... duct.YJY YJLYCopper conductor, XLPE insulated, PE sheathed power cable Aluminium conductor, XLPE insulated, PE sheathed power cableYJV22 YJLV22Copper conductor, XLPE insulated, steel tape armoured, PVC ... : add N before basic type.Low smoke, halogen free,Flame retardant type :add WDZ before basic type. XLPE insulated aluminum core power cable