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Exothermic welding, often called Cadwelding or FurseWeld (from W.J. Furse – a leading earthing equipment supplier) is a cost efficient method of making large or small numbers of high quality electrical connections. It is a simple, self-contained system that uses the high temperature reaction of powdered copper oxide and aluminium, within a mould, to form permanent electrical connections.

Typical applications include:

  • Earthing for power plants and sub-stations
  • Telecommunications
  • Transmission and power distribution lines
  • Cathodic protection
  • Rail connections

Exothermic System:

  • requires no external power or heat source
  • creates high quality electrical connections
  • is completely portable
  • is cost effective
  • can be used for over 45 standard connection configurations

Exothermic welding connections have several advantages:

  • tolerant to repeated fault currents
  • highly conductive
  • do not loosen
  • excellent corrosion resistance

Most exothermic welded connections have at least twice the cross-sectional area of the conductors being joined, and an equivalent or greater current carrying capacity.

Corrosion resistance is exceptional because of the very high copper content (>90%) of the alloy.

Nimbus Lightning Protection Ltd. is part of PTSG, a UK market leader that specialises in access and safety, electrical services, specialist building access and fire solutions.

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