Exothermic Welding – 5 Benefits of the Exothermic Weld Connection

Published 29 Nov 2018

Exothermic Welding

Exothermic Welding

  • uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager

The following table highlights 5 Benefits of using Exothermic Welding systems for Earthing & Lightning Protection when permanently joining copper conductors.

Mechanical Connection Exothermic Welding
Connection is made by pressing and tightening. Contact connection. Connection is made by fusion – welding is more reliable and durable. Irreversible molecular bond.
Lower conductivity than the copper conductors involved. Conductivity equal to or greater than the copper conductors involved.
Transient connection. Electrical degradation over time. Permanent connection. Lifetime equal to that of the earthing system.
Suffers with the flow of current, faults or repetitive discharges. Able to withstand repeated current flow without degrading. Minimum maintenance.
Connection depends on the tightening torque applied by the installer. Once the exothermic welding mould is closed the process is autonomous, reproducible and uniform.

Exothermic Welding

AT3W & Thorne & Derrick

Thorne & Derrick are working with AT3W to introduce and develop specifications and business for the Apliweld Secure+ exothermic welding system.

Jason Leatherland (UK Manager AT3W) comments, “having worked successfully together with Thorne & Derrick in the past, I was keen to demonstrate and discuss this product system with them as I knew they would be best suited to showcase the system, and in particular, its increased health and safety benefits, to the most relevant sectors in order to increase the users efficiency and reduce the potential of site accidents from exothermic welding.”

Jonny Hewitt (T&D UK Power Team) added, “working with the UK DNO’s and their preferred ICP’s we look forward to further developing relationships and presenting the exothermic welding system to existing and new clients. We will be working closely with AT3W to introduce the product to market and improve worker and site safety in the utility industry.”

Pictured: Jonny Hewitt (T&D) with Jason Leatherland and Chris Dodds (T&D).

Exothermic Welding

💡 HV Earthing & Lightning Protection Training Courses go to  ➡  Online Training Resource provided by Ian Griffiths, Principal Engineer at GreyMatters. Ian is an Earthing & Lightning Consultant of 27 years, one of the top 1% UKAS accredited CDEGS consultants and professional advisor to international utility companies, data centre and infrastructure developers. See our Blog to learn more about GreyMatters and High Voltage Earthing.

LV MV HV Cable Accessories & Substation Electrical Equipment

Thorne & Derrick are Specialist Distributors of leading manufacturers of Cable Accessories, Substation Earthing, Jointing & Installation Equipment.

LV MV HV cable accessories from stock used to joint, terminate, connect, cleat and gland power cables to air and gas insulated substations, transformers, switchgear and overhead line networks.

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Further Reading