The service life of the long-life cable can reach 80 years at 70 ° C and 70 years at 85 ° C. The use of double-layer coextrusion technology, the internal insulation using irradiation crosslinked polyethylene to increase the electrical performance of the cable, the external insulation using irradiation crosslinked halogen-free low smoke flame retardant polyolefin insulation material to increase the mechanical properties of the cable, in the event of fire on the cable fire will be automatically extinguished to prevent the spread of the fire. When burned, the cable will not release toxic gases and will reduce smoke emissions. This product is suitable for industrial and civil buildings with rated voltage 0.6/1 kV double-layer coextruded insulation radiation crosslinked halogen-free low smoke flame retardant, fire resistant power cable.