请注意:此版本的所有临时修订版将在您购买时提供。1.范围。1.1根据国家电气规范NFPA 70.1.2，这些要求包括额定电压为300伏或更低的电动可视信号设备，适用于室内和/或室外场所，这些要求包括在普通场所使用的可视信号设备。根据国家电气规范NFPA 70的规定，在危险场所使用的可视信号设备应根据其是否符合这些要求进行评估，并进一步进行适当的检查和测试，以确定其使用的可接受性。1.3这些要求涵盖了一般信号使用的视觉信号设备，这些设备适用于非- 紧急使用。这些视觉信号不包含任何感官功能，旨在连接到其他设备或由其他设备控制。1.4当设备同时产生视觉信号和声音信号时，产品还应符合通用信号用声音信号设备标准UL 464A或商业和专业用扬声器标准UL 1480A（视情况而定）。1.5这些要求不包括国家火灾报警规范NFPA 72.1.6中定义的用于火灾报警的视觉信号装置。这些要求不包括用于娱乐或房间照明的灯具或频闪灯组件。1.7这些要求不包括应急照明或出口照明视觉信号。 1.8这些要求不包括识别火灾或紧急信号系统功能或与部分相关信息的报警器。报警器包含在火灾报警系统控制单元和附件标准UL 864中。

Please note: All interim revisions for this edition available at time of your purchase will be included.1 Scope.1.1 These requirements cover electrically-operated visual signaling appliances, rated 300 volts or less, and intended for indoor locations, outdoor locations, or both, in accordance with the National Electrical Code, NFPA 70.1.2 These requirements cover visual signaling appliances for use in ordinary locations. Visual signaling appliances for use in hazardous locations, as defined in the National Electrical Code, NFPA 70, are evaluated on the basis of their compliance with these requirements and further appropriate examination and tests to determine their acceptability for such use.1.3 These requirements cover general signal use visual signaling appliances that are intended for non-emergency use. These visual signals do not contain any sensory functions and are intended to be connected to or controlled by other equipment.1.4 When the appliance produces both a visual signal and an audible signal, the product shall also comply with the Standard for Audible Signal Appliances for General Signaling Use, UL 464A, or the Standard for Speakers for Commercial and Professional Use, UL 1480A, as appropriate.1.5 These requirements do not cover visual signaling appliances intended for fire alarm use as defined in the National Fire Alarm Code, NFPA 72.1.6 These requirements do not cover lamp or strobe-light assemblies intended for entertainment or room lighting.1.7 These requirements do not cover emergency lighting or exit lighting visual signals.1.8 These requirements do not cover annunciators that identify functions of a fire or emergency signaling system or relate information concerning portions thereof. Annunciators are covered under the Standard for Control Units and Accessories for Fire Alarm Systems, UL 864.