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 200
e, liability of injury to persons is not a fire hazard, stillgood construction should provide (both in original installationand in upkeep) all reasonable protection, to persons and property.In direct-current three-wire systems of electrical distribution,the middle or neutral wire is regularly… … Fjg. 51. Approved Transformer Installationon Outside of Building 176 UNDERWRITERS REQUIREMENTS 55 be grounded at each distributing box, through the box; and in over-head systems the neutral should be grounded every 500 feet. Theneutral in such systems is supposed, normally, to carry either…
Electrical engineering
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