International Library of Technology · Scranton, International Textbook Co. · leaf 133
ime, becausethe rubber is, to a large extent, proof against moisture.On the other hand, paper insulation will be damaged if the §15 ELECTRIC TRANSMISSION. 17 lead sheath becomes punctured so as to admit moisture.Paper insulation is, however, cheaper than rubber, and ifthe cables are carefully… … :tfS
Electrical engineering
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