IEC 60502-4:2023
額定電壓為1kV(Um=1.2kV)至30kV(Um=36kV)的擠壓絕緣電力電纜及其附件.第4部分:額定電壓為6kV(Um=7.2kV)至30kv(Um/sub>=36kV
Power cables with extruded insulation and their accessories for rated voltages from 1 kV (Um = 1,2 kV) up to 30 kV (Um = 36 kV) - Part 4: Test requirements on a