當線(xian)(xian)路的電(dian)(dian)(dian)壓(ya)超(chao)過220kv時,為了(le)降低線(xian)(xian)路電(dian)(dian)(dian)抗和電(dian)(dian)(dian)暈損(sun)耗,通常(chang)采用擴(kuo)徑導(dao)(dao)線(xian)(xian)或分(fen)裂導(dao)(dao)線(xian)(xian),擴(kuo)徑導(dao)(dao)線(xian)(xian)和分(fen)裂導(dao)(dao)線(xian)(xian)的區別是(shi):分(fen)裂導(dao)(dao)線(xian)(xian)是(shi)將每(mei)相導(dao)(dao)線(xian)(xian)分(fen)為若(ruo)干根子導(dao)(dao)線(xian)(xian),每(mei)根之間保持一定距離(一般為400mm)這(zhe)樣可(ke)以使導(dao)(dao)線(xian)(xian)的等效半徑增(zeng)大(da),從而檢點線(xian)(xian)路的電(dian)(dian)(dian)抗...
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