Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...

2.9.4.2 The breeching inlets shall be located within 18m from the fire
engine accessway and be visible from the fire engine
accessway. Breeching inlets shall be appropriately numbered
and labelled as shown in Diagram 2.9.4.2.
2.9.4.3 Two standby hoses shall be provided at each of the following
locations:
(a) Buffer area within 3m from the stair leading to the
trainways (see Diagram 2.9.4.3(a));
(b) Mid tunnel exit staircase; and
(c) Underground or enclosed trainway portal (see Diagram
2.9.4.3(c)).
Standby hoses shall be provided in accordance with
APPENDIX F with the exception of Cl. F2.1.
2.9.4.4 Automatic fire detection systems shall be provided at designated
locations in underground or enclosed trainways where trains are
stabled during non-revenue hours. The guidance for selection of
detectors is described in SS CP 10. The use of line type heat
detectors is permissible.
2.9.5 COMMUNICATION
2.9.5.1 Underground or enclosed trainways shall be provided with
radio communication facilities capable of operating in the
frequency band of 470 - 490 MHz range.
2.9.5.2 Fire resistant cables complying with SS 299 shall be used for
communication system equipment specified in this standard,
except for the leaky co-axial (LCX) cables which are required
to be fire retardant.
2.9.6
EMERGENCY VENTILATION SYSTEM
2.9.6.1 A mechanical emergency ventilation shall be provided in
underground or enclosed trainways exceeding 300m.
2.9.6.2 A mechanical emergency ventilation system is not required for
underground or enclosed trainways not exceeding 60m in
length.
Breeching
inlets
Standby hoses
Communication
Emergency
Ventilation
System
Standard for Fire Safety in Rapid Transit Systems 141