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Copper Bonded Down Conductor

A Copper Bonded Down Conductor is a lightning protection conductor made with a steel core bonded with a copper layer, providing high conductivity, mechanical strength, and corrosion resistance.



Copper Bonded Down Conductors are widely used in lightning protection and earthing systems where durable and cost-effective conductors are required. The copper layer provides excellent electrical conductivity and corrosion resistance, while the steel core provides mechanical strength and rigidity.

These conductors safely carry lightning current from air terminals to grounding electrodes and are suitable for buildings, towers, substations, and industrial installations.

Key Features

  • Copper outer layer for conductivity
  • Strong steel core construction
  • Excellent corrosion resistance
  • High mechanical strength
  • Long underground and above-ground service life
  • Cost-effective alternative to solid copper
  • Suitable for harsh environments

Common Applications

  • Lightning Protection Systems
  • Earthing Networks
  • Communication Towers
  • Power Substations
  • Industrial Facilities
  • Solar Power Plants
  • Commercial Buildings

Typical Specifications

  • Core: Steel
  • Outer Layer: Copper Bonded
  • Diameter: 8–10 mm (typical)
  • Copper Thickness: Depends on manufacturer
  • Installation: Vertical down conductor or grounding connection
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Copper Bonded Down Conductor

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