请注意:此版本的所有临时修订版将在您购买时提供。这些要求包括根据自动火灾探测器标准NFPA 72E，拟安装在普通室内和室外位置的消防信号系统用热探测器。这些要求涵盖的热探测器采用常开触点或常闭触点，提供电子信号，或由热敏电缆组成。这些要求不包括日志报警或单元报警装置的热探测器。

Please note: All interim revisions for this edition available at time of your purchase will be included.These requirements cover heat detectors for fire protective signaling systems intended to be installed in ordinary indoor and outdoor locations in accordance with the Standard for Automatic Fire Detectors, NFPA 72E.Heat detectors covered by these requirements employ either normally open contacts or normally closed contacts, provide an electronic signal, or consist of a heat-sensitive cable. The requirements do not cover heat detectors for journal-alarm or unit-alarm devices.