當線(xian)(xian)(xian)(xian)路(lu)的電(dian)壓超過220kv時,為(wei)了降低線(xian)(xian)(xian)(xian)路(lu)電(dian)抗(kang)和電(dian)暈損耗,通常(chang)采用擴(kuo)徑導(dao)線(xian)(xian)(xian)(xian)或分裂(lie)(lie)導(dao)線(xian)(xian)(xian)(xian),擴(kuo)徑導(dao)線(xian)(xian)(xian)(xian)和分裂(lie)(lie)導(dao)線(xian)(xian)(xian)(xian)的區別(bie)是:分裂(lie)(lie)導(dao)線(xian)(xian)(xian)(xian)是將(jiang)每相(xiang)導(dao)線(xian)(xian)(xian)(xian)分為(wei)若干(gan)根子(zi)導(dao)線(xian)(xian)(xian)(xian),每根之間保持一定距離(一般為(wei)400mm)這樣可以使導(dao)線(xian)(xian)(xian)(xian)的等效半徑增(zeng)大,從而檢點線(xian)(xian)(xian)(xian)路(lu)的電(dian)抗(kang)...
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