Ulwakhiwo
Intambo edityanisiweyo ihlanganiswe ne-sheath yangaphandle, isikrweqe sesinyithi, i-sheath yangaphakathi, i-filler, i-copper shielding layer, i-semiconducting layer yangaphandle, i-insulating layer, i-semiconducting layer, i-conductor, ingundoqo yemali yentambo.Ngoko ke, luhlobo luni lwesakhiwo sekhebula esifuna ukuba luhlobo luni lwezinto eziphathekayo kunye neteknoloji yezixhobo zekhebula kunye nembalelwano yayo enye kunye nokuhambelana.
Umgaqo woyilo wentambo yentambo kufuneka uhlangabezane kwaye ufikelele kwiimfuno: yenza intambo iqhube ngokukhuselekileyo kuyo nayiphi na indawo yendalo.Ukuze kuphunyezwe oku, kuyimfuneko ukunikela ingqalelo kwizinto ezine eziphambili, ezizezi: (1) ukutywina, (2) ukugquma, (3) indawo yombane, (4) inkqubo nezinye izinto.Oku kwakhona ukusombulula iingxaki ezine ezibalulekileyo zentloko cable.
Itywiniwe
I-1) Ngenxa yokuba ezininzi iintambo zentambo zifakwe kwimigca yangaphandle yangaphandle, ngaphantsi komhlaba kunye nezinye iindawo.Ngoko ke, ukukhuselwa kwamanzi kunye nomswakama-umswakama kuye kwaba yinye yezitshixo zokuqinisekisa ukusebenza ngokukhuselekileyo kwamalungu ekhebula.Kwaye umsebenzi wayo wokutywina kunye neendlela kufuneka ziqwalaselwe.
Okwangoku, kukho iindlela ezimbini zokutywinwa:
1. enye yindlela yokubumba nge-asphalt okanye i-epoxy resin.Le ndlela inzima kwinkqubo, kunzima ukuyilawula, kwaye ayihambisani nokugcinwa.
2. Enye indlela entsha, ekungoku nje ikhethwayo ngabavelisi abaziingcali basekhaya nabangaphandle, kukusebenzisa ii-elastic sealants.Inkqubo ilula, ukusebenza kuthembekile, kwaye ukugcinwa kunye nokufakwa kukulungele.Ezi zibonelelo ezizodwa zikwayenza ibe yeyona nto isetyenziswayo.
Ukusebenzisa le ndlela entsha, into yokuqala ekufuneka uyiqwalasele kukusebenza kwe-sealant.Ngenxa yokuba umgangatho kunye nokusebenza kwe-sealant kuchaphazela ngokuthe ngqo ukusebenza kokutywinwa kwe-cable joint.Khetha iglue enokuthi idibanise nomphezulu womzimba wekhebula kunye nomphezulu wezinto ezincedisayo ngokuqinileyo.Ngexesha elifanayo, kubaluleke kakhulu ukukwazi ukuhlangabezana neglue engasetyenziselwa kwiindawo ezahlukeneyo zokutshintsha ukushisa.
2) Ngenxa yokuba izixhobo zekhebula zamandla ezibandayo ezibandayo zizincedisi zentambo ezilastiki.Oko kukuthi, i-elasticity yerubha ye-silicone elulwelo isetyenziselwa ukwandisa iplastiki kunye nemicu yenkxaso kumzi-mveliso kwangaphambili.Yimise kwindawo echongiweyo kwindawo, kwaye ukhuphe ibha yenkxaso ukuyicutha ngokwemvelo.Olu hlobo lobuchwephesha bubuchwephesha obubandayo bokucutheka, kwaye olu hlobo lwesincedisi luyinto ebandayo yokucutheka kwentambo.Ngoko ke, le ncedisi ebandayo eyanciphayo ine "elasticity" enhle.Iyakwazi ukuphepha ukwandiswa kwe-thermal kunye nokuchithwa kwekhebula ngenxa yendawo ye-atmospheric kunye nenqanaba lomthwalo ngexesha lokusebenza kwekhebula.Kukwaphuka kwengozi okubangelwa ngumsantsa phakathi kokhuselo oluveliswa “yintambo yokuphefumla”.I-disadvantage enkulu yezixhobo zokushisa ukushisa kukuba aziguquki.Ke ngoko, izixhobo ezibandayo ezibandayo zona zilungileyo zokusetyenziswa kwiindawo ezinomahluko omkhulu wobushushu kunye neempembelelo ezinkulu ngokusingqongileyo kwemozulu.
I-Insulation
Imfuno yokugquma kwentloko yekhebula kukuhlangabezana nemigangatho emibini ephambili ye-insulation phase-to-phase kunye nomhlaba ochaseneyo.
1. I-insulation of phase-to-phase yintlobo ezimbini zezinto zokugquma: uhlobo lwe-rubber ye-silicone kunye ne-heat-shrinkable material.Ngokuqhelekileyo, ukusebenza kwe-insulation kufuneka kuhlangabezane neemfuno ezisekelwe kwi-insulation index index yezinto ezidibeneyo kunye nobukhulu bezinto eziphathekayo.
2. I-insulation phakathi kwesigaba ukuya kumhlaba kukukhusela intlawulo ekukhuphukeni umgama okhuselekileyo ukusuka kumandla aphezulu ukuya kwimeko ephantsi.Imathiriyeli yerabha ye-silicone ebandayo eshwabeneyo ine-elasticity elungileyo.Ngethuba nje ukuyila kunengqiqo, ukuqina kwayo okunamandla kunokwaneleyo ukubamba amandla.Ubushushu bokuncipha kwentloko yentambo ecuthekayo yi-100℃-140℃, kwaye ubushushu bunokuhlangabezana neemeko zokushwabana kwayo kuphela xa ifakelwe.Xa ubushushu buphantsi, ngenxa yokuba i-coefficient yokwandiswa kwe-thermal yekhebula yahlukile kuleyo ye-heat-shrinkable material, kunokwenzeka ngokupheleleyo ukuba i-delamination iya kwenzeka kwindawo engaphantsi kwe-80 ℃, ngoko kuya kuvela iintanda.Ngale ndlela, amanzi kunye nomswakama uya kungena phantsi kwesenzo sokuphefumula, ngaloo ndlela kutshabalalisa ukufakwa kwenkqubo.Nangona kunjalo, xa iimeko zokusingqongileyo zitshintsha, akukho ukuqina okufana nerabha ye-silicone, ngoko kuya kuchaphazela ukhuseleko.Oku kukungalungi kwezinto ezinciphisa ukushisa.
Indawo yoMbane
Intsimi yombane ye-cold-shrinkable cable joints iphathwa ngendlela yejometri, etshintsha ukuhanjiswa kwentsimi yombane ngokusebenzisa i-cone yoxinzelelo.Isonjululwe ngobume bejometri ethile kunye ne-angle ye-R echanekileyo.Le ndlela ilula ukulawula nokuvavanya.Inokuqinisekiswa kwaye iqondwe kumzi-mveliso.Indlela yonyango yentsimi yombane yentloko yentambo yokushisa ishushu kukutshintsha ukuhanjiswa kwentsimi yombane ngendlela yeparameter yomgca.Kufuneka ithembele kwiiparitha ezimbini ezibalulekileyo: ukumelana nomthamo, i-108-11Ω, kunye ne-b dielectric constant ye-25. Ngenxa yenkqubo yayo yokuvelisa eyinkimbinkimbi kunye neenguqu ezinkulu ngenxa yezinto ezisingqongileyo, kunzima ukulawula ukuzinza kweeparamitha.Ngoko ke, iya kuba nefuthe kumgangatho wemveliso.
Ukukhetha eyona ntambo ilungileyo yokucinywa okanye iijoyinti zeprojekthi akufuneki kucingelwe.Ukupheliswa kwentambo yakho kungekudala kuya kuba yinxalenye ephambili yokusebenza kwakho.Awunakho ukuthenga inxalenye yeshishini elivaliweyo ngenxa yokulungiswa rhoqo okanye ukonakaliswa.Ukucutha okubandayo okufanelekileyo / ukucutha ubushushu iimveliso zokuphelisa intambo ziya konyusa imveliso yakho kwaye zenze umsebenzi ube lula kakhulu kubasebenzi.Qiniseka ukuba wenze uphando olufanelekileyo ukukhetha ukupheliswa kwentambo ephethe yonke imisebenzi yakho, ibonelela ngenkonzo ethembekileyo, kwaye abasebenzi bakho baqeqeshwe ngokufanelekileyo.
Ixesha lokuposa: Apr-07-2023
