High-Voltage Composite Strain Insulator String
High-Voltage Composite Strain Insulator String is designed to provide reliable electrical insulation and mechanical support for overhead transmission lines and other high-voltage power infrastructure. It combines a high-strength fiberglass core rod with silicone rubber sheds, offering excellent tensile performance, hydrophobicity, pollution resistance, and weather durability.
Suitable for 11kV–220kV transmission systems, the composite strain insulator string is well suited for coastal, mountainous, industrial, and heavily polluted environments. Its lightweight construction also simplifies transportation and installation while supporting stable, long-term operation of high-voltage power networks.
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Our composite suspension insulators feature high-performance silicone rubber sheds with excellent hydrophobicity. The water-repellent surface helps prevent continuous water-film formation and reduces the impact of surface contamination, supporting higher pollution flashover performance and reliable insulation in humid, polluted, and harsh outdoor environments.
The high-strength fiberglass core rod provides excellent tensile and bending strength, delivering dependable mechanical support for overhead conductors. This robust composite structure helps the insulator withstand wind loads, mechanical stress, and other demanding operating conditions, contributing to stable and reliable high-voltage power transmission.
Technical Data
| Model | Insulator Type | Model of Tension Clamp | Tensions String Size x Application Cable Size | ||||
| -1 | -2 | -3 | -4 | -5 | |||
| NC10-W/J-X | FNB-10/70-WD | NEJ | 16-35 | 50 | 70-95 | 120-150 | 185-240 |
| NC1-S/J-X | FNB-1/70-DU | 25-50 | 70-95 | 120 | 150 | 185-240 | |
| NC10-W/L-X | FNB-10/70-WD | NLL | 16-70 | 50-95 | 70-150 | 120-185 | 120-300 |
| NC1-S/L-X | FNB-1/70-DU | 16-70 | 50-95 | 70-150 | 120-185 | 120-300 | |
| NC10-W/K-X | FNB-10/70-WU | NEK | 35-70 | 35(95-150) | 50-95(185-240) | 120(300) | 150-300 |
| NC1-S/K-X | FNB-1/70-UU | 16-35(35-70) | 50-95(95-150) | 120-150(185-240) | 185(300) | 240-300 | |
Overall and mounting dimensions(mm)
