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Section 5

BS 5588-7:1997

Is phased evacuation being considered ? No

Yes

All stairs to be sized for simultaneous evacuation

Provide L2 AFD within atrium and associated floor areas and alarm throughout building

No

Provide L2 AFD within atrium and associated floor areas and voice alarm throughout building

Provide smoke clearance system within atrium

Provide smoke clearance system within atrium

Is atrium 30 m or less in height?

Is atrium 30 m or less in height?

Yes

Yes

Controlled fire load within atrium base

Provide sprinkler system in associated floor area(s) No exemplar given

No

Controlled fire load within atrium base

Fire load in the atrium base may be comparable to the use and contents with that adjoining the atrium No exemplar given

Fire load in the atrium base may be comparable to the use and contents with that adjoining the atrium

Provide sprinkler system in associated floor area(s) See exemplar 8

See exemplar 7

Figure 3c — Occupancy category A: occupants who are awake and, predominantly, are familiar with the building — Atrium enclosed with smoke retarding and fire-resisting construction

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© BSI 8 December 2004

Bs 5588 71997 fire precautions in the design, construction a  
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