Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
Standard for Fire Safety in Rapid Transit Systems - Singapore Civil ...
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2.8.4.2 Where a station has an underground l<strong>in</strong>k connected to a nontransit<br />
occupancy, the follow<strong>in</strong>g shall be complied with:<br />
(a) The l<strong>in</strong>k shall not be used as means of escape. The<br />
underground l<strong>in</strong>k shall be considered as part of the<br />
station and shall comply with the relevant fire safety<br />
requirements <strong>in</strong> other sections of this <strong>Standard</strong>.<br />
(b) The station shall be separated from the non-transit<br />
occupancy by fire-rated shutters hav<strong>in</strong>g at least 2 hours<br />
fire resistance. The localised smoke detector shall be<br />
provided on both sides of the fire rated shutter. The firerated<br />
shutters shall be activated by:<br />
- the localised smoke detector/s on either side (i.e. one<br />
side) of these fire shutters,<br />
- the adjacent build<strong>in</strong>g fire alarm zones <strong>in</strong> adjacent<br />
build<strong>in</strong>g.<br />
Upon activation of the localized standalone smoke<br />
detector, an alarm signal shall be sent to the fire alarm<br />
panels of both the station & the adjacent build<strong>in</strong>g.<br />
Where motorised fire-rated shutters are provided, the<br />
fire-rated shutters after clos<strong>in</strong>g by the activation of the<br />
smoke detector(s) shall rema<strong>in</strong> closed and be rendered<br />
<strong>in</strong>operative until the alarm has been reset.<br />
Note: This alarm signal is not used to trigger the<br />
build<strong>in</strong>g fire alarm but is <strong>in</strong>tended to provide the status<br />
that the shutter is activated and is used as a means to<br />
reset the fire alarm panel to reopen the fire shutter after<br />
its activation. There<strong>for</strong>e, the smoke detector located at<br />
the side of the shutter is not part of the build<strong>in</strong>g fire<br />
alarm.<br />
(c) Use of fire shutter not exceed<strong>in</strong>g 6m <strong>in</strong> width is<br />
permitted.<br />
2.8.4.3 Where a station has an elevated l<strong>in</strong>k/overhead-bridge<br />
connected to a non-transit occupancy, the follow<strong>in</strong>g shall be<br />
complied with:<br />
(a) The l<strong>in</strong>k shall not be used as means of escape. The<br />
elevated l<strong>in</strong>k shall be considered as part of the station<br />
and shall comply with the relevant fire safety<br />
requirements <strong>in</strong> other sections of this <strong>Standard</strong>.<br />
Underground<br />
l<strong>in</strong>k<br />
<strong>Fire</strong>-rated<br />
shutters<br />
Elevated l<strong>in</strong>k<br />
<strong>Standard</strong> <strong>for</strong> <strong>Fire</strong> <strong>Safety</strong> <strong>in</strong> <strong>Rapid</strong> <strong>Transit</strong> <strong>Systems</strong> 132