GB/T 20642-2006
ActiveImpulse puncture test in air on insulators for overhead lines
高压线路绝缘子空气中冲击击穿试验
Application Summary AI generated
This standard specifies the test method for determining the impulse puncture voltage of overhead line insulators in air. It is applied in the electrical power industry to evaluate the insulation performance and reliability of ceramic, glass, or composite insulators under lightning or switching surge conditions. The test is critical for quality assurance and design validation of insulators used in high-voltage transmission and distribution lines.
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