IEC 60449 AMD 1-1979 标准详情
- 标准号:IEC 60449 AMD 1-1979
- 中文标题:建筑物电气设施的电压区段 修改1
- 英文标题:Voltage bands for electrical installatons of buildings
- 标准类别:国际电工委员会标准
- 发布日期:1979
Extends the scope by d.c. electrical installations supplied at a nominal voltage up to and including 1500 V. Adds a new clause 4: D.c. voltage bands. Gives for earthed systems the values of voltages between pole and earth and between poles. Specifies
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