GB/T 5582-1993
AbolishedExternal insulation pollution classes of high-voltage electric power equipments
高压电力设备外绝缘污秽等级
Application Summary AI generated
This standard defines pollution levels for the external insulation of high-voltage electrical equipment, categorizing environmental contamination severity to guide creepage distance requirements. It is applied in China for the design, selection, and testing of insulators and bushings used in power transmission and distribution systems operating above 1 kV. The classification helps ensure reliable performance under polluted conditions, such as in industrial areas or coastal regions.
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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.