Wiring diagrams of electrical apparatus and installations (1913)
McGraw-Hill · New York, McGraw-Hill Book Company · leaf 190
^T^ M ^^ n Gh^ ^ r-^ Fig. 282. Fig. 283. Fig. 282.—Multi-gap lightning arresters with graded shunt resistance connected for opera-tion on a 3300-volt ungrounded star or delta system. Fig. 283.—Multi-gap lightning arresters with graded shunt resistance for operation onstar connected systems with… … ^V#
Electric wiring
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