This article covers two specifications of aluminum - core power cables and related model information. Among them, 3×4AWG + 1×6AWG + 2×12AWG consists of 3 main cores of 4AWG, 1 neutral core of 6AWG and 2 auxiliary cores of 12AWG; 3×2AWG + 1×4AWG + 2×12AWG includes 3 main cores of 2AWG, 1 neutral core of 4AWG and 2 auxiliary cores of 12AWG. Under the AWG (American Wire Gauge) specification, the smaller the value, the thicker the wire diameter. The 2AWG and 4AWG main cores can meet different power transmission needs, and the auxiliary cores are suitable for signal transmission or low - power branch power supply.​ Cable models include YJLV and YJLY. YJLV is an aluminum - core cable with cross - linked polyethylene insulation and polyvinyl chloride sheath, while YJLY is an aluminum - core cable with cross - linked polyethylene insulation and polyethylene sheath. Both use aluminum as the conductor, which has both good conductivity and cost advantages; the cross - linked polyethylene insulation layer improves temperature resistance and electrical performance. The polyvinyl chloride sheath is wear - resistant, and the polyethylene sheath has better flexibility, which is suitable for various laying environments.​ Such cables are widely used in industrial equipment power distribution, building branch power transmission and outdoor temporary power supply systems. Their multi - core structure takes into account both main power supply and auxiliary functions, and the material design balances performance and economy, which can ensure stable power transmission in various scenarios.