火灾探测和报警系统.第12部分:使用透射光束的线型烟雾探测器

[中文适用范围]： 本文件规定了线型烟雾探测器的要求、试验方法和性能标准，用于建筑物内火灾探测系统中。这些探测器至少包括发射器和接收器，并可能包含反射器，通过光束的衰减和/或衰减变化来检测烟雾。本文件不适用于：——设计用于在相对部件之间距离小于1米以下运行的线型烟雾探测器；——光学路径长度可通过积分机械连接定义或调整的线型烟雾探测器；——具有特殊特性且无法通过本文件中的测试方法评估的线型烟雾探测器。注意，术语“光学”用于描述发射器产生的电磁频谱的一部分，接收器对此有反应，这不限于可见波长。 [外文原描述]： This document specifies requirements, test methods and performance criteria for line-type smoke detectors for use in fire detection systems installed in buildings. The detectors consist of at least a transmitter and a receiver and can include reflector(s) for the detection of smoke by the attenuation and/or changes in attenuation of an optical beam. This document is not applicable to: — line-type smoke detectors designed to operate with separations between opposed components of less than 1 m; — line-type smoke detectors whose optical path length is defined or adjusted by an integral mechanical connection; — line-type smoke detectors with special characteristics, which cannot be assessed by the test methods in this document. NOTE The term “optical” is used to describe that part of the electromagnetic spectrum produced by the transmitter to which the receiver is responsive; this is not restricted to visible wavelengths.