Heating of large steel-cored aluminum conductors

A. M. Rossman: I was shown recently some results of a heating test of a cable passing through a clamp. The cable was 300,000 cir. mil copper cable and the clamp was a drop forging. In that case the current was raised to such a value as to give an appreciable heating of the conductor. The clamp showed a temperature several degrees higher than the conductor. This is contrary to the results which Mr. Wood obtained.