Cable is one of the electron beam type, widely used in various electronic devices, such as electric cars, household appliances, communications equipment, automation equipment, electronic equipment, the different effects of electronic wiring harness connecting wire have different production standards, specific include the thickness of the specifications of the wire and terminal connections, the material of wire harness and so on.

Some irregular manufacturers, insulation layer with recycled PVC, conductor with recycled copper, copper clad aluminum, steel wire or several hybrid. These kinds of conductor internal resistance is very harmful to electronic equipment, so the choice must be careful.

The normal connecting wire insulation layer must be made of new anti-oxidation PVC plastic, the core conductor is made of oxygen free copper, tin copper or silver-plated copper, etc., which must be made by multiple processes and precision equipment.

The high quality connection wire must not only be insulative and heat-resistant, but also the conductor core must be twisted or woven with seven strands, so as to have enough density to reduce the resistance value, capacitance and inductance, and output enough current. To judge the quality of the connection line can not only look at the appearance of size, more important is to see the inside of the copper core thickness. Because some wires will be made very thick rubber core is very thin, so the main cut surface from the copper core size to confirm.