DIN 41775-1979 静态电源转换器.用于镍/镉和镍/铁蓄电池充电用具有W特性曲线的半导体整流设备.要求
Static power convertors; semiconductor rectifier equipment with "W"-characteristic for charging of nickel/cadmium and nickel/iron batteries, requirements
Static power converters; semiconductor rectifier equipment with ?W-characteristic for charging of nickel/cadmium and nickel/iron batteries; requirements