XLPE insulated power cable has a number of advantages over paper insulated and PVC insulated cable. XLPE cable has high electric strength, mechanical strength, high-ageing resistance, environmental stress resisting anti-chemical corrosion, and it is simple construction, using convenient and higher operating of long term temperature. It can be laid with no drop restriction. Various of flame-retardant and non-flame retardant XLPE cable can be manufactured with three technologies(peroxide,silence,and irradiation cross linking).The flame-retardant cable covers all kinds of low- smoke,low-halogen,low-smoke halogen free and non-smoke no halogenated and three classes of A,B,C.