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 207
TYPE Lever or knife switches are the ones most familiar to thoseconnected with electrical work, but there are many forms andmodifications which have been developed for various uses. Plain Knife Switch. Direct Control. Plain lever switchesmounted on the front of the switchboard are used for all low… … Fig. 55. Exploded View of Double-Pole Lever SwitcliCourtesy of General Electric Company Fig, 55 shows an exploded view of a double-pole lever switch. Someof the points of advantage claimed for this switch will show whatcare must be used in the design of this class of apparatus: They are in…
Electrical engineering
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