Dynamo electric machinery; its design, construction, and operation; direct-current machines (1915)
Sheldon, Samuel, 1862-1920, Hausmann, Erich, 1886- joint author · New York, D. Van Nostrand Company; · leaf 314
Fig. 196. inches, are given in the following table. Frequentlyswitches are provided with fuse connections, and also lugsinto which the ends of the leads are soldered. SIZE OFSWITCH MINIMliM SEPARATIONOF METAL PARTS OFOPPOSITE POLARITY MINIMUM BREAK DISTANCE I2SV. ORLESS 125 V. TO 250 V. 250 V. TO… … Fig. 197- A loooo ampere 500 volt rotary switch for use oncentral-station switchboards is shown in Fig. 197. 117. Fuses. — Fuses are devices intended to protect cir-cuits from destruction or damage which might result from anexcessive flow of current through them. They are made CENTRAL-STATION…
Electric machinery
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