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

(ii) All exit access doors which open into the
corridor shall not hinder movement of occupants.
The corridor’s clear width shall at least remain to
be half of the required clear width as stipulated in
Cl. 2.2.5.4 when such door(s) is swung open.
Exception: Exit access doors of plantrooms in
buffer areas.
(f) Fire door to protected staircase and smoke-stop/firefighting/fire
lift lobby shall be constructed to
incorporate a vision panel. The vision panel shall have
a clear view size of 100mm width by 600mm height.
The vision panel shall have the requisite fire resistance
rating and shall not turn opaque when subject to heat.
The vision panel shall be located with the bottom edge
not higher than 900mm and the top edge lower than
1500mm measured from the finished floor level, and
(g) Revolving doors shall not be used as exit doors for
required exits, and
(h) Where exit doors in a means of escape are used in
pairs,
(i) Approved automatic flush bolts shall be
provided, and
(ii) The unlatching of any leaf shall not require
more than one operation, and
(i) Latched exit doors in a means of escape from an area
having an occupant load of 100 persons or more shall
be equipped with approved panic exit device. The
panic exit device shall operate to open the door when
a pressure is applied on the bar in the direction of
travel and be appropriately marked “Push Bar To
Open” in letters not less than 50mm high, and
(j) Where doors located in the required means of escape
path are operated by power upon the approach of a
person, the doors shall automatically opened and
remained at the fully open position,
(i) Upon activation of the station's fire alarm, or
(ii) In the event of a loss of power to the door.
Vision panel
Panic exit
device
Electrically
operated doors
in means of
escape path
Standard for Fire Safety in Rapid Transit Systems 36