Hawkins electrical guide. Questions, answers & illustrations; a progressive course of study for engineers, electricians, students and those desiring to acquire a working knowledge of electricity and its applications; a practical treatise (1914)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 41
ibility. About thisconductor are woven two layers of cotton thread. Over this are woven, in oppositedirections, several layers of specially prepared tape which has been given two coatingsof fine insulating varnish. Two strong braids of cotton form the outside covering, andeach of these different… … Fig. 814.—Paper insulated lead encased telephone table. 730 HAWKINS ELECTRICITY Oues. For what service is slow burning weather proofwire not suited? Ans. It is not adapted to outside work. Safe Carrying Capacity of Wire.—All wires will heatwhen a current of electricity passes through them. The…
Electrical engineering
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