GB/T 21421.1-2008
AbolishedComposite string insulator units for overhead lines with a nominal voltage greater than 1000V - Part 1: Standard strength classes and end fittings
标称电压高于1000V架空线路用复合绝缘子串元件 第1部分：标准强度等级和端部附件
Application Summary AI generated
This standard specifies the standard strength classes and end fitting dimensions for composite string insulator units used in overhead power transmission lines operating above 1000V. It is applied by manufacturers and utilities to ensure mechanical interchangeability and compatibility between insulator components from different suppliers. The standard is critical for designing and procuring reliable insulators for high-voltage AC and DC transmission systems.
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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.