There are many testing standards for EV charging cables, no matter which standard, European standard, American standard or national standard, there are generally many items that need to be tested. Including permittivity test, insulation resistance test, withstand voltage test, etc., we usually need to consider it when we design and select products.
The detection of these items is to ensure the performance of the cable, in order to ensure that the cable is more secure and reliable. The purpose of the permittivity test is: we all know that the capacitor is an energy storage device, and the cable can be approximately regarded as a capacitor. Under the condition that the cross-section of the cable conductor remains unchanged, the insulation thickness decreases and the cable capacitance increases, and the capacitance will also increase after the cable insulation is damp. Therefore, by measuring the working capacitance of the wire and cable, the quality of the cable insulation and whether the cable insulation thickness can be indirectly measured. Compliance.
The purpose of cable insulation resistance measurement is: measuring wire and cable insulation resistance is one of the main testing items in the wire and cable manufacturing process, and it is one of the effective methods to detect the insulation of cable lines. The higher the insulation resistance, the better the insulation performance of the wire. During the operation of the cable, if the leakage current on the surface of the cable is large, it is easy to cause leakage.
The main function of measuring the DC resistance of the cable conductor is: measuring its DC resistance can check whether the cross-section and conductivity of the cable conductor meet the standards, and whether there are defects such as local fractures.
The purpose of measuring the withstand voltage test of the cable is: the main function of the withstand voltage test on the cable is to assess the reliability of the cable running under the working voltage and find serious defects in the insulation, so as to avoid safety problems in the use of the cable.
For more EV charging cable testing standards and product details, please visit OMG's official website:https://www.omgevcable.com/
For more EV charging cable testing standards and product details, please visit OMG's official
