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Fire detection and alarm systems for buildings – Part 3: Specification for automatic release mechanisms for certain fire protection equipment

Executive summary

Specification for the construction, electrical and performance requirements and methods of test for automatic release mechanisms for fire protection equipment.

Abstract

This British Standard, a part of the BS 5839 series, specifies the construction, electrical and performance requirements and methods of test for automatic release mechanisms for certain fire protection equipment. The automatic release mechanisms are intended to hold open (or closed) fire protection equipment such as fire doors, fire shutters, fire dampers, etc. against the force of a door-closing (or door-opening) mechanism, and to release the fire door, fire shutter, fire damper, etc. on manual operation or on receipt of a signal from a fire detection system, one or more smoke or fire detectors or from a central point in a building.

This standard provides additional requirements marking and data. Testing requirements covered include damp heat (steady state) and insulation resistance, temperate conditions, cold, SO2 corrosion, durability, impact, vibration and pressure test for fluidic pressure controlled mechanisms.

History and related standards

This British Standard includes the following cross references:

BS 302, BS 2011, BS 3955, BS 4575, BS 5345, BS 5490, BS 5750, BS 5839,

BS 6459, BS EN 1155.

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