[Electric engineering.] . 62. Suppose that it is desired to shut down machine Band run circuits 1 and 2 in series on machine A. Insert § 19 ELECTRIC LIGHTING. 53 plugs at cb, d^, clf and d1 and remove plugs cK and de. Thisleaves two circuits and two machines in series. Short-circuit machine 2 by inserting a plug at c\. Then cut outmachine 2 by removing plugs di0 and •((* •e2/„# #«9 bg» *c9 %<h *c„ %h *V. • bg »c2 •liz •e2f*»„ •ffg.

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