U210B standard glass insulator

U210B standard glass insulator insulator sub-insulation resistance measurement 1) Insulation resistance measurement is a measure of porcelain insulators, glass insulators, composite insulators of the insulation resistance. Purpose of measurement is to check the condition of the insulation insulator, we found insulator insulation deterioration and defects such as insulation breakdown. (2) 35 ~ 220kV overhead transmission line insulator insulation resistance measurement recommended 5000V megger measure. The eligibility criteria 1. The insulation resistance (1) insulator newly installed insulation resistance should be greater than or equal to 500MΩ. (2) the operation of the insulator insulation resistance should be greater than or equal to 300MΩ. 2. insulator deterioration determination principle (1) Insulator insulation resistance is less than 300MΩ, and greater than 240MΩ insulator can be judged to be low. (2) Insulator insulation resistance is less than 240MΩ insulator can determine a value of zero. Composite insulation generally do not use this method to test the insulation resistance. Insulator insulation resistance measurement sub 1) Insulation resistance measurement is a measure of porcelain insulators, glass insulators, composite insulators of the insulation resistance. Purpose of measurement is to check the condition of the insulation insulator, we found insulator insulation deterioration and defects such as insulation breakdown. (2) 35 ~ 220kV overhead transmission line insulator insulation resistance measurement recommended 5000V megger measure. The eligibility criteria 1. The insulation resistance (1) insulator newly installed insulation resistance should be greater than or equal to 500MΩ. (2) the operation of the insulator insulation resistance should be greater than or equal to 300MΩ. 2. insulator deterioration determination principle (1) Insulator insulation resistance is less than 300MΩ, and greater than 240MΩ insulator can be judged to be low. (2) Insulator insulation resistance is less than 240MΩ insulator can determine a value of zero. Composite insulation generally do not use this method to test the insulation resistance.