In order to ensure accurate measurement of the test values ​​of the insulation layer resistance R15s and R60s of the photovoltaic cable, we generally use a large-capacity insulation resistance tester with fast charging speed. According to relevant regulations in my country, the output short-circuit current of the insulation resistance tester should be greater than 0.5mA, 1mA, 2mA, and 5mA, and in situations with high requirements, an insulation resistance tester with a larger output short-circuit current should be selected as much as possible.

The quality of high-temperature wires is directly related to the user's electrical safety. Therefore, when purchasing or selecting, how to accurately check and quickly identify the authenticity of high-temperature wires and cables is a skill that users must master. Below, Suzhou Wire and Cable Group Co., Ltd. introduces several manifestations of unqualified high-temperature wires and cables to help you quickly identify the authenticity.