Hona joale, e sebelisoang haholothepa ea ho thibela mochesobakeng sa dithapo tsa DC ke polyethylene. Leha ho le jwalo, bafuputsi ba ntse ba batla disebediswa tse ngata tse ka bang teng tsa ho kwahela, tse kang polypropylene (PP). Leha ho le jwalo, ho sebedisa PP e le thepa ya ho kwahela dithapo ho hlahisa mathata a mmalwa.
1. Thepa ea Mekaniki
Ho fihlela litlhoko tsa motheo bakeng sa ho tsamaisa, ho kenya le ho sebetsa ha likhoele tsa DC, thepa ea ho thibela mocheso e tlameha ho ba le matla a itseng a mechini, ho kenyeletsoa le ho tenyetseha ho hotle, ho lelefala ha ho robeha, le ho hanyetsa tšusumetso mochesong o tlase. Leha ho le joalo, PP, joalo ka polymer e nang le kristale e ngata, e bontša ho tiea ka har'a mocheso oa eona o sebetsang. Ho feta moo, e bontša ho robeha le ho ba kotsing ea ho petsoha libakeng tse nang le mocheso o tlase, e hloleha ho fihlela maemo ana. Ka hona, lipatlisiso li tlameha ho tsepamisa maikutlo ho tiiseng le ho fetola PP ho rarolla mathata ana.
2. Khanyetso ea Botsofali
Nakong ea tšebeliso ea nako e telele, ho thibela likhoele tsa DC ho tsofala butle-butle ka lebaka la litlamorao tse kopaneng tsa matla a matla a motlakase le potoloho ea mocheso. Botsofali bona bo lebisa phokotsong ea thepa ea mechini le ea ho thibela, hammoho le phokotso ea matla a ho robeha, qetellong e amang ts'epo le bophelo ba ts'ebeletso ea cable. Botsofali ba ho thibela likhoele tsa cable bo kenyelletsa likarolo tsa mechini, motlakase, mocheso le lik'hemik'hale, 'me botsofali ba motlakase le mocheso e le bona bo tšoenyang haholo. Leha ho eketsa li-antioxidants ho ka ntlafatsa khanyetso ea PP ho botsofali ba oxidative ba mocheso ho isa bohōleng bo itseng, ho se lumellane hantle pakeng tsa li-antioxidants le PP, ho falla, le ho se hloeke ha tsona e le litlatsetso ho ama ts'ebetso ea ho thibela likhoele tsa PP. Ka hona, ho itšetleha feela ka li-antioxidants ho ntlafatsa khanyetso ea botsofali ea PP ho ke ke ha fihlela litlhoko tsa bophelo le ts'epo tsa ho thibela likhoele tsa DC, ho hloka lipatlisiso tse ling mabapi le ho fetola PP.
3. Tshebetso ea ho kenya mocheso
Tefiso ea sebaka, e le e 'ngoe ea lintlha tse susumetsang boleng le nako ea bophelo balikhoele tsa DC tse nang le motlakase o phahameng, e ama kabo ea tšimo ea motlakase ea lehae, matla a dielectric, le botsofali ba thepa ea insulation haholo. Lisebelisoa tsa insulation bakeng sa likhoele tsa DC li hloka ho thibela ho bokellana ha tjhaja ea sebaka, ho fokotsa ho kenngoa ha litefiso tsa sebaka se tšoanang le polarity, le ho sitisa tlhahiso ea litefiso tsa sebaka se sa tšoaneng le polarity ho thibela ho sotha ha tšimo ea motlakase ka har'a insulation le li-interface, ho netefatsa matla a ho senyeha a sa ameheng le bophelo ba cable.
Ha dithapo tsa DC di dula tshimong ya motlakase ya unipolar ka nako e telele, dielektrone, di-ion le ionization ya ditshila tse hlahiswang thepa ya electrode ka hara insulation di fetoha ditjhaja tsa sebaka. Ditjhaja tsena di falla ka potlako mme di bokellana ka hara dipakete tsa ditjhaja, tse tsejwang e le pokello ya tjhaja ya sebaka. Ka hona, ha ho sebediswa PP dithapong tsa DC, diphetoho di a hlokahala ho thibela tlhahiso ya tjhaja le pokello.
4. Ho tsamaisa mocheso ka mocheso
Ka lebaka la ho se sebetse hantle ha mocheso, mocheso o hlahisoang nakong ea ts'ebetso ea likhoele tsa DC tse thehiloeng ho PP o ke ke oa nyamela kapele, e leng se fellang ka liphapang tsa mocheso lipakeng tsa mahlakore a ka hare le a ka ntle a lera la insulation, e leng se etsang hore ho be le sebaka se sa lekanang sa mocheso. Ho tsamaisa motlakase ha thepa ea polymer hoa eketseha ha mocheso o ntse o phahama. Ka hona, lehlakore le ka ntle la lera la insulation le nang le conductivity e tlase le sekamela ho bokellaneng ha chaja, e leng se lebisang ho fokotseng matla a tšimo ea motlakase. Ho feta moo, maemo a mocheso a baka ho kenngoa le ho falla ha palo e kholo ea litefiso tsa sebaka, e leng se sothang tšimo ea motlakase haholoanyane. Ha gradient ea mocheso e le kholoanyane, ho bokellana ha chaja ea sebaka ho etsahala, e leng se eketsang khohlano ea tšimo ea motlakase. Joalokaha ho boletsoe pejana, mocheso o phahameng, ho bokellana ha chaja ea sebaka, le khohlano ea tšimo ea motlakase li ama ts'ebetso e tloaelehileng le bophelo ba ts'ebeletso ba likhoele tsa DC. Kahoo, ho ntlafatsa conductivity ea mocheso ea PP hoa hlokahala ho netefatsa ts'ebetso e sireletsehileng le bophelo bo bolelele ba ts'ebeletso ba likhoele tsa DC.
Nako ea poso: Pherekhong-04-2024