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 201
ently the greatest pains should be taken to preventwires from coming in contact with grounded piping or other metal. Alternating-current systems almost invariably include trans-formers in which the higher line voltage is stepped down to thevoltage required for lamps and motors. Common line voltages… … Fig. 52.* Transformer Installation inFireproof Vault * Courtesy Inspection Department, Associated Factory Matiuil Fire In ce Companies, Boston, Mas 177 56 UNDERWRITERS REQUIREMENTS ondary or low-voltage side be grounded, provided the maximumdifference of potential between the grounded point and any…
Electrical engineering
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