. American telephone practice . FIG. 577.—HAND BARROW,r being more flexible, more easily handled, and, at the same time,stronger for its weight than the single strands of larger wire. Thecable usually consists of seven Xo. 12 steel wires laid up with a 3-J-inch twist. In turning a sharp corner it is better to use two poles. Fig. 576shows several styles of double-pole corners, and also a method oftaking off branch leads that is sometimes, but seldom, used. Oncorner work the poles should be heavier than the standard used,. ■- --rT-iiK-rTiaj FIG. 578.—COME-ALONG. and should be guyed in a manner t
. American telephone practice . FIG. 577.—HAND BARROW,r being more flexible, more easily handled, and, at the same time,stronger for its weight than the single strands of larger wire. Thecable usually consists of seven Xo. 12 steel wires laid up with a 3-J-inch twist. In turning a sharp corner it is better to use two poles. Fig. 576shows several styles of double-pole corners, and also a method oftaking off branch leads that is sometimes, but seldom, used. Oncorner work the poles should be heavier than the standard used,. ■- --rT-iiK-rTiaj FIG. 578.—COME-ALONG. and should be guyed in a manner that will effectually brace them inall directions. The large cut in Fig. 576 shows the best methodof guying, but the method shown in the lower left-hand corner maybe used where there is room for only one guy stub and anchor. Sometimes instead of leading the bare wires around the bend,they are dead-ended on the corner poles in the same manner as at POLE LINE CONSTRUCTION. 797 the end of a lead, and then connection made between the two leadsby means of a lead-covered or rubber cable, suitable cable terminals
Size: 2875px × 869px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1900, bookdecade1900, bookidamericantelepho00mill
