The car in the process of operation and use, it is inevitable that collision, friction, resulting in high-voltage circuits and vehicle chassis insulation between the decline, so we must first test the high-voltage cables and parts of the body of the insulation resistance is located in the range of the specified value.
Megohmmeter, also known as digital megohmmeter, high-voltage insulation resistance tester, insulation resistance meter, etc., is mainly used to check the electrical equipment, electrical wiring to the ground and phase-to-phase insulation resistance, in order to ensure that these equipment, electrical appliances and wiring work in a normal state, to avoid electrocution injuries and damage to equipment and other accidents.