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BS EN IEC 61238-1-3:2019+A11:2019
Compression and mechanical connectors for power cables Test methods and requirements for compression and mechanical connectors for power cables for rated voltages above 1 kV (Um = 1,2 kV) up to 36 kV (Um = 42 kV) tested on non-insulated conductors (British Standard)
British Standards Institution [bsi]