. Bell telephone magazine . Cable laying techniques vary from the relatively easy going along Floridas Sunshine State Parkway and rich farm land to the rockyterrain of the northeast. Work crews can normally lay two to three miles of cable per day when not faced with unusual soil conditions. 24. Two-man splicing teams join together the 104 wires and 20 copper tubes of the cable. An average of four splices per mile are neededand are then covered over with a 44-inch lead sheath. Splicing is done in open pits or precast manholes that also hold repeaters. 25


Size: 1635px × 1529px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookauthoramerican, bookcentury1900, bookdecade1920, bookyear1922