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

(b) Where the lift shaft is not a protected shaft, the lift
hoistway shall be adequately ventilated at the top of
the shaft by means of one or more permanent openings
having a total unobstructed area of not less than 0.1m 2
for each lift in the shaft.
2.6.3 ENGINEERED SMOKE CONTROL SYSTEM
2.6.3.1 Engineered smoke control system shall be provided in
basement commercial space on commercial floor and shall
comply with SS 553 Code of Practice for Mechanical
ventilation and air-conditioning in buildings.
2.6.3.2 The engineered smoke control system need not be a dedicated
system.
2.6.3.3
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.
2.6.4 SMOKE PURGING SYSTEM
2.6.4.1 Underground Station Public And Ancillary Areas
(a) Smoke purging system shall be provided in the
following areas:-
(i) Station public areas
(ii) Corridors of ancillary areas in basement.
Except the following:-
(iii) Corridors serving only ticketing machine
rooms, staff offices, staff toilets, cleaner's stores and
not more than one plantroom.
(iv) Corridor at buffer areas.
(b) For underground station with enclosed public areas
above ground, the smoke purging system shall be
extended to these public areas.
Station public
areas and
corridors
Standard for Fire Safety in Rapid Transit Systems 113