. American telephone practice . ttQJ- FIG. 579.—IRON-WIRE TIE. (usually potheads) being used for connecting the cable wire withthe bare wires. This construction is shown in the upper right-handcorner of Fig. 576. The same method has been used in taking off a branch lead from a. FIG. 580.—HELVIN TIE. main lead. This is shown in the upper left-hand corner of The use of cable for corner and branch work frequently savesmuch complexity in difficult places, leaving the work much moreopen and clean.

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