BS 7346-5:2005
烟和热控制系统部件.利用时间相关设计点火法的排烟和排热通风系统的功能推荐方法和计算方法.实施规程

Components for smoke and heat control systems - Functional recommendations and calculation methods for smoke and heat exhaust ventilation systems, employing time-dependent design fires - Code of practice

标准号

BS 7346-5:2005

发布

2005年

发布单位

英国标准学会

当前最新

BS 7346-5:2005

 

 

被代替标准

03/117591 DC-2003

适用范围

This British Standard gives functional recommendations and guidance on the calculation method for smoke and heat exhaust ventilation systems (SHEVS) for time-dependent design fires. A variety of building types is addressed. For a pre-determined critical time, this British Standard can be used to determine required performance of a SHEVS needed to avoid the onset of a significant danger. Or, for a pre-determined SHEVS, this British Standard can be used to determine the time available between ignition and onset of significant danger. This British Standard uses accepted and authoritative methods to define some design parameters, e.g. the time needed for safe evacuation or attendance time of the fire-fighting services. This information can be sought from other sources when generating the overall fire-safety concept for a specific building project. Many of the detailed calculation procedures, and most of the danger criteria defining the boundary between success and failure, are the same for time-dependent design fires as for steady-state design fires, and it is essential that this British Standard be used in conjunction with BS 7346-4.

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