Power Fittings Are Essential For Power Cable Connections

Insulation Piercing Connector is a device used for connection and combination, so power installation companies will use hardware. According to the definition of GB/T5075-2001 national standard "Terms and Terms of Power Hardware": Power hardware is a metal accessory that connects and combines various devices in the power system and plays a role in transmitting mechanical loads, electrical loads and certain protective functions.

Power hardware is a metal part used to connect power transmission line towers, conductors, lightning conductors and insulators, or to protect conductors, lightning conductors, insulators, etc.

Basic requirements: Power hardware is generally made of cast steel and malleable cast iron. It is required that the line hardware should have sufficient mechanical strength, and the hardware for connecting the conductor should have good electrical properties. During the manufacturing process, the line hardware should be free of burrs, flash, sand holes, bubbles, cracks and deformations, the surface should be smooth, and the galvanized layer should be uniform. The matching hardware should be of suitable specifications, without missing parts and rust. The screws and nuts should fit well. The contact surface between the clamp hull pressure plate and the conductor should be smooth. The manufacturing quality and size should meet national standards.

Power hardware power cable conductor connection is an important part of making and installing various types of cable heads. It is very important for the long-term safe operation of the line.

The power cable conductor connection methods include crimping and welding. The requirement of the conductor connection is that the temperature rise does not exceed the temperature rise value of the cable conductor when transmitting current, and it can withstand the allowable tension of the cable conductor.

Crimping is a method of using appropriate mechanical pressure to obtain an electrical contact interface between conductors or between conductors and power connection hardware. According to whether the conductor can be disassembled after connection, it can be divided into clamping (removable) connection and compression (non-removable or dead connection) connection.

Welding method is only used for small-section cable core connection.

Aluminum core crimping, copper core welding or crimping.