High voltage cables (45 kV up to 225 kV ) 26/45 ( 52 ) kV 36/63 ( 72,5 ) kV 64/110 ( 123 ) kV 76/132 ( 145 ) kV 87/150 ( 170 ) kV 130/225 ( 245 ) kV These cables are manufactured according to international specifications: - BS - HD - and others and they are single core . Conductor: Copper or aluminum stranded according to the international specifications IEC 60228. In special cases conductors of solid aluminum are manufactured . Insulation: - XLPE - EPR Screening: Copper wires or tapes and lead sheath where required. Armouring: If mechanical protection is required , given the fact that the cables are single core , the armouring will be non magnetic, that is copper, aluminum, stainless steel, e.t.c . Sheath: - PVC - PE These cables are manufactured also with special properties in fire conditions as flame retardant , low or zero smoke and toxic gas emissions ( LSF , LS 0 H , e.t.c . ) Manufacturing specifications: All the international specifications - IEC - BS - HD - AEIC - and other