Cite
MLA Citation
British Standards Institution,. BS EN IEC 60840 AMD1. Power cables with extruded insulation and their accessories for rated voltages above 30 kV (Um= 36 kV) up to 150 kV (Um = 170 kV). Test methods and requirements.. London : British Standards Institution, 2021. http://access.bl.uk/ark:/81055/vdc_100127880020.0x000001