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BS 5588-7:1997

Smoke clearance system

Smoke clearance system Enclosure: Fire-resisting 60 min (insulating and integrity) and smoke retarding

AFD L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

No fire load

L1AFD/A

L1AFD/A

Make-up air

Make-up air

Smoke exhaust system 1)

Smoke exhaust system 1)

AFD L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

L1AFD/A

Controlled fire load

L1AFD/A

Make-up air

1)

Enclosure: Fire-resisting 60 min (insulating and integrity) and smoke retarding

L1AFD/A

Make-up air

L1AFD/A denotes automatic fire detection and alarm

NOTE Occupants of category D premises are a particularly vulnerable section of society and in certain circumstances evacuation may cause them harm, or delayed recovery, or aggravate their medical condition. To ensure that smoke does not enter spaces adjoining the atrium, a smoke exhaust system is required to maintain a stable smoke layer 1 m above the uppermost opening into the atrium.

Exemplar 23 — Occupancy category D: occupants requiring medical or nursing care

Š BSI 8 December 2004

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Bs 5588 71997 fire precautions in the design, construction a