... electrical industry, 50Hz, 1kV and voltage below. StandardNational Standard GB 5023-1997, JB 8734-1998, etc.International Electrical Committee ... so on.SpecificationsZA (C) - VV copper conductor PVC insulated heat resistant power cableZA (C) - YJY copper conductor XLPE insulated ... cable BV, RV, BVV copper conductor PVC insulated heat resistant electrical cable, including 450V - 750V and voltage ...