IEC 60449-1973 建筑物电气设施的电压区段

标准号：IEC 60449-1973
中文标准名称：建筑物电气设施的电压区段
英文标准名称：Voltage bands for electrical installiatons of buildings
标准类型：P91;K04
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：P91;K04
国际标准分类号：91.140.50
适用范围：Is intended to furnish the basis for the uniform fixing of voltage bands. Applies to a.c. electrical installations of buildings supplied at a frequency not exceeding 60 Hz and at a nominal voltage up to and including 1000 V. Defines voltage bands which a