Specifications: 1) XLPE insulated / copper or aluminum / PVC sheathed or PE sheathed 2) XLPE insulated / copper or aluminum / steel tape armoured / PVC sheathed or PE sheathed 3) XLPE insulated / copper or aluminum / thin or thick steel wire armoured / PVC sheathed or PE sheathed Executive standard : 1)GB/T 12706.1-2002(Equivalent IEC60502-1) 2) GB/T 12706.2-2002(Equivalent IEC60502-2) 3) GB/T 12706.3-2002(Equivalent IEC60502-3) Drums