ssion line are being frequently necessitated. by means of which electric current will be sent to the insulated with three layers of tape and two additional Pan-American Exposition for all the manifold pur- Porcelain tubes are placed over each cable at the in- layers at the clamps, after being… … gency switch upon rolled out and an- 2.—Lightning Arresters. 3.—Terminus of High Potential Bus- 1.—High Potential Panels for the switchboard other substituted Bars, and Double-Throw Switches. Transformers. will be depended for it. upon to open the A three - phase dynamo field cir- General Elec-…
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