Why connectors need insulation resistance and dielectric voltage testing process?

I. Why connectors need insulation resistance and dielectric voltage testing process? In fact, insulation resistance and dielectric withstand voltage testing are two processes used by connector manufacturers to qualify and test the connector's internal parts. These tests will ensure that the product will not malfunction and will not leak when the connector is used under ambient conditions at the rated operating voltage (derated from the test voltage).1. Connector Insulation Resistance Testing Processes Insulation Resistance (IR) testing is performed to determine the resistance of the insulating material to leakage of electrical current. The purpose of the insulation resistance (IR) test is to determine the resistance of an insulating material to current leakage, which is measured on a surface when a DC potential is applied at 500 VDC. Because there are multiple variables that can cause a part to fail before the result is calculated, condensation on the part, body cracks, and insulation damage. 2. The connector dielectric withstand voltage test inspection process Dielectric Withstand Voltage (DWV) test is designed to take into account transient over-potentials caused by switching, surges, and other phenomena, so that proper operation can be established at test voltages three times the rated operating voltage of the system being tested. The breakdown voltage (BDV) of the part is determined (DWV = 0.75 x BDV), BDV is the voltage at which the part arcs at the metal interface, considering pin-to-pin or pin-to-hardware, and operating voltage = 1/3 x DWV or 0.25 x BDV.

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