Aerialcable Stock Photos and Images
. Bell telephone magazine . are available, and either may for maintenance and future additionsbe used—depending on the con- to the plant. ditions. Then comes the problem of de- Where aerial cable is involved, it tailed design of the aerial structureis, of course, necessaryto determine and spec-ify the size of support-ing strand for the vari-ous span lengths andunder the wind and iceloading likely to be en-countered. TOLL The engineeringproblems involved inthe construction of atoll aerial line or a tollunderground or aerialcable start with studiesof current requirementsand determination ofthe g Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/bell-telephone-magazine-are-available-and-either-may-for-maintenance-and-future-additionsbe-useddepending-on-the-con-to-the-plant-ditions-then-comes-the-problem-of-de-where-aerial-cable-is-involved-it-tailed-design-of-the-aerial-structureis-of-course-necessaryto-determine-and-spec-ify-the-size-of-support-ing-strand-for-the-vari-ous-span-lengths-andunder-the-wind-and-iceloading-likely-to-be-en-countered-toll-the-engineeringproblems-involved-inthe-construction-of-atoll-aerial-line-or-a-tollunderground-or-aerialcable-start-with-studiesof-current-requirementsand-determination-ofthe-g-image374588913.htmlRM2CNBYYD–. Bell telephone magazine . are available, and either may for maintenance and future additionsbe used—depending on the con- to the plant. ditions. Then comes the problem of de- Where aerial cable is involved, it tailed design of the aerial structureis, of course, necessaryto determine and spec-ify the size of support-ing strand for the vari-ous span lengths andunder the wind and iceloading likely to be en-countered. TOLL The engineeringproblems involved inthe construction of atoll aerial line or a tollunderground or aerialcable start with studiesof current requirementsand determination ofthe g
. The Bell System technical journal . ts. Lateral CablesAt each carrier repeater station four lateral cables were installedto bring the carrier pairs into the repeater building. One of thesewas required for each direction of transmission for each cable; that is,two input cables and two output cables were required. As a resultof the transposition of directions of transmission at each repeater point,the two input cables connect to one toll cable and the two outputcables to the other. Figure 4 shows these cables installed at an aerialcable repeater point. All lateral cables were installed for the Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/the-bell-system-technical-journal-ts-lateral-cablesat-each-carrier-repeater-station-four-lateral-cables-were-installedto-bring-the-carrier-pairs-into-the-repeater-building-one-of-thesewas-required-for-each-direction-of-transmission-for-each-cable-that-istwo-input-cables-and-two-output-cables-were-required-as-a-resultof-the-transposition-of-directions-of-transmission-at-each-repeater-pointthe-two-input-cables-connect-to-one-toll-cable-and-the-two-outputcables-to-the-other-figure-4-shows-these-cables-installed-at-an-aerialcable-repeater-point-all-lateral-cables-were-installed-for-the-image374597836.htmlRM2CNCBA4–. The Bell System technical journal . ts. Lateral CablesAt each carrier repeater station four lateral cables were installedto bring the carrier pairs into the repeater building. One of thesewas required for each direction of transmission for each cable; that is,two input cables and two output cables were required. As a resultof the transposition of directions of transmission at each repeater point,the two input cables connect to one toll cable and the two outputcables to the other. Figure 4 shows these cables installed at an aerialcable repeater point. All lateral cables were installed for the
. Electrical instruments and telephones of the U.S. Signal corps . first earthused for filling in are entirely free from stones, sticks, or other ma-terial which will injure the cable sheath under pressure. The cablemay be pulled into the completed trench from the reel, held on cablejacks. In pulling into trench, avoid drawing cable over sharp pro-jections which would score the sheath. The same precautions shouldbe employed in sealing ends, splicing, and potheading as for aerialcable. After the cable is laid and spliced it should be covered withrough boards about 1 by 6 inches of such timber a Stock Photohttps://www.alamy.com/image-license-details/?v=1https://www.alamy.com/electrical-instruments-and-telephones-of-the-us-signal-corps-first-earthused-for-filling-in-are-entirely-free-from-stones-sticks-or-other-ma-terial-which-will-injure-the-cable-sheath-under-pressure-the-cablemay-be-pulled-into-the-completed-trench-from-the-reel-held-on-cablejacks-in-pulling-into-trench-avoid-drawing-cable-over-sharp-pro-jections-which-would-score-the-sheath-the-same-precautions-shouldbe-employed-in-sealing-ends-splicing-and-potheading-as-for-aerialcable-after-the-cable-is-laid-and-spliced-it-should-be-covered-withrough-boards-about-1-by-6-inches-of-such-timber-a-image376107087.htmlRM2CRW4BY–. Electrical instruments and telephones of the U.S. Signal corps . first earthused for filling in are entirely free from stones, sticks, or other ma-terial which will injure the cable sheath under pressure. The cablemay be pulled into the completed trench from the reel, held on cablejacks. In pulling into trench, avoid drawing cable over sharp pro-jections which would score the sheath. The same precautions shouldbe employed in sealing ends, splicing, and potheading as for aerialcable. After the cable is laid and spliced it should be covered withrough boards about 1 by 6 inches of such timber a
