Intambo yeMineral Insulated Cable (MI Cable) yintambo ekwaziyo ukumelana nomlilo esebenza kakhulu esekelwe kwinkqubo yezinto zentambo ezingaphiliyo ngokupheleleyo. Ngokungafaniyo neentambo zesiqhelo ezixhomekeke kwizinto zokukhusela i-polymer ezifana ne-PVC,I-XLPEkunyeI-LSZH, Intambo ye-MI yakhiwe kusetyenziswa umqhubi wobhedu, isheya yobhedu engenamthungo, kunye nezinto zokukhusela ezingaphiliyo ze-magnesium oxide (MgO) njengesakhiwo sayo esiphambili. Le nkqubo yezinto imisela ngokusisiseko ukusebenza kwayo okuzinzileyo phantsi kweemeko zobushushu obuphezulu kunye nomlilo.
Ngokwembono yophuhliso lwezinto zekhebula, iinkqubo zezinto ezingaphiliyo ziyayisusa ngempumelelo imiba yokubola, ukunyibilika, kunye nokukhutshwa komsi onetyhefu okwenzeka kwizinto zendalo phantsi kobushushu obuphezulu. Oku kwenza ikhebula le-MI libe sisisombululo esibalulekileyo kwiintambo ezingatshiyo, iintambo zobushushu obuphezulu, kunye nezinto zekhebula zenkqubo yamandla ebalulekileyo.
Ulwakhiwo lwezinto kunye noBume bazo
Ukusebenza kwentambo ye-MI kuxhomekeka kakhulu kwinkqubo yayo yezixhobo zentambo eziphambili. Intambo yenziwe ngentambo yobhedu ecocekileyo kakhulu, ebonelela ngombane ogqwesileyo kunye nokumelana okuphantsi, okwenza ibe yinxalenye ebalulekileyo yezixhobo zentambo yombane.
Umaleko wokwambathisa usebenzisa i-magnesium oxide (i-MgO insulation), into eqhelekileyo yokwambathisa intambo ye-inorganic eneqondo lokunyibilika elingaphezulu kwama-2800°C. Igcina ukusebenza kakuhle kwe-dielectric nokuba kuphantsi kobushushu obugqithisileyo, isebenza njengesixhobo esiphambili esivumela ukumelana nomlilo.
Umaleko ongaphandle uneshelufu yobhedu engenamthungo, ebonelela ngokhuseleko loomatshini kunye nokumelana nokugqwala. Ikwabonelela ngokusebenza kakuhle kokuqhuba ubushushu kunye nokukhusela nge-electromagnetic (EMI shielding). Ukongeza, ishelufu yobhedu ingasebenza njengomqhubi wokumisa umhlaba, yenza kube lula uyilo lwenkqubo kwaye iphucule ukuthembeka kokusebenza.
Ukusebenza komlilo kunye neenzuzo zezinto eziphathekayo
Phantsi kweemeko zomlilo, umahluko kwiinkqubo zezinto uba ngundoqo. Izixhobo zekhebula zepolymeric zemveli zihlala ziqala ukubola okanye ukungasebenzi kakuhle kubushushu obuphakathi kwama-300°C nama-500°C, zikhupha umsi kunye neegesi eziyingozi.
Ngokwahlukileyo koko, intambo ye-MI isekelwe kwinkqubo yokukhusela i-inorganic, kwaye inokugcina umbane uqinile phantsi kokukhanya kwelangatye ngqo malunga ne-950°C. Iyakwazi ukusebenza ngokuqhubekayo ngaphezu kwemizuzu engama-90, ihlangabezana nemigangatho yamazwe ngamazwe yokumelana nomlilo efana ne-BS 6387 kunye ne-IEC 60331.
Okwangoku, izixhobo zayo zentambo ezingatshiyo azitshi, azivelisi msi, kwaye azikhuphi iigesi ezinobuthi, nto leyo eyenza intambo ye-MI ibe sisisombululo esiqhelekileyo sezixhobo zentambo zokusinda emlilweni ezisetyenziswa kakhulu kwiinkqubo zombane ezingxamisekileyo kunye nokukhusela umlilo.
Iingenelo kunye nemingeni esekelwe kwizinto eziphathekayo
Ngokwembono yezinto zekhebula, ikhebula le-MI linika ukumelana nomlilo ngokwangaphakathi, amandla aphezulu okuthwala umbane, kunye nobomi benkonzo ende (ngesiqhelo iminyaka engama-40-60). Lifanelekile kwiindawo ezinobushushu obuphezulu, ezifumileyo, nezinobungozi.
Nangona kunjalo, ngenxa yokusetyenziswa kakhulu kwezinto zobhedu kunye ne-magnesium oxide insulation (MgO insulation), ixabiso lezinto lilonke liphezulu kuneleenkqubo zekhebula eziqhelekileyo. Ukongeza, ulwakhiwo olupheleleyo lwe-inorganic lubangela ukuqina okuphezulu, okubeka iimfuno ezingqongqo ekufakweni kwekhebula, ukusebenza kokugoba, kunye neenkqubo zokutywina zokuphelisa.
Uyilo lweentambo ze-MI eziguquguqukayo lunokuphucula ukusebenza kofakelo, kodwa lukwanyusa ubunzima bezinto kunye nokuveliswa.
Izicelo eziqhelekileyo
Ngenxa yokusebenza kwayo kakuhle kwezixhobo zekhebula ezingatshiyo, intambo ye-MI isetyenziswa kakhulu kwiinkqubo zokukhusela umlilo kwizakhiwo eziphakamileyo, iziseko zophuhliso lwezithuthi zikaloliwe, izibonelelo zikawonke-wonke ezinkulu, kunye neendawo ze-petrochemical ezinobushushu obuphezulu kunye neengozi ezinokutsha.
Kwezi zicelo, ukusebenza okuzinzileyo kwenkqubo yayo yezinto zekhebula kuqinisekisa ukunikezelwa kombane okuqhubekayo phantsi komlilo okanye kwiimeko ezinzima, nto leyo eyenza ukuba ibe sisisombululo esibalulekileyo kwiinkqubo zamandla omthwalo obalulekileyo.
Isiphelo: Iindlela zoPhuhliso lweZixhobo zeCable
Ngokwembono yeendlela zophuhliso lwezixhobo zekhebula, i-MI cable imele utshintsho olukhulu ukusuka kwizinto zokukhusela ezingokwemvelo ukuya kwizinto zokukhusela ezingaphiliyo.
Kubaboneleli bezixhobo zekhebula, ubuchule bokulawula ubunyulu, ukusasazwa kobungakanani besuntswana, ukumelana nokufuma, kunye neempawu zokuhamba kwe-magnesium oxide (i-MgO insulation), kunye nokunikezelwa okuzinzileyo kwezinto zokuqhuba ubhedu kunye nezixhobo zesheya yobhedu, ziya kuba zizinto eziphambili zokukhuphisana kwimarike yezixhobo zekhebula ezimelana nomlilo.
Siyaqhubeka nokugxila nokubonelela ngezisombululo zezixhobo zekhebula ezinxulumene noko, sixhasa abathengi ekusebenziseni ikhebula le-MI kunye nezinye iinkqubo zekhebula ezisebenza kakuhle ezingatshiyo.
Ixesha leposi: Epreli-29-2026