If the fire alarm manual call points are located on the landings of an enclosed stairway, the manual call point on each level, other than a final exit level from the stairway, should be incorporated within the
fire detection zone that serves the adjacent accommodation on that level. A fire alarm manual call point located within the stairwell at a final exit to open air may be incorporated within the fire detection zone serving the stairwell.
If the total floor area of the building is greater than 300 m2, each fire detection zone should be restricted to a single storey.
If the total floor area of the building is less than 300 m2 a zone may cover more than a single storey.
When designing a fire alarm, voids above or below the floor area of a room, these may be included within the same zone of the room, provided that the voids and the room constitute a single fire compartment.
No comments:
Post a Comment