Karolo ea Li-antioxidants ho Ntlafatseng Bophelo ba Likhoele tse Insulated tsa Polyethylene (XLPE) tse Amanang le Tšepe
Polyethylene e hokahaneng ka sefapano (XLPE)ke thepa ea mantlha ea ho thibela mocheso e sebelisoang likhoeleng tse mahareng le tse nang le motlakase o phahameng. Bophelong bohle ba tsona ba ts'ebetso, likhoele tsena li tobana le liphephetso tse fapaneng, ho kenyeletsoa maemo a leholimo a fapaneng, ho feto-fetoha ha mocheso, khatello ea mechini le tšebelisano-'moho ea lik'hemik'hale. Lintho tsena kaofela li susumetsa ho tšoarella le ho phela nako e telele ha likhoele.
Bohlokoa ba Li-antioxidants ho Litsamaiso tsa XLPE
Ho netefatsa bophelo bo bolelele ba tšebeletso bakeng sa likhoele tse nang le insulation ea XLPE, ho khetha antioxidant e loketseng sistimi ea polyethylene ho bohlokoa. Li-antioxidant li bapala karolo ea bohlokoa ho sireletseng polyethylene khahlanong le ho senyeha ha oxidative. Ka ho arabela ka potlako ka li-free radical tse hlahisoang ka har'a thepa, li-antioxidants li theha metsoako e tsitsitseng haholoanyane, joalo ka hydroperoxides. Sena se bohlokoa haholo hobane boholo ba lits'ebetso tsa ho hokahanya XLPE li thehiloe ho peroxide.
Mokhoa oa ho Senyeha ha Li-polymer
Ha nako e ntse e ea, boholo ba li-polymer bo fetoha bo pshatlehang butle-butle ka lebaka la ho senyeha ho tsoelang pele. Hangata pheletso ea bophelo ba li-polymer e hlalosoa e le ntlha eo ho lelefala ha tsona ha li robeha ho fokotsehang ho fihlela ho 50% ea boleng ba pele. Ka nģ'ane ho moeli ona, esita le ho kobeha hanyane ha thapo ho ka lebisa ho petsoheng le ho hloleheng. Maemo a machaba hangata a sebelisa mokhoa ona bakeng sa li-polyolefin, ho kenyeletsoa le li-polyolefin tse hokahaneng, ho lekola ts'ebetso ea thepa.
Mohlala oa Arrhenius bakeng sa ho Bolela Pele Bophelo ba Cable
Kamano pakeng tsa mocheso le nako ea bophelo ea cable e hlalosoa hangata ho sebelisoa equation ea Arrhenius. Mohlala ona oa lipalo o hlalosa sekhahla sa karabelo ea lik'hemik'hale ka tsela e latelang:
K= D e(-Ea/RT)
Moo:
K: Sekhahla se itseng sa karabelo
D: Kamehla
Ea: Matla a ho kenya tshebetsong
R: Phetoho ea khase ea Boltzmann (8.617 x 10-5 eV/K)
T: Thempereichara e felletseng ho Kelvin (273+ Thempereichara ka °C)
Ha e hlophisitsoe bocha ka aljebra, equation e ka hlalosoa e le sebopeho se otlolohileng: y = mx+b
Ho tsoa ho equation ena, matla a ho kenya tshebetsong (Ea) a ka nkuwa ka ho sebedisa data ya ditshwantsho, e leng se nolofalletsang diponelopele tse nepahetseng tsa bophelo ba thapo tlasa maemo a fapaneng.
Liteko tsa Botsofali bo Potlakileng
Ho fumana hore na dikheibole tse kentsweng ka hare ho XLPE di phela nako e kae, disampole tsa teko di lokela ho etswa diteko tse potlakileng tsa botsofadi bonyane mochesong o fapaneng o tharo (haholoholo o nne). Dithempereichara tsena di lokela ho nka sebaka se lekaneng ho theha kamano e otlolohileng pakeng tsa ho hloleha ha nako le mocheso. Haholo-holo, mocheso o tlase wa ho pepesehela o lokela ho fella ka bonyane dihora tse 5,000 ho netefatsa bonnete ba data ya teko.
Ka ho sebelisa mokhoa ona o thata le ho khetha li-antioxidants tse sebetsang hantle, ts'epo ea ts'ebetso le nako e telele ea likhoele tse nang le insulation ea XLPE li ka ntlafatsoa haholo.
Nako ea poso: Pherekhong-23-2025