fire size and perimeter shall be substantiated, subject to the approval of the SCDF.