Li-conductors tsa likhoele ke koporo le aluminium.Aluminium alloy le koporo-clad aluminium e nkiloeng ho aluminium, terata ea pele le mohala ke li-conductor tsa koporo, hobane motlakase oa eona oa motlakase le thepa ea mechine e loketse, 20℃ DC resistivity ke 1.72×10ˉ 6Ω ˙cm.
China ho tloha lilemong tsa bo-1950, ka lebaka la Ntoa ea Korea, hobane koporo ke thepa ea bohlokoa ea leano mme e ne e thibetsoe ke linaha tsa bo-capitalist.Batho ba Machaena ba ntse ba hopola cheseho ea ho rata naha ea ho arabela pitsong ea ho nehelana ka thepa ea bona ea boronse naheng eo.Ka nako e ts'oanang, "aluminium ho e-na le koporo" ho pholletsa le likarolo tsohle tsa bophelo, ka terata ea aluminium le mohala e le leano la theknoloji ho kenya ts'ebetsong.Libakeng tse ling moo polokeho le botšepehi li seng thata haholo, ho sebelisoa lithapo le likhoele tsa aluminium, esita le mehahong e mecha ea bolulo - libaka tse lokelang ho ameha ka polokeho li ka rarolloa feela.Hobane aluminium e ka tlaase ho koporo ka thepa ea motlakase le ea mechine.DC resistivity ho 20 ℃ ke 2.82 × 10ˉ 6Ω ˙cm, e ka bang makhetlo a 1.64 a koporo.brittleness ea eona e etsa hore lenonyeletso le be bonolo ho robeha, 'me ka lebaka la tšobotsi ea creep, ho tšepahala ha lenonyeletso ho fokotsehile.Seo ho thoeng ke creep ke deformation thermoplastic e ntseng e eketseha ka nako tlas'a mocheso o phahameng (joalo ka 70 ° C) le likhatello tse kholoanyane (joalo ka khatello ea bolt).Ke lona lebaka le ka sehloohong la ho fokotsa ho tšepahala esita le ho senyeha ha terata le li-cable joints.Ka mor'a lipatlisiso tsa nako e telele, ho boetse ho fumanoe mehato e meng ea ho loantša, e kang ho matlafatsa litlhahlobo le ho matlafatsa kamehla liboutu tse tiisang.
Ha e le hantle, lintho li lula li e-na le mahlakore a mabeli, hobane terata ea aluminium conductor le theko ea cable e tlaase, boima bo bobebe, e fokotsa haholo matla a mosebetsi oa kaho 'me e amoheloa.
Ho fihlela nako ea phetoho le ho bula, tsoelo-pele ea moruo e potlakileng, litlhoko tsa boleng ba batho ho ntlafatsa, ho tlosa litšitiso tse ling, phello ea ho tloha ho feteletseng ho ea ho e 'ngoe e feteletseng, lebōpong le ka boroa-bochabela ho etella pele ho tela "aluminium ho e-na le koporo”, terata le thapo hoo e ka bang tsohle li sebelisa li-conductor tsa koporo, botebo le bophara bo e-s’o ka bo e-ba teng.Botebo - karo-karolelano ea li-conductor tsa koporo le aluminium e feta ea linaha tse tsoetseng pele, 'me bophara - butle-butle bo atoloha ho tloha lebōpong le ka boroa-bochabela ho ea hare.
Tsoelopele ea lintho e tsamaile ka tsela e fapaneng, kaha theko ea koporo e nyolohile, hoo theko ea terata le cable e imenneng habeli, batho ba tlameha ho nahana bocha.Ka nako e ts'oanang, maholiotsoana a mabeli a manyenyane, e 'ngoe ke ho hlaha ha thapo ea aluminium e entsoeng ka koporo,' me e 'ngoe ke ho hlahisoa ha theknoloji ea aluminium alloy conductor cable e tsoang Amerika Leboea.Mohala oa aluminium alloy o ile oa hlaha Chaena.
Ho boleloa hore likhoele tsa aluminium tse entsoeng ka koporo li nkela mehala ea koporo sebaka.Empa ha e le hantle e loketse feela bakeng sa likaroloana tse nyenyane tsa sefapano le bakeng sa lisebelisoa tse phahameng, ka lebaka la phello ea letlalo la maqhubu a phahameng, mohala oa aluminium oa koporo o ka bapala melemo ea oona.Litekanyetso tsa lapeng le kantle ho naha le tsona li lekanyelitsoe ho lisebelisoa tsa elektronike.Copper clad aluminium terata e ke ke ea sebelisoa ho etsa likhoele tsa matla, ka lehlakoreng le leng, e sebetsa feela ho khoele e le 'ngoe, tšebeliso ea likhoele tse ngata tsa moelelo o lahlehileng, ka lehlakoreng le leng, theknoloji e kopanetsoeng e ke ke ea rarolloa, kahoo leholiotsoana kapele le ile la fetoha khatello e tlaase.
Aluminium alloy conductors ke aluminium ea motlakase e nang le silicon, koporo, zinki, tšepe, boron le likarolo tse ling.Thepa ea mochini e ntlafalitsoe haholo, joalo ka ho feto-fetoha ha maemo 靱 optimization, khanyetso ea creep e ntlafalitsoe haholo.Moo ts'ebetso ea annealing e ntle haholo, motlakase oa eona o ka ba haufi haholo le aluminium ea motlakase."Conductor of cable" National standard GB/T3956-2008 e nka khanyetso ea aluminium le aluminium alloy conductors ho boleng bo tšoanang.
E 'ngoe ea mahlale a bohlokoa a thapo ea aluminium alloy ke motsoako.Thepa le ts'ebetso ea kopanelo ke lintlha tsa bohlokoa tse amang boleng, 'me likhoebo tsa ho etsa li-cable tse hlahisang theknoloji li fana ka lits'ebeletso tsa tekheniki ntle le ho rekisa likhoele.Haeba lenonyeletso le lokela ho tšepahala, mofani oa thepa o tlameha ho khetha setsebi ho tataisa kaho.Ka hona, theko ea eona e phahame haholo ho feta ea cable ea aluminium.Ka lebaka la phaello e kholo ea phaello, bahlahisi ho tloha qalong ea tse peli, ka tšohanyetso ba nyolohetse ho feta 100, sefefo se senyenyane se ntse se atoloha.Hobane likhoebo tsa hajoale li hlahisoa ho latela maemo a tsona a likhoebo, li bonahala li tšoana, empa boleng bo fapane haholo.
Tahlehelo e kholo ka ho fetisisa ea likhoele tsa koporo le aluminium ke efe?Maikutlo aa fapana.Mona, data e ipuella.
Mokhoa oa ho bala oa tahlehelo ea cable ke:
△P=Ι2˙Rθj˙L˙NC˙NP×10ˉ³ (1)
△Q=△P˙ζ (2)
Moo: △P – Ho felloa ke matla, kW
△Q - Tšebeliso ea matla, kWh
Rθj - Khanyetso ea AC ka bolelele ba yuniti ea mokhanni a le mong ea ikarabellang bakeng sa letlalo le litlamorao tse haufi le mocheso θ, Ω/km
Ι - Bala hona joale, A
NC, NP - Palo ea li-conductor ka loop le palo ea lipotoloho
ζ - Lihora tse ngata tsa tahlehelo ea mojaro, h/ selemo
L – Bolelele ba mola, km
Nako ea poso: Feb-28-2024