ISO 7240-22:2007 火灾探测与报警系统 第22部分：管道用烟雾探测设备

标准编号：ISO 7240-22:2007

中文名称：火灾探测与报警系统 第22部分：管道用烟雾探测设备

英文名称：Fire detection and alarm systems — Part 22: Smoke-detection equipment for ducts

发布日期：2007-05

标准范围

ISO 7240-22:2007规定了建筑物中安装的火灾探测和火灾报警系统用管道（s.d.e.d.）烟雾探测设备的要求、试验方法和性能标准。s.d.e.d.对管道中的空气进行采样，并检测样本中的烟雾。一种常见的操作方法是使用管道中气流产生的压差。s.d.e.d.可以使用符合ISO 7240-7的烟雾探测器或符合ISO 7240-22:2007规定的测试的其他探测器。s.d.e.d.的一个常见应用是探测可见烟雾，使用散射光或透射光的探测器更适合探测可见烟雾。然而，ISO 7240-22:2007中也包含了使用电离的探测器的要求，用于需要检测不太可见的火灾气溶胶的应用。对于其他类型的烟雾探测器或工作原理不同的烟雾探测器的测试，ISO 7240-22:2007可作为指南。不包括针对特定风险开发的具有特殊特性的烟雾探测器。

ISO 7240-22:2007 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.The s.d.e.d. samples the air from a duct and detects smoke in the sample. 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 ISO 7240-22:2007.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 ISO 7240-22:2007 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, ISO 7240-22:2007 can be used for guidance. Smoke detectors with special characteristics, developed for specific risks, are not covered.

标准预览图