Aluminum alloy cables are available in YJHL8 (AC90), YJHLV82 (ACWU90), YJHLV (TC90), YJHLV22, VHLV22, VHLV and other models. The 8000 series conductor of aluminum alloy cable is a kind of high elongation material. After adding iron, magnesium, rare earth and other materials to pure aluminum, its electrical conductivity is equivalent to that of pure aluminum, and it is subjected to extrusion stranding process and special annealing treatment. The “squeeze” of the voids in the aluminum alloy is reduced to reduce the cross-sectional area, and the flexibility, creep resistance, wear resistance and tensile strength are close to or even exceed the copper conductor, and the insulating material is low. The smoke is halogen-free and flame retardant, and the outer layer is made of aluminum alloy self-locking armor. The aluminum alloy cable has high-strength creep properties due to the addition of iron, which keeps the connection stable even during long-term overload or overheating. Its rebound is 40% more than a traditional copper cable, and its flexibility is 24% higher than that of a traditional copper cable. In addition, high-tech low-smoke, halogen-free, flame-retardant and environmentally friendly insulation materials also greatly improve safety performance and reduce risks