Electrical and mechanical function inspection method of charging pile cable

With the popularity of electric vehicles, the frequency of use of charging pile cables in daily life has also greatly increased. In order to ensure precise control and safe operation of the entire charging process, we need to check the electrical and mechanical functions of the charging pile cables.

1. Electrical function inspection

A qualified charging pile cable needs to undergo a number of tests, and can only leave the factory after passing the verification. Among them, conductor resistance, insulation resistance, product voltage test, and voltage test between insulation cores are all important. Conductor resistance directly reflects the electrical transmission of the cable. Function, and directly affect temperature, life, voltage drop, operation safety, etc. During the live operation of the cable, the conductor material and cross-sectional area are mainly studied. If the quality of the conductor material is not good enough, its performance will not pass the test and will directly affect the cable. Temperature, lifetime, voltage drop and operational safety during live operation.

2. Mechanical function inspection

Mechanical properties mainly include tests of tensile strength and elongation at break of insulating and sheathing materials, including before and after aging as well as progressive bending test, bending test, core breaking test under load, core tearing test of insulated wire, static bending test, etc., aging The tensile strength before and after and the elongation at break before and after aging are one of the important criteria for evaluating whether the cable insulation and sheath are excellent. The charging pile cable must not only meet the tensile strength, but also have good flexibility and aging resistance. The main purpose is to judge whether the insulation and sheath materials can maintain their original functions under high temperature conditions. Once the cable is unqualified and the aging resistance is not good, it will be easy to break, and there is a risk of electric shock.

To learn more about EV cables and charging pile cables, please visit OMG's official website: https://www.omgevcable.com/