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 232
ltage of a piece of apparatus,according to the rated voltage and output of the apparatus. Forexample, a transformer of any output whose rated terminal vol-tage is 20,000 would, according to the recommendations of theAmerican Institute of Electrical Engineers, be tested with 40,000volts, whereas a… … /o eo JO 40 so 60 ro ao 90 /oo //o /eo /so /fo /so /f/LO-VOLTS-SOU^ffr ffOOT or/^£AN SQUA/TEFig. 188. Curve Showing Relation between Sparking Distance and Voltage testing of small samples of insulating material. For example, a sheetof fuller board, mica-canvas, oiled linen or cloth, would be…
Electrical engineering
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