Cite
APA Citation
Institution,, B. S. (2021). BS EN IEC 60502-4. 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).. London : British Standards Institution. http://access.bl.uk/ark:/81055/vdc_100119709325.0x000001