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Exothermic Welding of Heavy Electrical Cables to Rail
Exothermic Welding of Heavy Electrical Cables to Rail
Report Number: R-071 Volume 3
This report includes the results of two research tasks carried out under TCRP Project D-7, "Joint Track-Related Research with the Association of American Railroads/Transportation Technology Center, Inc." (TTCI).  Copper-based, exothermic welding is widely used in railroad tracks to connect electrical cables to rail.  Such welds, when properly made, can have curren-carrying capacity equal to that of the conductor and usually require less maintenance than certain mechanical attachments.  This project evaluated current practices and possible improvements to methods of connecting heavy electrical cables to rail, and it offers recommendations for inclusion into a industry practice for attaching heavy electrical cable to rail.

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