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BS 5588-7:1997

Smoke control system designed to ensure that untenable conditions are not created to means of escape in atrium (see 24.2) Means of escape in two directions to independent, protected escape routes

Accommodation with 30 min fire-resisting (integrity and insulation) construction

L1AFD/VA L1AFD/VA L1AFD/VA L1AFD/VA

L1AFD/VA

Unlimited height

L1AFD/VA

L1AFD/VA

Unenclosed balconies

L1AFD/VA L1AFD/VA L1AFD/VA

AFD

L1AFD/VA L1AFD/VA

Atrium base: Controlled fire load

L1AFD/VA

Make-up air

L1AFD/VA

Make-up air

L1AFD/VA denotes automatic fire detection to BS 5839, L1 standard and voice alarm denotes automatic sprinkler system

Storey exit Unenclosed balcony Storey exit

Atrium

Protected corridor

18 m maximum travel distance from bedroom door to nearest protected corridor or stairway Bedroom

denotes escape route denotes alternative route Exemplar 21 — Occupancy category C3 (occupants who are likely to be asleep): short term occupancy, unenclosed balcony escape route

Š BSI 8 December 2004

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Bs 5588 71997 fire precautions in the design, construction a  
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