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 362
. Theblock and plug are all porcelain,finished in black, and serve asboth a primary switch and a cut-out. The block is mounted on the upper cross-arm of the pole and is shaped so as to be used as aninsulator. The wires may be brought directly from the line to thecut-out, and thence to the primary… … Fig. 285. Sample Mounting for Out-DoorTransformers 321 308 ALTERNATING-CURRENT MACHINERY concentrically with the cavity and by a quarter turn the contactblade is forced between bronze spring terminal clips, and the majoraxis of the elliptical section of the plug brought into line with theminor axis…
Electrical engineering
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