ISO 7240-22-2007 火灾探测和报警系统.第22部分_管道用烟雾检测器设备.pdf

标准号：ISO 7240-22-2007
实施状态：作废
中文名称：火灾探测和报警系统.第22部分:管道用烟雾检测器设备
英文名称：Fire detection and alarm systems - Part 22: Smoke-detection equipment for ducts
发布日期：2007-05
被替代标准：ISO 7240-22-2017
代替标准：ISO/FDIS 7240-22-2007
起草单位：ISO/TC 21
标准简介：This part of ISO 7240 specifies requirements, test methods and performance criteria for smoke-detection
equipment for ducts (s.d.e.d.) for use in fire-detection and fire alarm systems installed in buildings; see
ISO 7240-1.
The s.d.e.d. samples the air from a duct and detects smoke in the sample.
NOTE 1 A common method of operation is to use differential pressure arising from airflow in the duct.
The s.d.e.d. can use smoke detectors complying with ISO 7240-7 or other detectors complying with tests
specified in this part of ISO 7240.
A common application for s.d.e.d. is to detect visible smoke, for which detectors using scattered light or
transmitted light can be more suitable. However, requirements for detectors using ionization are also included
in this part of ISO 7240 for use in applications where detection of less visible fire aerosols is desired.
For the testing of other types of smoke detectors or smoke detectors working on different principles, this part
of ISO 7240 can be used for guidance. Smoke detectors with special characteristics, developed for specific
risks, are not covered.
NOTE 2 Certain types of detectors contain radioactive materials. The national requirements for radiation protection
differ from country to country and are not specified in this part of ISO 7240.
文件格式：PDF
文件大小：546.54KB
文件页数：48
（以上信息更新时间为：2019-11-22）



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