標準號：BS 5839-3-1988
中文標準名稱：建筑物火警監測及報警系統.第3部分:防火設備用自動釋放裝置規范
英文標準名稱：Fire detection and alarm systems for buildings - Part 3.Specification for automatic release mechanisms for certain fire protection equipment
標準類型：C81
發布日期：1988/4/29 12:00:00
實施日期：1988/4/29 12:00:00
中國標準分類號：C81
國際標準分類號：13.220.20;13.320
適用范圍：This Part of BS 5839 specifies construction, electrical andperformance requirements and methods of test forautomatic release mechanisms for certain fire protectionequipment. The automatic release mechanisms are intendedto hold open (or closed) fire protection equipment such asfire doors, fire shutters, fire dampers, etc. against the forceof a door-closing (or door-opening) mechanism, and torelease the fire door, fire shutter, fire damper, etc. onmanual operation or on receipt of a signal from a firedetection system, one or more smoke or fire detectors orfrom a central point in a building.This standard does not cover the following: (a) devices for the release of automatic extinguishing systems or fixed fire extinguishers; (b) fusible links and thermal trips used for releasing fire doors, fire shutters, fire dampers, etc. which are not part of a fire detection and alarm system and which therefore do not affect the design and construction of any fire detection and alarm system that may be installed; (c) closing (or opening) mechanisms, e.g. door closers; NOTE 1. Door closers are specified in BS 6459. (d) release mechanisms incorporated into closing or opening mechanisms; (e) release mechanisms which utilize friction between the mechanism and a fixed surface to prevent the door closing, e.g. plunger type devices; (f) fire detection and alarm systems and smoke or fire detectors nor their disposition; (g) precautions that may be necessary if the release of fire protection equipment is either hazardous or, in the absence of any fire, costly or inconvenient; (h) apparatus that may send a signal to release.NOTE 2. In this standard, to avoid repetition, the term 'open'includes the term 'closed' and conversely, and the term 'door'includes fire doors, fire shutters, fire dampers and other fireprotection equipment that are required to be held against the forceof a door-closing (or door-opening) device and released whennecessary.NOTE 3. The titles of the publications referred to in this Part ofBS 5839 are listed on the inside back cover.