International Library of Technology · Scranton, International Textbook Co. · leaf 532
Pig. 1. Fig. 1 shows a gas pipe that was melted by an arc causedby a heavy current-carrying circuit crossing a signal cir-cuit that was connected to the pipe. The connection to thepipe was poor and unsoldered. … Fig. 2. Fig. 2 shows joints made with No. 10 wire on a circuitdesigned to carry 200 amperes. The use of such a poor joint gave rise to heating thatresulted in the burning out of thewire. Fig. 3 shows a fixture canopywith a hole melted through it,caused by a fixture cut-out in-side the canopy…
Electrical engineering
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