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Extension Link for Overhead Lines | HDG Steel – YiHaoPower

  • High-Grade Carbon Steel: Manufactured from premium carbon steel to ensure exceptional structural integrity and long-term field reliability.
  • Heavy Hot-Dip Galvanizing: Thick, uniform zinc surface protection delivers outstanding corrosion resistance in harsh outdoor environments.
  • Distance Adjustment Link: Designed to extend insulator strings and adjust physical clearance between power fittings and tower attachments.
  • Seamless Oval Design: Smoothly rounded inner and outer contours prevent mechanical stress concentration and protect connected hardware from wear.

Need Custom Specifications? Contact YiHaoPower today for CAD drawings, technical data sheets, and direct factory wholesale quotes.

Product Overview

The Extension Link (UL Series Oval Link) is a versatile link hardware component essential for high-voltage overhead power transmission and distribution lines. Manufactured by YiHao Power, this hardware is used to extend the connection distance of insulator strings, adjust line clearance, and connect various clevises, shackles, or hooks. Its robust carbon steel construction ensures balanced mechanical stress distribution across power grid assemblies.

Technical Specifications

Parameter Specification
Product Model UL Series Extension Link (UL-7 / UL-10 / UL-12 / UL-16 / UL-20)
Body Material Carbon Steel
Surface Protection Hot-Dip Galvanized (HDG)
Standard Compliance ISO / ASTM / IEC / BS Standards Compliant
Application Scope Overhead Transmission Lines, Substations & Insulator String Assemblies

Key Performance Features

  • Precision Manufacturing: Solid, seamless oval design ensures consistent performance and high resistance against dynamic wind loads.
  • Flexible Assembly Function: Simplifies hardware positioning and provides essential flexibility when coupling different line fittings.
  • Long-Term Anti-Corrosion: Heavy zinc coating insulates the steel from moisture, industrial air pollutants, and salt spray exposure.

Quality Assurance

Every batch of extension links manufactured by YiHao Power undergoes strict quality control, including non-destructive flaw testing, dimensional checks, and zinc coating thickness inspection.