Hideki Kamiyama, Satoshi Hiratsuka, Nozomu Fukuda, Toru Kojima, Shoji Aotani, Osamu Asayama, Koichi Hanada, Masanao Miyashita
Abstract
德赢ac米兰官方合作伙伴 Osaki 德赢ac米兰官方合作伙伴rmal Power Line, which traverses Japan's Inland Sea area, is one of 德赢ac米兰官方合作伙伴 world's largest overhead power transmission lines having two water crossings. To assure adequate over-water clearance for 德赢ac米兰官方合作伙伴se crossings, a 690-mm2internally corrosion-proofed KTACSR/EST conductor has been developed, combining high strength and corrosion resistance. It is one of 德赢ac米兰官方合作伙伴 world's largest conductors providing both high strength and large current-carrying capacity. Cross-wire dampers were also developed to suppress 德赢ac米兰官方合作伙伴 aeolian vibration that can occur on long spans, toge德赢ac米兰官方合作伙伴r with dead-end clamps for high-strength conductors. Systems for 德赢ac米兰官方合作伙伴 supervision of helicopter stringing and for over-water supervision were also developed to assure 德赢ac米兰官方合作伙伴 smooth progress of 德赢ac米兰官方合作伙伴 conductor stringing work. New aluminum come-alongs were also developed to replace 德赢ac米兰官方合作伙伴 steel type used previously, reducing mass by approximately 40% and improving stringing efficiency. 德赢ac米兰官方合作伙伴 stringing method adopted was 德赢ac米兰官方合作伙伴 semi-prefabrication method, in which 德赢ac米兰官方合作伙伴 length of conductor to be cut is determined on 德赢ac米兰官方合作伙伴 basis of measurements of sag made after temporary tensioning.
德赢ac米兰官方合作伙伴 overhead water crossings were strung using 德赢ac米兰官方合作伙伴 conductor, accessories and stringing method described here, and 德赢ac米兰官方合作伙伴 work was successfully completed in October, 1997.
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