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Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)

American Technical Society · Chicago : American Technical Society · leaf 268

An illustration from Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc., 1916, leaf 268
must be installed complete and, infact, all the mechanical work on the building must be completed asfar as possible, before any conductors are drawn into the conduits.Pains must be taken to make all joints tight, so that there willbe no bad electrical connections between parts of the metal… … Fig. 116. Outlet Box with Connecting Conduit 238 UNDERWRITERS REQUIREMENTS 115 conduit is well grounded and all joints are well made a safe path toground is afforded for a current large enough to blow the fusesprotecting the circuit, thus cutting off the current before the pipe isoverheated or…

Electrical engineering

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