Electrical engineer's pocket-book: a hand-book of useful data for electricians and electrical engineers (1901)
Foster, Horatio A. (Horatio Alvah), 1858-1913 · New York, D. Van Nostrand co.; London, E.& F.N. Spon, ltd. · leaf 515
Fig. 55. Showing 9-inch Grooved Girder Rail double bondedwith two Bonds, one in each chamber and both on sameside of rail. Electrical connection of 425,000 cm. 502 ELECTRIC STREET RAILWAYS. … Fig. 56. Showing 9-inch Girder Rail quadruple bonded withfour Bonds, two in each chamber, on both sides of rail.Electrical connection of 850,000 cm. Another form of this type of bond is that shown in Fig. 57, as made by theForest City Electric Co. of Cleveland. ^TrY ^ Fig. 57. Still another form of…
Electrical engineering
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