Composite insulator

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Composite insulator can be divided into line composite insulator and power stations, electrical composite insulator.

It can also be divided into rod-shaped suspension composite insulators, pin-type composite insulators, cross-arm composite insulators, pillar composite insulators, wind-proof partial composite insulators, and Post composite insulators.

Suspension composite insulators for suspension AC transmission line for transmission line

Voltage level 10 – 1000kV
Rated mechanical load 70-550kN
Suspension composite insulators for DC transmission line
Voltage level ±500–±1100kV
Rated mechanical load 160-1000kN

Executive standard
At present, we encounter three types of common composite insulator standards:

IEC International Electrician
IEC61952
Insulators for overhead lines-Composite line post insulators for alternative current with a nominal voltage > 1000V

IEC61109
Composite insulators for a.c. overhead lines with a nominal voltage greater than 1 000 V – Definitions, test methods and acceptance criteria

GB/T national standard
GB/T 19519
Composite insulators for AC overhead lines with nominal voltages above 1000 V – Definitions, test methods and acceptance criteria

GB/T 20142
Line-column composite insulators for AC overhead lines with nominal voltages above 1000 V – Definitions, test methods and acceptance criteria

ANSI American Standard
ANSI C29.13-2000
American National Standard for Insulators-Composite Distribution Deadend Type