1 IEC, ASTM, DIN, BS standard 2 ISO,CCC,CB certification 3 Response within 12 ... cable ducting.Standards: BS6622, BS EN/IEC 60228Conductor: Class 2 stranded plain copper conductor to BS EN 60228:2005 ( ... (11kV), 12/20kV(24kV), 19/33kV, 26/35kV(35kV).2. No. of core: Single core or three cores.3. ... The single core armoured cables are used for D.C. system only. If used for A.C. system, the magnetic isolation ...