Draft Document - Household and similar electrical appliances - Safety - Part 2-51: Particular requirements for stationary circulation pumps for heating and service water installations (IEC 61/4100/CDV:2010); German version EN 60335-2-51:2003/FprA2:2010
文件草案-家用和类似用途电器-安全-第2-51部分:供暖和厂用水装置用固定循环泵的特殊要求(IEC 61/4100/CDV:2010);德文版EN 60335-2-51:2003/FprA2:2010