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Lehae> Litaba> Lisebelisoa tsa motlakase tsa polasetiki ea polasetiki (1) ke eng?

Lisebelisoa tsa motlakase tsa polasetiki ea polasetiki (1) ke eng?

August 14, 2024
Lifotlolo, boholo ba tsona ke lisebelisoa tsa ho hlahloba (hangata tse buang ka lisebelisoa tsa ho tsitsa tse ka holimo ho 107 ohm-m, boitšoaro bo ka tlase ho 107 s / m). Lisebelisoa tsa polasetiki tsa polasetiki ke lisebelisoa tsa bohlokoa bakeng sa indasteri ea motlakase le ea elektroniki (Elecroc, E & E), e) konopo ea motlakase le ea ho ts'epahala. Lisebelisoa tsa polasetiki bakeng sa ts'ebeliso ea thepa ea mantlha li kenyelletsa thepa ea mantlha ea motlakase, thepa ea lik'hono, mona e kenyeletsa boleng ba moruo,. , Ho hanyetsa litsebi tsa motlakase ka motlakase, ho hanyetsanang le ARC ea motlakase, ho hanyetsa korona ea corona, ho hlaphoheloa ka nakoana le joalo.
Ts'ebetso ea lisebelisoa tsa ho batla tsa polasetiki tsa polasetiki, hangata re sebelisa thepa ea Diectric, ho lahleheloa ke mekhoa ea lefu la Dierictric, le litekanyetso tsa eona tse tsamaellanang (ρv, ρ. , Destactric Constrictric Constant (εr), Delactric Tangent Angorctring Tangent (Tan Δ) le matla a lijo (ej). Ka mantsoe a bonolo, thepa e sa lekanyetsoang ea polasetiki e felisang, e tefella, tahlehelo le karohano tšimong ea motlakase. Ka kakaretso, ho kenyelletsa ha karolo ea polasetiki ho kenyelletsa ho na le likhohlano le tlhahiso ea kahare. Kakaretso ea ka holimo haholo e kenyelletsa thepa e kang ho hanyetsa, ho hanyetsa matla a motlakase, ho lahleheloa ke lefu la motlakase, ho lahleheloa ke masela
1. Khopolo-taba ea ho ikhatholla le ho hana
Litaba tsa bohlokoa ke tse ling tsa liparame tsa bohlokoa ho khethollang thepa ea likhohlo, RV) le khanyetso ea molumo, e hanyetsanang. Litšoantšo tse phahameng (ρv) le tse sa lumellaneng (tse sa lumellaneng le r rs), ka ho latellana. Ho hanyetsa likarolo tse lumellanang feela ke ho hana (ρv) le ho e hana ho e hana (ρv (ρls), ka ho latellana. Ho tloha tlhalosong, ha ho na palo ea bophatlalatsi e behiloeng ka ho mofuta o mong le o mong oa motlakase oa DC ebe o fetisa li-elektrode tse peli tse matlafatsang Kakaretso ea yuniti; Ho e hana ha ho kenngoa ka mokhoa o hlakileng " Bohle ho hanyetsanang e 'ngoe ea mantsoe a mangata a motlakase a eketsang chelete e' meli ea li-elektrode tse peli tsa ho hana ha eona e matlafatsang. Ha e le hantle, thepa ea polasetiki ea polasetiki tšimong ea motlakase, le eona e tla ba e le nyane haholo ho feta ketsahalo ea hajoale e bitsoang ea hajoale (Leakage ea hona joale).
Maemo a mantlha a liteko tsa bophahamo le bophahamo ba lisebelisoa tsa polasetiki tsa polasetiki ke IT (ASTM D2593. Kameho ho ts'itiso ea pokello ea sekepe. Ho hanyetsa molumo oa bophahamo ba thepa e tloaelehileng ea polasetiki e pakeng tsa 107 ~ 1016 ω-M le ho e hana ha 'M le ho e hana ka makhetlo a 1010 ~ 1017 ω. Ka kakaretso, ho hanela lihlomo tsa morao-rao ho kholo ho feta tsa polymers tse kholo, empa ka lebaka la liphapang tsa nama, esita le liteko tsa lintho tse tšoanang li fapana haholo.
2. 2. Deectict Deass le Deals ea lijo
Ho lumellanoa ka mokhoa o amanang (hape ho lumellanoe ka molao, εr) ke khopolo ea tokollo lipakeng tsa li-electrode tsa motlakase ka botlalo ka lisebelisoa tsa ho lekola li-elektrone. Destactric Constrictric ke sehlahisoa sa Destactric Destactict Conserctic Pertersic. Diecticric Fingela (Δ), ke sekhutlo se sa feleng sa phapanyetsano ea mohato pakeng tsa voltage e sebelisoang joalo ka Diactrictric le ea hajoale. Tangent ea ho lahleheloa ke Diactric Angol (e tsejoang e le mokhoa oa ho fokotsa Dialectric, ho hlakoloa . Ka linako tsa Caalsman, mohloli oa liketso ke thepa ea polasetiki ke lintho tse qalang polasing ea motlakase, e leng tšimo ea motlakase e thata, e fokotsang matla a tšimo a motlakase oa sehlohlolong sa molao. Mohloli oa tahlehelo ea Litloaelo ke thepa ea polasetiki e ileng ea fetoloa tšimong ea motlakase, e nolofatsa matla a motlakase ebe o li koahela ka mocheso.
Lits'ebetso tsa polasetiki tsa "Ditlelete tsa" Ditlelete tsa Teko ea Teko " keketseho ea nako ea tšimo ea motlakase, ho fokotseha ha lierekisi, tahlehelo ea puo e ea eketseha. Lifokopo tse tloaelehileng tse seng tsa polar kapa tse ntle tse kang polyethyrene, polystetrane le tse ling tse hloekileng li le nyane haholo (10-8 ~- 4); Lipere tsa polasetiki, tse kang PVC, Resin Resis, Juslon, joalo-unc. Joalo ka ho hanyetsa, kamehla ho tahlehelo ea Diechine ea ho hlahloba polasetiki le eona e anngoeng ke sebopeho sa lintho tsa polasetiki, ts'ebetso ea ho etsa thepa le maemo a liteko.
3. Matla a Diectric
Teko ea Diectric (Ts'ebetso ea Diectric Teko ea ho senyeha e maemong a tiileng a Voltage, mohlala o hlaha ha Voltage ea Voltage ea Distage kapa Puntage (KV / limilimithara (MM / limilimithara). Tlhahlobo ea Voltage e hlomphuoa ke lintlafatso tsa Voltage, ka mohlala o hlakileng Boemong ba voltage, mohlala kaofela ha o hlahe kahare ho phallo. Ke ntho ea bohlokoa ho hlokomela hore, nakong ea tlhahlobo, ho na le monyetla oa ho phekolla thepa ea khase kapa metsi, e baka potoloho ea liteko.
Litekanyetso tsa mantlha tsa ho leka mokhoa oa ho hlahloba hore na lisebelisoa tsa polasetiki tsa polasetiki ke IEC143, ASTM D149, GB / T 140 Ho lokela ho bolela esale pele hore teko ea mekhoa ea lintho tse bonahalang e angoa ke ho ts'oaroa ha lithaelese le khafetsa (DC, Bokhulo le maemo a tikoloho. Metsi a tšoaeano ea mantsoe a tloaelehileng le maqephe a pokello ea boenjiniere tse fapaneng tsa boenjiniere
What are the electrical properties of plastic insulation
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