Cable e sireletsang e na le mantsoe a mabeli a sireletsang, joalo ka ha lebitso le fana ka maikutlo a hore ke thapo ea phetisetso e nang le khanyetso ea tšitiso ea motlakase e kantle e entsoeng ke lesela le sireletsang. Seo ho thoeng ke "ts'ireletso" mohahong oa cable e boetse ke tekanyo ea ho ntlafatsa kabo ea masimo a motlakase. Mokhanni oa mohala o entsoe ka likhoele tse ngata tsa terata, e leng bonolo ho theha lekhalo la moea pakeng tsa eona le lera la ho kenya letsoho, 'me sebaka sa conductor ha se boreleli, se tla etsa hore ho be le mahloriso a tšimo ea motlakase.
1. Lera le sireletsang cable
(1). Eketsa lera le sireletsang la thepa ea semi-conductive holim'a mokhanni, e leng equipotential le conductor e sirelelitsoeng le ho kopana hantle le lera la ho kenya letsoho, e le ho qoba ho tsoa ka mokhoa o sa fellang pakeng tsa mokhanni le lera la ho pata. Lera lena la tšireletso le boetse le tsejoa e le lera le sireletsang ka hare. Ho ka 'na ha boela ha e-ba le likheo pakeng tsa sepakapaka le sheath,' me ha thapo e kobehile, bokaholimo ba thapo ea oli ea pampiri e bonolo ho baka mapetsong, e leng lintlha tse bakang ho tsoa ka mokhoa o itseng.
(2). Eketsa lera le sireletsang la thepa ea semi-conductive holim'a lera la ho kenya letsoho, le nang le kamano e ntle le lera le sirelelitsoeng le nang le bokhoni bo lekanang le sheath ea tšepe, e le ho qoba ho tsoa ka mokhoa o sa fellang pakeng tsa lera la ho kenya letsoho le sheath.
Bakeng sa ho tsamaisa mantlha ka mokhoa o ts'oanang le ho koala lebala la motlakase, lithapo tsa motlakase tsa 6kV le kaholimo ho matla a mahareng le a phahameng hangata li na le lera la thebe ea conductor le lera la thebe e sireletsang, 'me likhoele tse ling tsa motlakase o tlase ha li na lera la thebe. Ho na le mefuta e 'meli ea likarolo tse sireletsang: semi-conductive shielding le tšepe e sireletsang.
2. Cable e sirelelitsoeng
Lera le sireletsang la mohala ona hangata le khabisitsoe ka marang-rang a lithapo tsa tšepe kapa filimi ea tšepe, 'me ho na le mekhoa e sa tšoaneng ea ho sireletsa motho a le mong le ho sireletsa ka makhetlo a mangata. Thebe e le 'ngoe e bolela letlooa le le leng la thebe kapa filimi ea thebe, e ka phuthelang mohala o le mong kapa ho feta. Mokhoa oa ho sireletsa mekhoa e mengata ke bongata ba marang-rang a sireletsang, 'me filimi e sireletsang e le cable e le' ngoe. Tse ling li sebelisetsoa ho arola tšitiso ea motlakase lipakeng tsa lithapo, 'me tse ling ke tšireletso e habeli e sebelisetsoang ho matlafatsa ts'ireletso. Mokhoa oa ho sireletsa ke ho theola lera le sireletsang ho arola motlakase oa tšitiso ea terata e kantle.
(1) Semi-conductive shielding
Semi-conductive thebe lera hangata hlophisitsoe ka holim'a bokantle ba terata conductive konokono le bokaholimo ka ntle ea lera insulating, tse bitsoang ka hare semi-conductive thebe lera le ka ntle semi-conductive thebe lera ka ho latellana. Lera la tšireletso la semi-conductive le entsoe ka thepa ea semi-conductive e nang le resistivity e tlaase haholo le botenya bo tšesaane. Lera le ka hare la semi-conductive shielding le etselitsoe ho ts'oara lebala la motlakase holim'a bokantle bo ka ntle ba mokhanni oa motlakase le ho qoba ho tsoa ka mokhoa o sa lekanyetsoang oa mokhanni le ho kenya letsoho ka lebaka la sebaka se sa lekanyetsoang sa mokhanni le lekhalo la moea le bakoang ke mokokotlo o koetsoeng. Lera le ka ntle la semi-conductive shielding le kopane hantle le bokaholimo bo ka ntle ba lera la ho kenya letsoho, 'me le lekana le sheath ea tšepe ho qoba ho tsoa ka sekhahla ka tšepe ea tšepe ka lebaka la liphoso tse kang mapetsong a holim'a sepakapaka sa cable.
(2) Tšireletso ea tšepe
Bakeng sa likhoele tsa motlakase tse mahareng le tse tlase ntle le lijakete tsa tšepe, lera la thebe ea tšepe le lokela ho eketsoa ho kenyelletsa lera la thebe la semi-conductive. Lera la tšireletso ea tšepe hangata le phuthetsoe ketepi ea koporokapa terata ea koporo, eo haholo-holo e phethang karolo ea ho sireletsa tšimo ea motlakase.
Hobane hona joale ka thapo ea matla e batla e le khōlō, matla a khoheli a tla hlahisoa ho pota-pota hona joale, e le hore a se ke a ama likarolo tse ling, kahoo lesela le sireletsang le ka sireletsa tšimo ena ea motlakase ka mohala. Ho phaella moo, lera le sireletsang cable le ka phetha karolo e itseng ho sireletsa fatše. Haeba mokokotlo oa cable o senyehile, motlakase o lutlang o ka phalla haufi le phallo ea laminar e sireletsang, joalo ka marang-rang a fatše, ho phetha karolo ea tšireletso ea tšireletso. Ho ka bonoa hore karolo ea lera la thebe ea cable e ntse e le kholo haholo.
Nako ea poso: Sep-19-2024