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Analiz Poter' Moshchnosti Silovykh Kabeley
Analiz Poter' Moshchnosti Silovykh Kabeley

Analiz Poter' Moshchnosti Silovykh Kabeley

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Tekhnicheskiy progress v razlichnykh otraslyakh vyzval rost potrebnosti v kabel'noy produktsii s bolee vysokimi kharakteristikami i s naimen'shimi poteryami moshchnosti v silovykh kabelyakh, dlya etogo neobkhodimo provodit' spetsial'nye meropriyatiya po snizheniyu etikh poter', sozdavat' novye tipy kabel'nykh liniy. Dlya obespecheniya nadezhnoy raboty silovykh kabeley v nastoyashchee vremya v Rossii primenyaetsya sistema ispytaniy, pri kotoroy kabeli periodicheski podvergayutsya ispytaniyam postoyannym napryazheniem dostatochno vysokogo urovnya (v 4-6 raz prevyshayushchim nominal'noe napryazhenie). Odnako, primenitel'no k silovym kabelyam s izolyatsiey iz sshitogo polietilena ispytaniya povyshennym postoyannym napryazheniem ne tol'ko prakticheski bespolezny, tak kak sshityy polietilen obladaet vysokoy elektricheskoy prochnost'yu i malymi tokami utechki, no i okazyvayut negativnoe vozdeystvie na polietilenovuyu izolyatsiyu, formiruya v ney ob"emnye zaryady i razrushaya ee. V svyazi s etim voznikaet tak zhe neobkhodimost' v sovershenstvovanii metodov diagnostiki kabel'nykh liniy.
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