Electricians' operating and testing manual; (1910)
Horstmann, Henry C. [from old catalog], Tousley, Victor Hugo, 1875- [from old catalog] joint author · Chicago, F. H. Drake & co · leaf 213
ut-outand this should be thoroughly cleaned and tested. Adefective cut-out generally results in burned out coils. Arc Lamps 211 SERIES ARC SWITCHBOARDS The switching of series arc light circuits is a prob-lem altogether different from any other. At the pres-ent time, very few new systems of this… … o] [o •D <W vQ# Figure 138 are two horizontal rows of holes, one at the right andone at the left for each machine. There are also twovertical bars containing holes for each circuit on theboard. The board may be built for any number ofcircuits or machines. The lower row of holes is extraand is…
Electrical engineering · Electric testing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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