Sebopeho sa thapo se bonahala se le bonolo, ha e le hantle, karolo e 'ngoe le e 'ngoe ea eona e na le morero oa eona oa bohlokoa, kahoo thepa e 'ngoe le e 'ngoe ea karolo e tlameha ho khethoa ka hloko ha ho etsoa thapo, e le ho netefatsa hore thapo e entsoeng ka thepa ena ea tšepahala nakong ea ts'ebetso.
1. Thepa ea mokhanni
Ho tloha khale, thepa e neng e sebelisoa bakeng sa li-conductor tsa thapo ea motlakase e ne e le koporo le aluminium. Sodium le eona e ile ea lekoa ka nakoana. Koporo le aluminium li na le conductivity e betere ea motlakase, 'me palo ea koporo e batla e le nyane ha e fetisa motlakase o tšoanang, kahoo bophara ba kantle ba conductor ea koporo bo bonyenyane ho feta ba conductor ea aluminium. Theko ea aluminium e tlase haholo ho feta koporo. Ho feta moo, hobane boima ba koporo bo boholo ho feta ba aluminium, leha matla a hona joale a ho jara a tšoana, karolo e tšekaletseng ea conductor ea aluminium e kholo ho feta ea conductor ea koporo, empa cable ea conductor ea aluminium e ntse e le bobebe ho feta cable ea conductor ea koporo.
2. Lisebelisoa tsa ho thibela ho ruruha
Ho na le thepa e ngata ea ho thibela mocheso eo likhoele tsa motlakase tsa MV li ka e sebelisang, ho kenyeletsoa le thepa ea ho thibela mocheso ea pampiri e kenngoeng ka theknoloji e butsoitseng, e sebelisitsoeng ka katleho ka lilemo tse fetang 100. Kajeno, ho thibela mocheso ea polymer e ntšitsoeng ho se ho amohetsoe haholo. Lisebelisoa tsa ho thibela mocheso ea polymer e ntšitsoeng li kenyelletsa PE(LDPE le HDPE), XLPE, WTR-XLPE le EPR. Lisebelisoa tsena ke thermoplastic hammoho le thermosetting. Lisebelisoa tsa thermoplastic lia senyeha ha li futhumatsoa, ha thepa ea thermoset e boloka sebopeho sa eona mochesong oa ts'ebetso.
2.1. Ho thibela pampiri
Qalong ea ts'ebetso ea tsona, likhoele tse koahetsoeng ka pampiri li jara mojaro o monyane feela 'me li hlokomeloa hantle. Leha ho le joalo, basebelisi ba motlakase ba tsoela pele ho etsa hore thapo e jereng e be le mojaro o phahameng haholoanyane, maemo a pele a ts'ebeliso ha a sa loketse litlhoko tsa thapo ea hona joale, joale phihlelo e ntle ea pele e ke ke ea emela ts'ebetso ea nakong e tlang ea thapo e tlameha ho ba ntle. Lilemong tsa morao tjena, likhoele tse koahetsoeng ka pampiri li 'nile tsa sebelisoa ka seoelo.
2.2.PVC
PVC e ntse e sebelisoa e le thepa e sireletsang mocheso bakeng sa likhoele tsa 1kV tse nang le motlakase o tlase 'me hape ke thepa e sireletsang mocheso. Leha ho le joalo, ts'ebeliso ea PVC ho insulation ea cable e nkeloa sebaka ka potlako ke XLPE, 'me ts'ebeliso ka har'a sheath e nkeloa sebaka ka potlako ke linear low density polyethylene (LLDPE), medium density polyethylene (MDPE) kapa high density polyethylene (HDPE), 'me likhoele tse seng tsa PVC li na le litšenyehelo tse tlase tsa potoloho ea bophelo.
2.3. Polyethylene (PE)
Polyethylene e nang le tekanyo e tlase (LDPE) e ile ea hlahisoa lilemong tsa bo-1930 'me hona joale e sebelisoa e le resin ea motheo bakeng sa thepa ea polyethylene e kopantsoeng (XLPE) le polyethylene e kopantsoeng le lifate e sa keneleng metsi (WTR-XLPE). Boemong ba thermoplastic, mocheso o phahameng ka ho fetisisa oa ts'ebetso oa polyethylene ke 75 ° C, e leng mocheso o tlase ho feta mocheso oa ts'ebetso oa likhoele tse koahetsoeng ka pampiri (80~90 ° C). Bothata bona bo rarollotsoe ka ho hlaha ha polyethylene e kopantsoeng le sefapano (XLPE), e ka fihlelang kapa ea feta mocheso oa ts'ebeletso oa likhoele tse koahetsoeng ka pampiri.
2.4.Polyethylene e hokahaneng ka sefapano (XLPE)
XLPE ke thepa ea thermosetting e entsoeng ka ho kopanya polyethylene e nang le density e tlase (LDPE) le moemeli oa ho hokahanya (joalo ka peroxide).
Mocheso o moholo ka ho fetisisa oa ho sebetsa oa thapo e koahetsoeng ea XLPE ke 90 ° C, teko ea ho jara boima bo feteletseng e fihla ho 140 ° C, 'me mocheso oa potoloho e khuts'oane o ka fihla ho 250 ° C. XLPE e na le litšobotsi tse ntle tsa dielectric 'me e ka sebelisoa maemong a motlakase a 600V ho isa ho 500kV.
2.5. Sefate se hanelang metsi Polyethylene e hokahaneng le sefapano (WTR-XLPE)
Ketsahalo ea sefate sa metsi e tla fokotsa bophelo ba tšebeletso ea thapo ea XLPE. Ho na le litsela tse ngata tsa ho fokotsa kholo ea sefate sa metsi, empa e 'ngoe ea tse amoheloang haholo ke ho sebelisa thepa ea ho thibela mocheso e entsoeng ka boqhetseke e etselitsoeng ho thibela kholo ea sefate sa metsi, e bitsoang polyethylene WTR-XLPE ea sefate se sa keneleng metsi.
2.6. Rabara ea propylene ea ethylene (EPR)
EPR ke thepa ea thermosetting e entsoeng ka ethylene, propylene (ka linako tse ling e le monomer ea boraro), 'me copolymer ea li-monomer tse tharo e bitsoa rabara ea ethylene propylene diene (EPDM). Ho latela mocheso o pharaletseng, EPR e lula e le bonolo 'me e na le khanyetso e ntle ea corona. Leha ho le joalo, tahlehelo ea dielectric ea thepa ea EPR e phahame haholo ho feta ea XLPE le WTR-XLPE.
3. Ts'ebetso ea ho kenya mocheso ka har'a vulcanization
Mokhoa oa ho kopanya li-crosslinking o ikhetha ho polymer e sebelisoang. Tlhahiso ea li-crosslinking tsa li-crosslinking e qala ka polymer ea matrix ebe li-stabilizer le li-crosslinking lia eketsoa ho etsa motsoako. Mokhoa oa ho kopanya li-crosslinking o eketsa lintlha tse ling tsa khokahano sebopehong sa limolek'hule. Hang ha li kopantsoe, ketane ea limolek'hule tsa polymer e lula e tenyetseha, empa e ke ke ea khaoloa ka botlalo hore e be mokelikeli o qhibilihang.
4. Thepa ea ho sireletsa le ho sireletsa motlakase ka mokhanni
Lera la tšireletso le tsamaisang motlakase ka semi-conductive le ntšetsoa ka ntle holim'a conductor le insulation ho lekana tšimo ea motlakase le ho boloka tšimo ea motlakase ka har'a thapo e sireletsang motlakase. Thepa ena e na le sehlopha sa boenjiniere sa thepa e ntšo ea carbon ho nolofalletsa lera la tšireletso la thapo ho fihlela conductivity e tsitsitseng ka har'a sebaka se hlokahalang.
Nako ea poso: Mmesa-12-2024