请注意:此版本的所有临时修订版将在您购买时提供。UL 1012中的要求包括便携式、固定式和固定式电源装置，其输入额定值为600伏或以下，直流和交流，至少有一个输出未标记为2级，并根据国家电气规范ANSI/NFPA 70，拟用于普通场所。这些要求包括通用电源和用于某些家用电器、学校实验室、阴极保护设备的电源； 电源电池充电器组合；包括逆变器在内的工业设备分为两类——额定值小于等于10千伏安的设备和额定值大于10千伏安的设备。所有输出均被确定为2级的动力装置均包含在2级动力装置标准UL 1310中。这些要求不包括以下类型的电池充电器:用于为发动机起动电池充电的电池充电器标准UL 1236中规定的电机起动电池充电的电池充电器；根据UL 1564《工业电池充电器标准》的规定，为材料搬运卡车、拖拉机、人员运输车和类似动力设备供电的工业电池充电的电池充电器； 《陆地车辆和船舶用功率转换器/逆变器和功率转换器/逆变器系统标准》（UL 458）涵盖的用于休闲车辆和船只的转换器或逆变器的充电器或充电功能；以及充电控制器或充电功能并入独立电力系统中使用的设备，如《分布式能源用逆变器、转换器、控制器和互连系统设备标准》（UL 1741）所述。不完全在上述标准范围内的电池充电器，应按照本标准的要求进行调查，并辅以上述标准中最适用的标准的适用要求。 这些要求不包括消防或防盗信号系统的电源、静电空气净化设备、休闲车、放电或霓虹管、商业或工业实验室的测试设备；或使用电源的设备或系统。这些要求涵盖集中交流或直流电源系统的电源，包括构成这些系统一部分的直流电源、整流器等。根据该最终产品的标准，对拟与上述以外的特定类型产品一起使用的电源进行调查。 这些要求不包括电源对所连接设备或系统的影响。电源系统的主要功能是在输入电源故障的情况下保持交流电源的连续性，该系统包含在不间断电源系统标准UL 1778中。

Please note: All interim revisions for this edition available at time of your purchase will be included.The requirements in UL 1012 cover portable, stationary, and fixed power units having an input rating of 600 volts or less, direct- and alternating- current, with at least one output not marked Class 2, and that are intended to be employed in ordinary locations in accordance with the National Electrical Code, ANSI/NFPA 70.These requirements cover general purpose power supplies and power supplies for uses such as to supply some household appliances, school laboratories, cathodic protection equipment; power supply-battery charger combinations; and industrial equipment, including inverters, divided into two classes - those rated 10 kilovolt-amperes or less and those rated more than 10 kilovolt-amperes.Power units with all outputs identified as Class 2 are covered under the Standard for Class 2 Power Units, UL 1310.These requirements do not cover the following types of battery chargers:Battery chargers intended to charge motor-starting batteries as covered by Standard for Battery Chargers for Charging Engine-Starter Batteries, UL 1236;Battery chargers for charging industrial batteries which power material handling trucks, tractors, personnel carriers, and similar motive equipment, as covered by the Standard for Industrial Battery Chargers, UL 1564;Chargers or charging functions incorporated into converter or inverters for use in recreational vehicles and boats, as covered by the Standard for Power Converters/Inverters and Power Converter/Inverter Systems for Land Vehicles and Marine Crafts, UL 458; andCharge controllers or charging functions incorporated into equipment for use in independent power systems, as covered by the Standard for Inverters, Converters, Controllers and Interconnection System Equipment for Use With Distributed Energy Resources, UL 1741.A battery charger not wholly within the scope of one of the standards specified above shall be investigated to the requirements of this Standard supplemented by the applicable requirements of whichever of the standards above is most applicable.These requirements do not cover a power supply for a fire-protective or burglary-protective signaling system, electrostatic-air cleaning equipment, recreational vehicles, electric discharge or neon tubing, test equipment for commercial or industrial laboratories; or an appliance or system in which the power supply is used.These requirements cover power supplies for centralized ac or dc power systems, including dc power supplies, rectifiers, and the like, that form part of these systems.A power supply that is intended for use with a specific type of product other than as referenced in above is investigated under the standard for that end product.These requirements do not cover the effect that a power supply may have on an equipment or a system to which it is connected.A power system, the primary function of which is maintaining continuity of an alternating power source in case of input power failure, is covered under the Standard for Uninterruptible Power Systems, UL 1778.