Makondukita etambo imhangura nealuminium.Aluminium alloy uye copper-clad aluminium yakatorwa kubva kualuminium, iyo yekutanga waya uye tambo maconductor emhangura, nekuti ayo emagetsi conduction uye ma mechanical properties akanakira, 20℃ DC resistivity is 1.72×10ˉ 6Ω ˙cm.
China kubva kuma1950, nekuda kweHondo yeKorea, nekuti mhangura chinhu chakakosha chehurongwa uye chakavharirwa nenyika dze capitalist.Vanhu vekuChina vachiri kurangarira chido chekuda nyika chekudavidza kurudziro rwekupa zvinhu zvavo zvebhuronzi kunyika.Panguva imwecheteyo, "aluminium pachinzvimbo chemhangura" mumativi ese ehupenyu, nearuminiyamu waya uye tambo seyambiro yehunyanzvi yekushandisa.Mune dzimwe nzvimbo uko kuchengeteka uye kuvimbika kusina kunyanya kuoma, aluminium core waya uye tambo dzinoshandiswa, kunyange muzvivako zvitsva zvekugara - nzvimbo dzinofanira kuva nehanya nezvekuchengeteka dzinogona kugadziriswa chete.Nekuti aruminiyamu yakaderera kune mhangura mune zvese zvemagetsi uye zvemichina.Iyo DC resistivity pa20 ℃ ndeye 2.82 × 10ˉ 6Ω ˙cm, ingangoita 1.64 nguva yemhangura.Iyo brittleness inoita kuti mubatanidzwa uve nyore kuputsika, uye nekuda kwehunhu hwekukambaira, kuvimbika kwemubatanidzwa kunoderedzwa.Iyo inonzi inokambaira ndiyo thermoplastic deformation iyo inowedzera nenguva iri pasi pekushisa kwepamusoro (se70 ° C) uye kudzvinyirira kukuru (sekumanikidza kwebhaudhi).Ndicho chikonzero chikuru chekuvimbika kuderedzwa uye kunyange kukuvara kwewaya uye majoini etambo.Mushure mekuongorora kwenguva refu, zvimwe zvipingamupinyi zvakawanikwawo, zvakadai sekusimbisa kuongorora uye kugara uchisimbisa kusimbisa mabhoti.
Ehe, zvinhu zvinogara zvine mativi maviri, nekuti aruminiyamu kondakita waya uye mutengo wetambo yakaderera, uremu huremu, inoderedza zvakanyanya basa rekuvaka uye inogamuchirwa.
Kunguva yekuvandudza uye yekuvhura, kukurumidza kusimudzira hupfumi, hunhu hwevanhu hunodiwa kuti huvandudze, kubvisa zvimwe zvipingamupinyi, mhedzisiro kubva kune imwe yakanyanyisa kusvika kune imwe yakanyanyisa, kumaodzanyemba kwakadziva kumabvazuva kwemahombekombe kutungamira mukusiya "aluminium pachinzvimbo che mhangura”, waya netambo dzinenge dzese dzinoshandisa maconductor emhangura, kudzika nekufara kusati kwamboitika.Iyo yakadzika - chiyero chemhangura uye aluminium conductors inopfuura iyo yenyika dzakabudirira, uye hupamhi - zvishoma nezvishoma inowedzera kubva kumhenderekedzo yekumaodzanyemba kwakadziva kumabvazuva kusvika mukati.
Kusimukira kwezvinhu kwaenda kure, sezvo mutengo wemhangura wakakwira zvekuti mutengo wewaya netambo wawedzera zvakapetwa kaviri, vanhu vofunga patsva.Panguva imwecheteyo, madutu madiki maviri, imwe ndeyekubuda kwemhangura-yakapfeka aluminium tambo, uye imwe yacho kuiswa kwealuminium alloy conductor cable tekinoroji kubva kuNorth America.Aluminium alloy cable yakatanga kuve muChina.
Makombora-akapfeka aluminium cables anonzi anotsiva tambo dzemhangura.Asi chaizvoizvo iyo yakakodzera chete kune zviduku zviduku zvemuchinjikwa uye zve-high-frequency madivayiri, nekuda kwekuita kweganda re-high-frequency current, copper-clad aluminium wire inogona kutamba zvakanakira.Zviyero zvemumba nekunze zvinongogumira kumidziyo yemagetsi.Mhangura yakapfeka aluminium waya haigone kushandiswa kugadzira tambo dzemagetsi, kune rumwe rutivi, inongoshanda kune imwe tambo, kushandiswa kwetambo dzakawanda dzezvinoreva zvakarasika, kune rumwe rutivi, iyo yakabatana tekinoroji haigone kugadziriswa, saka chamupupuri chakabva chadzikama.
Aluminium alloy conductors ialuminium yemagetsi ine trace uwandu hwesilicon, mhangura, zingi, iron, boron nezvimwe zvinhu.Mechanical zvivakwa zvakagadziridzwa zvakanyanya, senge flexibility 靱 optimization, creep resistance yakagadziridzwa zvakanyanya.Iko iyo nzira yeannealing yakanaka, maitiro ayo emagetsi anogona kunge ari padyo nearuminiyamu yemagetsi."Conductor wetambo" National standard GB/T3956-2008 inotora kupikisa kwealuminium uye aruminiyamu alloy conductors kune imwechete kukosha.
Imwe yeakakosha matekinoroji ealuminium alloy tambo ndiyo yakabatana.Izvo zvinhu uye maitiro emubatanidzwa zvinhu zvakakosha zvinokanganisa kunaka, uye mabhizinesi ekugadzira tambo anosuma tekinoroji anopa mabasa ehunyanzvi mukuwedzera kune kutengesa tambo.Kana iyo yakabatana ichizovimbika, mutengesi anofanira kugadza nyanzvi yekutungamirira kuvaka.Naizvozvo, mutengo wayo wakakwira zvakanyanya kupfuura wearuminiyamu tambo.Nekuda kwemahombekombe makuru epurofiti, vagadziri kubva pakutanga kweviri, kamwe kamwe vakakwira kusvika kune anopfuura zana, chamupupuri chidiki chiri kuwedzera.Nekuti mabhizinesi emazuva ano anogadzirwa zvinoenderana neawo ebhizinesi zviyero, zvinoita kunge zvakafanana, asi mhando yacho yakasiyana zvakanyanya.
Ndeipi kurasikirwa kukuru kwemhangura nealuminium alloy cables?Maonero anosiyana.Pano, iyo data inotaura yega.
Iyo yekuverenga formula yekurasikirwa kwetambo ndeye:
△P=Ι2˙Rθj˙L˙NC˙NP×10ˉ³ (1)
△Q=△P˙ζ (2)
Kupi: △P - Kupera simba, kW
△Q - Kushandiswa kwesimba, kWh
Rθj - AC kuramba pahurefu hweyuniti imwe chete conductor accounting yeganda uye pedo nemhedzisiro patembiricha θ, Ω/km.
Ι – Verenga zvazvino, A
NC, NP - Huwandu hwemakondakita pa loop uye nhamba yemasekete
ζ - Yakanyanya kurasikirwa maawa, h/ gore
L – Hurefu hwemutsara, km
Nguva yekutumira: Feb-28-2024