M 346-2004 责成欧洲标准机构.欧洲电工标准化委员会对《低电压指令》中的电气设备的非功能性表面的温度进行标准化的委托书[参考:EU 73/23/EEC]
Standardisation mandate addressed to the European Standards body CENELEC with respect to surface temperatures of accessible non-functional surfaces of electrical equipment included in the scope of the Low Voltage Directive