GB/T 19443-2017
ActiveInsulators for overhead lines with a nominal voltage above 1500V—Ceramic or glass insulator units for d.c. systems—Definitions,test methods and acceptance criteria
标称电压高于1500V的架空线路用绝缘子 直流系统用瓷或玻璃绝缘子串元件 定义、试验方法及接收准则
Application Summary AI generated
This standard defines terminology, specifies test methods, and establishes acceptance criteria for ceramic or glass insulator units used in direct current (d.c.) overhead power transmission lines with nominal voltages exceeding 1500V. It is applied by manufacturers and utilities to ensure the mechanical and electrical reliability of insulator strings in high-voltage d.c. systems, particularly for long-distance power transmission projects. The standard covers critical performance factors such as thermal-mechanical stress, corrosion resistance, and electrical flashover behavior unique to d.c. environments.
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