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Overhead Conductors and Wires

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Overhead Conductors and Wires

As a Japanese manufacturer of overhead conductors with a full product line-up, Sumitomo Electric has developed numerous new technologies and products. Not only do we meet our customer needs through our innovative technologies providing large capacity and low loss overhead conductors, but we also offer a comprehensive array of products to handle wind and snow weather conditions that are an inherent part of overhead conductor usage.

Product features

  1. Overhead conductor manufacturer with an extensive product portfolio
  2. Proven track record in product delivery around the globe and long-term operation
  3. Excellent connectors and other auxiliary part technology

Product lineup

  • Overhead conductor (ACSR)
  • Low Loss conductor
  • High temperature low sag conductor
  • Wind pressure-resistance conductor
  • Snow-resistance conductor
  • Composite fiber optic overhead ground wire
  • High Strength & Thermal Resistant Conductor

Product applications

GAP Type Conductor

GAP Type Conductors (HTLS*)

"GAP construction" featuring a small gap between the steel core and thermal-resistant aluminum alloy layer enables to uprate the existing transmission capacity by 2 times while maintaining the same ground clearance as conventional ACSR conductors.
*HTLS=High Temperature Low Sag


Invar Core Conductors (HTLS)

Invar Core Conductors (HTLS*)

With the combination of super thermal-resistant aluminum alloy and aluminum-clad Invar core, Invar core conductors offer excellent sag control and uprated current capacity by 2 times.
*HTLS=High Temperature Low Sag


Low Loss Conductors

Low Loss Conductors

Low Loss conductors can reduce electrical transmission loss by 25% compared to conventional ACSR conductors. This conductor can also reduce CO2 emission and are environment-friendly.


High Strength & Thermal Resistant Conductor

High Strength & Thermal Resistant Conductors

High Strength & Thermal Resistant Conductors has been developed for long span projects such as sea or river crossing, combining extra high strength aluminum-clad steel and thermal-resistant aluminum alloy. This conductor is specialized in the reduction of sag to assure adequate clearance for these crossings whilst maintaining the high current capacity.


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