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A ladder tray has the cables supported by a traverse bar, similarly to the rungs of a ladder, at regular intervals on the order of 4 to 12 inches (100 to 300 mm). Ladder and ventilated trays may have solid covers to protect cables from falling objects, dust, and water.
The B-Line is a railroad line owned and operated by the Norfolk Southern Railway in the U.S. state of Virginia. The line runs from Manassas west to Front Royal and Strasburg [1] along a former Southern Railway line, although no trains serve the section of the line from Front Royal to Strasburg, as the last customer closed its doors in 2020 ...
Twin lead cable is a two-conductor flat cable used as a balanced transmission line to carry radio frequency (RF) signals. It is constructed of two, stranded copper wires, or solid copper-clad steel wires. The wires are held a fixed distance apart by a plastic ribbon that is a good insulator at radio frequencies (usually polyethylene).
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Ladder track. Ladder track is a type of railway track in which the track is laid on longitudinal supports with transverse connectors holding the two rails at the correct gauge distance. Modern ladder track can be considered a development of baulk road, which supported rails on longitudinal wooden sleepers. Synonyms include longitudinal beam track.
B. The B Line, also known as the Northwest Rail Line during construction, is a commuter rail line which is part of the commuter and light rail system operated by the Regional Transportation District in the Denver metropolitan area in Colorado. [2] Part of the FasTracks project, the first 6.2-mile (10 km) section from downtown Denver to south ...
Fixed ladders consist of the following components: Rungs: all fixed ladders have rungs, dictated by OSHA Standard 1910.27(b)(1) of no more than 12" (300 mm) on center (measured as the distance from the centerline of a rung to the center line of the next rung), and at 16" (410 mm) clear width.
The B Line (formerly the Red Line from 1993–2020) is a fully underground 14.7 mi (23.7 km) [1] rapid transit line operating in Los Angeles, running between North Hollywood and Downtown Los Angeles. It is one of six lines in the Los Angeles Metro Rail system, operated by the Los Angeles County Metropolitan Transportation Authority .
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