IEC 62282-3-400:2016适用于小型固定式燃料电池电力系统，作为既提供电力又提供有用热量的加热设备，有或没有提供峰值负荷功能的辅助热发生器。本标准适用于与客户（最终用户）电气系统永久连接的燃料电池电力系统。与电源直接连接（并联运行）也在本标准的范围内。本标准仅限于燃气和液体燃料电池CHP设备，其热量输入基于低于或等于70 kW的低热值。本标准规定了这些设备的施工、安全、安装、适用性、合理使用能源、标记和性能测量的要求。 本标准还提供了特定于区域和国家的要求，以促进本IEC标准在全球的应用。

IEC 62282-3-400:2016 applies to small stationary fuel cell power systems serving as a heating appliance providing both electric power and useful heat with or without a supplementary heat generator providing peak load function. This standard applies to fuel cell power systems that are intended to be permanently connected to the electrical system of the customer (end user). Direct connection to the mains (parallel operation) is also within the scope of this standard. This standard is limited to gas and liquid fuelled fuel cell CHP appliances that have a heat input based on lower heating value of less than or equal to 70 kW. This standard specifies the requirements for construction, safety, installation, fitness for purpose, rational use of energy, marking, and performance measurement of these appliances. This standard also provides regional and country specific requirements to facilitate the worldwide application of this IEC standard.