标准编号：ISO 7240-12:2006
中文名称：火灾探测和报警系统 第12部分：采用传输光束的线型烟尘探测器
英文名称：Fire detection and alarm systems — Part 12: Line type smoke detectors using a transmitted optical beam
发布日期：2006-02
标准范围
This part of ISO 7240 specifies requirements, test methods and performance criteria for line-type smokedetectors for use in fire detection systems installed in buildings. The detectors consist of at least a transmitterand a receiver and can include reflector(s), for the detection of smoke by the attenuation and/or changes inattenuation of an optical beam.This part of ISO 7240 does not cover? line-type smoke detectors designed to operate with separations between opposed components of lessthan 1 m;? line-type smoke detectors whose optical path length is defined or adjusted by an integral mechanicalconnection;? line-type smoke detectors with special characteristics, which cannot be assessed by the test methods inthis part of ISO 7240.NOTE The term “optical” is used to describe that part of the electromagnetic spectrum produced by the transmitter towhich the receiver is responsive; this is not restricted to visible wavelengths.
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