Power cables with extruded insulation and their accessories for rated voltages from 1kV (Um = 1.2 kV) up to 30kV (Um = 36kV - part 4 : test requirments on accessories for cables with rated voltages form 6kV (Um = 7.2 kV)up to 30 kV (Um = 36 kV) (Malaysian Standard, 1998)