The Exothermic Welding Process is a method for making electrical connections from copper to copper or copper to steel. This exothermic welding uses a copper mixture that is melted at high heat to permanently join the conductors.
In the exothermic welding process to join the conductors requires a
a mold (exothermic welding mold) made from graphite material (pencil material) where liquid copper resulting from an exothermic reaction flows through the mold onto the conductor and covers it to be welded. The advantage of the exothermic welding system is that the weld that is formed has greater mechanical strength
higher than other forms of welding process, and excellent corrosion resistance. Welding with an exothermic welding system also provides good stability in the electric current and does not experience an increase in electrical resistance during installation.Exothermic welding connections produce a permanent joint, far superior in performance to clamp systems. Especially regarding mechanical pressure and connectivity between material surfaces.As recommended by SNI, IEC, and IEEE, all grounding system connections must be made with Exothermic Welding. Connections must include, but are not limited to cable to cable, cable to rod (Ground Rod), cable to copper bar terminal (Copper Busbar), Ground rod to ground rod, cable to steel (Steel), cable to profile steel (Rebar) and the cable to the lug (Skun).Standard equipment used in conjunction with the main equipment in the exothermic welding process:Flint Igniter / Fire StarterTo start the burning process.Cable Clean Brush / Cable BrushTo clean cables or other conductors.Mold Brush / Molding BrushTo clean molding.Busbar Brush / Wire BrushTo clean metal or copper surfaces.Scraper / ScrapTo clean the scale in the molding container after completing the exothermic welding work.Three main equipment in exothermic welding process:1. Weld Metal Powder2. Mold3. Handle Clamp / Pliers