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

(c) Fire doors or shutters held open by electromagnetic or
electro-mechanical devices shall be activated to close by
the localized smoke detector(s) on either (one) side of
the fire doors or shutters, and
Exemption: Fire shutters in non-public areas (i.e.
activated by fusible link only).
(d) Use of fire shutter not exceeding 6m in width shall be
permitted.
(e) Any fire door fitted in an opening which is provided as
a means of escape:
(i) Shall be capable of being opened manually, and
(ii) Shall not be held open by any means other than
by an electromagnetic or electro-mechanical
device which can be activated by the presence of
smoke and/or the fire alarm system, provided that
this shall not apply in the case of fire doors
opening into pressurised exit staircases, and
(iii) Shall open in the direction of exit travel in
accordance with Cl. 2.2.5.13(d).
(f) Fire resisting doors where required to be provided shall
be constructed and installed to comply with
specifications stipulated under SS 332 Specification
for Fire Doors and SS 489 Specification for Fire
Shutters.
(g) Fire shutters shall not be used as security shutters.
(h) The inactive leaf of double-leaf doors for
plant/equipment/machine rooms and for
lobby/corridor leading to these rooms, where the
inactive leaf is only for use as equipment access, need
not be fitted with a self-closing device, but must be
bolted in place and fitted with a sign “Keep door
bolted”.
Standard for Fire Safety in Rapid Transit Systems 67