- In this process, granular metallic powder is placed into a high temperature mold and ignited. This ignition process of the particles (exothermic reaction) creates high heat in excess of 1400 degrees celsius and produces molten metal slag. The liquid metal copper to flows into the weld cavity, filling any available space and completes the weld. The weld should then be allowed to cool and solidify. The mold is removed and made ready for the next weld. This entire process takes only seconds to complete.
Exothermically welded connections produce a permanent joint (or connection) superior in performance to any known mechanical or pressure type surface-to-surface contact connector.
By virtue of its molecular bond, an exothermically welded connection will not loosen or increase in resistance overthe lifetime of the installation.
- As recommended by IEC and IEEE regulations all grounding system connections should be made by exothermic weld. Connections should include, but not be limited to, all cable to cable splices, T's, X's, etc.; all cable to ground rods, ground rod splices, cable to steel and cast iron; and cable lug terminations.