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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 172

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 172
Fig. 25. Front View of Large Modern Switchboard 149 28 UNDERWRITERS REQUIREMENTS … gineering and operating requirements, and the interest, from theviewpoint of fire, centers in the protection of conductors and thelocation of board and instruments to reduce the probabiHty of firespreading from the board to the other parts of the building. Order-liness and cleanliness should be…

Electrical engineering

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