When testing a surge protector, the withstand voltage tester mainly evaluates its insulation and withstand voltage under high voltage conditions. Specifically, the withstand voltage tester checks whether the surge protector can withstand without breakdown or damage by applying a DC or AC voltage higher than its normal operating voltage to the surge protector for a certain period of time. This testing process is critical to ensure that the surge protector can maintain its protection performance under extreme voltage conditions.

The following are several key points for the withstand voltage tester to test the performance of a surge protector:

Insulation performance: The withstand voltage test verifies the insulation performance of the surge protector to the ground and other conductors under normal operating voltage. Too low insulation resistance may cause leakage or other safety issues, so this test is important to ensure the electrical safety of the surge protector.

Withstand voltage: By applying a voltage higher than the normal operating voltage, the withstand voltage test can evaluate the surge protector's ability to withstand high voltage. This helps ensure that the surge protector can maintain its structural and functional integrity when it encounters lightning strikes or other transient overvoltage events, thereby effectively protecting the back-end circuits and equipment.

Safety performance: The withstand voltage test also focuses on whether the surge protector will experience breakdown, flashover or mechanical damage during the test. The occurrence of these phenomena may mean that there are problems with the safety performance of the surge protector, which requires further inspection and treatment.

Compliance with standards: Withstand voltage tests are usually conducted in accordance with relevant national or industry standards to ensure that the performance of the surge protector meets the specified requirements. This helps to improve the market recognition and user trust of surge protectors.

When our company uses a withstand voltage tester to test surge protectors, it mainly evaluates their insulation performance, withstand voltage capability and safety performance under high voltage conditions. These test results provide an important basis for the design, manufacture and use of our company's surge protectors. (Picture of a withstand voltage tester)