Abstract: In overhead transmission lines, A large number of crimped power fittings are used to connect conductors and ground wires in overhead transmission lines (Tension clamps and splice tubes), It must withstand all the tension of the wire or ground wire, while also being a current conducting conductor, Once installed, this type of hardware will no longer be disassembled, The reliability of its long-term operation is related to whether the transmission line can operate safely and stably.