标准摘要
[中文适用范围]： 本ISO 7240-25规定了用于建筑物内和周围安装的、使用无线电频率（r.f.）传输路径的火灾探测和报警系统组件的要求、测试方法和性能标准。它规定了评估组件符合本ISO 7240-25部分要求的标准。当组件协同工作时且需要系统设计的知识时，本部分还规定了系统的要求。当火灾探测和报警系统使用有线和r.f.传输路径时，ISO 7240的相关部分与本部分同时适用。有关有线传输路径的要求被本部分包含的要求所取代或修改。本部分不限制：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或一个有线传输路径和/或r.f.传输路径内允许使用的r.f.传输路径组件的最大数量；受一个有线传输路径和/或r.f.传输路径丢失影响的组件的最大数量。 [外文原描述]： 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 Requirements relevant to wire transmission paths are superseded or modified by those included in ISO 7240-25:2010.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.
英文名称Fire detection and fire alarm systems — Part 25: Components using radio transmission paths