Isakhiwo sentambo kunye nezinto ezibonakalayo zenkqubo yokwenziwa kwamandla yentambo.

Isakhiwo sentambo sibonakala silula, enyanisweni, inyani nganye ineenjongo zalo ezibalulekileyo, ngoko ke kufuneka ilungiselelwe intambo, ukuze iqinisekise ngentambo yentambo eyenziwe ngezi zixhobo ngexesha lokusebenza.

I-1. Izinto zokuqhutywa
Ngokwembali, izixhobo ezisetyenziselwa amandla abasebenzi bentambo yamandla yayingobhedu kunye ne-aluminium. I-sodium yazama ngokufutshane. Ubhedu kunye ne-aluminium zinemibane engcono yombane, kwaye inani lobhedu lincinci xa lidluliselwa okwangoku, ngoko ke ububanzi bangaphandle bomqhubi wobhedu buncinci kunelo yomqhubi weAluminiyam. Ixabiso le-aluminium lingaphantsi kakhulu kunobhedu. Ukongeza, kuba ukuxinana kobhedu kukhulu kune-aluminium, nokuba umthamo wokuphefumla okwenzekayo uyafana, inxenye yecandelo le-Aluminium inkulu ye-cable yoshicilelo isakhanya kune-Cable yobhedu.

2. Izixhobo zokukhupha
Zininzi izixhobo zokuthambisa iintambo ze-MV ze-MV, nangona ziquka itekhnoloji yeTekhnoloji evuthiweyo yephepha, esele isetyenziselwe ngaphezulu kweminyaka eli-100. Namhlanje, ukufuduswa kwe-polymer amkelwe ngokubanzi. Izixhobo ze-polymer ekhutshiweyo zibandakanya i-PE (ldpe kunye ne-HDPE), i-XDPE, WTR-XLPE kunye ne-EPRE. Ezi zixhobo zii-thermoplastic kunye ne-thermoset. Izixhobo zeTROPICES ZE-TROFAITITITION XA KUKHONA APHA XA KUQHUTYWA, XA IZIBHENGO ZE-PERMOMETOET zigcina ubushushu bazo kwiimvavanyo zokusebenza.

2.1. Iphepha lokufakelwa kwephepha
Ekuqaleni kokusebenza kwabo, iikhabhathi ze-inshurensi ye-inshurensi yephepha ziphethe umthwalo omncinci kwaye zigcinwe kakuhle. Nangona kunjalo, abasebenzisi bamandla bayaqhubeka nokwenza intambo ephethe umthwalo omkhulu nangaphezulu, iimeko zentsusa zokusetyenziswa azisabeki kwiimfuno zentambo yangoku, emva koko amava amnandi anokungafanelanga ukusebenza kwentambo. Kwiminyaka yakutshanje, iikopi zephepha eliqinisekisiweyo azifane zisetyenziswe.
2.2.I-pvc
I-PVC isasetyenziswa njengezixhobo zokufaka i-voltage ye-1KV kwaye ikwayinto ephilayo. Nangona kunjalo, ukusetyenziswa kwe-PVC kwi-Inble i-Ints ithathelwa indawo yi-XPE, kwaye isicelo se-sheath sitshintshwa ngu-Polythylene (i-Pldeium) okanye i-Polythylene (i-PDDE), kunye ne-PVCE ye-PVC inexabiso eliphantsi lobomi.
2.3. I-Polythylene (PE)
I-Polythylene (i-ldpe) yaphuhliswa nge-1930s kwaye ngoku isetyenziswa njengesiseko se-Polythylene (i-XLPE) kunye nomthi onganyangekiyo we-Polythylene (WTR-XLP). Kwimeko ye-thermoplastic, ubushushu bokusebenza obuphezulu bePolythylene yi-75 ° C, ngaphantsi kuneqondo lobushushu lephepha lephepha eliqinisekisiweyo (80 ° 90 °). Le ngxaki iconjululwe ngokufika kwi-polythylene edibene (i-XLPE), enokuhlangana okanye idlule kubushushu benkonzo yeentambo zephepha elifakwe iphepha.

2.4.I-polyethylene edibeneyo (xlpe)
I-XLDE sisixhobo sokuthengisa esenziwe ngokuxuba i-Polythylene (ldpe) ene-arhente enqamlezileyo (njenge-peroxide).
Owona mqhubi uphakamileyo osebenza ngeqondo lobushushu lwe-XPE intambo ye-XLP i-90 ° C, uvavanyo oluninzi lwe-80 ° C. XPE ineempawu ezimfutshane ezingama-2500v ukuya kwi-500v kwi-500kv.

2.5. Umthi onganyangekiyo wamanzi unxibelelene i-polyethylene (WTR-XLPE)
I-phenomeno yomthi wamanzi iya kunciphisa ubomi benkonzo ye-xlpe cable. Zininzi iindlela zokunciphisa ukukhula komthi amanzi, kodwa enye yezona zinto zixhaswe zixhaphakileyo kukusebenzisa izixhobo zokufakelwa kwenjineli ekhethekileyo enzelwe ukuthintela ukukhula komthi wokuthintela imithi, ebizwa ngokuba yiPolithylene Wtr-Xlpe.

2.6. Irabha ye-Ethylene proplene (EPR)
I-EPRA ikwizinto ezithi zenziwe nge-ethylene, i-proplenene (ngamanye amaxesha isisiseko sesithathu), kwaye i-copolymer ye-moposers ezintathu zibizwa ngokuba i-EOTYCLEE GROPLEE irabene (EPDM). Kuluhlu lobushushu olubanzi lobushushu, i-EPR ihlala ihleli ithambile kwaye ichasileyo i-corona elungileyo. Nangona kunjalo, ilahleko ye-dielectric ye-EPR ye-EPR iphakamile kakhulu kune-XPE kunye ne-WTR-Xlwe.

I-3. Inkqubo yokuziqhelanisa i-insulcan
Inkqubo enqamlezileyo icacisiwe kwiPolymer esetyenzisiweyo. Ukuqulunqwa kwe-polymers enqamlezileyo iqala nge-polymer ye-matrix kwaye emva koko izilongezwa kunye neendawo ezinqamlezileyo zongezwa ukwenza umxube. Inkqubo enqamlezileyo yongeza amanqaku onxibelelwano ngakumbi kwimo yemolekyuli. Nje ukuba inxibelelene-inxibelelene, i-polymer molecular i-thein ihlala i-elastiki, kodwa ayinakubanjiswa ngokupheleleyo kwi-fluid melt.

I-4. Umqhubi wokukhusela izinto ezikhuselekileyo
Umaleko okhuselayo obalekayo ukhutshiwe kumphezulu wesifundo kunye nokufakelwa kwi-iyunifomu yombane kwaye uqulathe intsimi yombane kwaye iqulethe intsimi yombane kwi-carrad core. Ezi zixhobo zinenqanaba lobunjineli bezinto ezimnyama zekhabhoni ukwenza ukuba ukhuseleke kwintambo yokufezekisa ukuqhutywa kwezinzile kuluhlu olufunekayo.