IEC 60502-1 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 1: Cables for rated voltages of 1 kV (Um = 1,2 kV) and 3 kV (Um =*, 2021-02-09 Update
SNI 04-3580-1994 Requirements of copper and alumunium conductor for electric cable insulation