Fire detection and fire alarm systems — Part 25: Components using radio transmission paths
火灾探测和火灾报警系统SPART 25:使用无线电传输路径的部件
发布日期:
2010-05-11
ISO 7240-25:2010规定了火灾探测和报警系统中使用的部件的要求、试验方法和性能标准,这些部件安装在建筑物内部和周围,使用射频(r.f.)传输路径。它规定了评估组件是否符合ISO 7240-25:2010要求的要求。
如果组件一起工作,这需要系统设计知识,ISO 7240-25:2010还规定了系统要求。
当火灾探测和报警系统使用有线和r。
f、 传输路径,ISO 7240的相关部分与ISO 7240-25:2010一起适用。ISO 7240-25:2010取代或修改了与电线传输路径相关的要求。
ISO 7240-25:2010不限制无线电频谱的预期用途,例如设备的频率、功率输出;火灾探测和报警系统内使用射频传输路径或单线传输路径和/或射频传输路径的组件的最大允许数量;或受单线传输路径损失和/或r影响的组件的允许最大数量。
f、 传输路径。
ISO 7240-25:2010 specifies requirements, test methods and performance criteria for components used in fire detection and alarm systems, installed in and around buildings, which use radio-frequency (r.f.) transmission paths. It specifies requirements for the assessment of conformance of the components to the requirements of ISO 7240-25:2010.
Where components work together and this requires knowledge of the system design, ISO 7240-25:2010 also specifies requirements for the system.
When the fire detection and alarm system uses wired and r.f. transmission paths, the relevant parts of ISO 7240 apply together with ISO 7240-25:2010. Requirements relevant to wire transmission paths are superseded or modified by those included in ISO 7240-25:2010.
ISO 7240-25:2010 does not restrict the intended use of radio spectrum, e.g. frequency, power output of devices; the allowed maximum number of the components using r.f. transmission paths within the fire detection and alarm system or one wire transmission path and/or r.f. transmission path; or the allowed maximum number of the components affected by loss of one wire transmission path and/or r.f. transmission path.