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Composite Long Rod Insulator - China
price: 1.00 Dollar US$
Composite long rod insulators are critical components in high-voltage power transmission systems, designed to provide reliable insulation while minimizing weight and maintenance requirements.
Made from advanced composite materials such as fiber-reinforced polymer (FRP) cores with silicone rubber sheds, these insulators offer superior mechanical strength, hydrophobicity, and resistance to pollution compared to traditional porcelain or glass insulators.
Applications
High-Voltage Transmission Lines: Used in suspension strings for straight-line supports and tension strings for anchor and dead-end towers.
Substations: Installed in outdoor substation portals and jumpers to provide safe electrical insulation.
Pole Supports: Serve as guy strain insulators for wooden poles and occasionally for steel towers, particularly in areas with challenging mechanical loads.
Design Features for Extra-High Voltage (EHV) Systems
For voltages above 230 kV, composite long rod insulators are often equipped with corona rings, which: Reduce electrical stress along the insulator surface Minimize corona discharge, preventing surface degradation Extend the insulator’s service life in harsh outdoor environments
Company Contact:
- Phone: 18330187077
- Address: No.268, Xingye East Street, Xinji Economic Development Zone, , Hebei , Hebei , China
- Email:
- Website: https://www.yrinsulators.com
Published date: May 13, 2026
- Business Description: Shijiazhuang Yongrui Electrical Equipment Co., Ltd was established in 1989 and has more than 30 years of manufacturing experience, and is located in No.
268, Xingye East Street, Xinji Economic Development Zone, Hebei Province, China.
We have four workshops and the total area is 30, 000 square meters.
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