This instrument can detect technical indicators such as the insulation structure and insulation strength of tested instruments and electrical appliances. It is widely used in electrical equipment, instruments, transformers, power cords, watt-hour meters, motors, power plug sockets, and cables. Withstand voltage testing provides methods for implementing national safety standards, highlighting its importance. It has become indispensable for scientific research institutions, measurement and testing departments, and the power and electronics industries in evaluating electrical devices, electronic instruments, and household appliances.