IEC 60999-2:2003
连接器件.电气铜导体用有螺纹和无螺纹的线夹部件的安全要求.第2部分:导体截面为35mm2~300mm2的特殊要求
Connecting devices - Electrical copper conductors; Safety requirements for screw-type and screwless-type clamping units - Part 2: Particular requirements for clamping units for conductors from 35 mm<(hoch)2> up to 300 mm<(hoch)2> (included)