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| Keywords: Power racket1.jpg optical fiber cable runs on poles to facilitate maintenance Splicing optical fiber is a precision operation that can't be done on the pole itself only on the ground Therefore the installation crew leaves several hundred spare feet of fiber in cable runs next to junction boxes enough so the junction box can be removed from the pole and brought to ground level for servicing The extra cable is wound in several hairpin loops on a pair of reels like this separated by 50 feet or so Optical fiber lines like this are usually used to distribute cable television signals or less often to carry internet lines or telephone trunklines own myself 2009-08-01 Electricity Power lines in the United States | ||||
