请注意:此版本的所有临时修订版将在您购买时提供。家用电子钟SUL 8261示波器1。1这些要求包括根据国家电气规范NFPA 70.1.2，在普通室内位置使用的输入额定值不超过30瓦250伏的电动家用时钟。这些要求不包括主要用于工业或商业安装的时钟、构成母钟系统一部分的时钟、室外时钟、，时间戳、工作卡记录器、计时器和类似的时间指示和记录设备，也不包括用作便携式电灯或其他照明目的的照明时钟。 1.3包含新特性、特性、组件、材料或系统的产品，或与本标准要求所涵盖的特性、特性、组件、材料或系统不同的产品，对于涉及火灾、触电或人身伤害风险的，应使用适当的附加部件和最终产品要求进行评估，以保持本标准意图最初预期的安全水平。如果产品的特征、特性、组件、材料或系统与本标准的特定要求或规定相冲突，则该产品不符合本标准。应按照制定、修订和实施本标准所采用的方法，提出并采用要求的修订。

Please note: All interim revisions for this edition available at time of your purchase will be included.Household Electric ClocksUL 8261 Scope1.1 These requirements cover electrically operated household clocks having an input rating of not more than 30 watts and 250 volts to be used in ordinary indoor locations in accordance with the National Electrical Code, NFPA 70.1.2 These requirements do not cover clocks intended primarily for industrial or commercial installations, clocks that form part of a master clock system, outdoor clocks, time stamps, job card recorders, timers, and similar time-indicating and -recording appliances, nor do they cover illuminated clocks intended for use as portable electric lamps or for other illuminating purposes.1.3 A product that contains features, characteristics, components, materials, or systems new or different from those covered by the requirements in this standard, and that involves a risk of fire or of electric shock or injury to persons shall be evaluated using appropriate additional component and end-product requirements to maintain the level of safety as originally anticipated by the intent of this standard. A product whose features, characteristics, components, materials, or systems conflict with specific requirements or provisions of this standard does not comply with this standard. Revision of requirements shall be proposed and adopted in conformance with the methods employed for development, revision, and implementation of this standard.