Indlela Engathethiyo: Kutheni Umthamo Wokuthwala Intambo Ngoku Ubalulekile Kwihlabathi Lanamhlanje

Kwindawo entsonkothileyo yempucuko yethu enezinto zombane, intambo yombane ethobekileyo liqhawe elingadunyiswanga. Sibabona bengena emva kweendonga, bebotshelelwe kwiitreyi zemizi-mveliso, nangaphantsi komhlaba, bengayinaki indima yabo ebalulekileyo. Sekunjalo, embindini wenkqubo yombane ekhuselekileyo, esebenzayo, nethembekileyo kukho umbuzo olula ngokukhohlisayo: Ingakanani intambo enokuthwala umbane ngokukhuselekileyo? Impendulo, echazwa yiyoUmthamo Wokuthwala Okhoyo Oqhelekileyo, lubalo oluntsonkothileyo olunefuthe elikhulu kukhuseleko, utshintsho lwamandla, kunye nokusebenza kakuhle kwezoqoqosho.

Le parameter isisiseko, edla ngokufinyezwa ngokuthi yi-Ampacity, ayifani nokuba yinombolo engaguqukiyo eprintiweyo kwiphepha leenkcazo. Lixabiso eliguqukayo, ulungelelwaniso olucokisekileyo phakathi kwefiziksi, isayensi yezinto, kunye nenyani yokusingqongileyo. Ukuyiqonda akuseyongxaki nje yenjineli; kubalulekile kuye wonke umntu ukususela kubenzi bomgaqo-nkqubo abaceba ukuphuculwa kwegridi yesizwe ukuya kubanini bezindlu abafaka itshaja yezithuthi zombane.

Ukuchaza uMgca woBomi: Yintoni kanye kanye i-Ampacity?

Umthamo wokuthwala umbane oqhelekileyo wentambo ngumbane wombane oqhubekayo ophezulu onokuwuthwala phantsi kweemeko ezithile ngaphandle kokuba ubushushu bawo obuzinzileyo budlule umda omiselweyo. Lo mda wobushushu ubalulekile kuba ukuwudlula ukhawulezisa ukonakala kwe-insulation yentambo, okukhokelela ekusileleni kwangaphambi kwexesha, ii-short circuits, kwaye, kwiimeko ezimbi kakhulu, imililo.

“Cinga ngentambo njengendlela emxinwa,” ucacisa uGqr. Alisha Sharma, uprofesa wobunjineli bombane kwiZiko leTekhnoloji. “Ii-electron ziimoto. Umbane linani leemoto ezidlula inqaku ngomzuzwana. Xa ‘iimoto’ ezininzi zizama ukusebenzisa indlela, ukungqubana—okanye ukumelana nombane—kuvelisa ubushushu. Ukuba ubushushu abukwazi ukunyamalala ngokukhawuleza, ‘indlela’ ngokwayo, i-insulation, iqala ukunyibilika. Ubukhulu bendlela yinkqubo yolawulo lwezithuthi ethintela olu xinzelelo lubi.”

Iintsika ezine zoBukhulu: Ukulinganisela okuNgcono

Umlinganiselo wangoku wentambo awuhambelani nombindi wayo wekopolo okanye we-aluminiyam. Umiselwa kukulinganisela okubuthathaka kwezinto ezine ezibalulekileyo:

1. Izinto zoMqhubi kunye nobukhulu: Eyona nto iphambili kwiNgxaki

Eyona nto iqondakala lula yi-conductor ngokwayo. I-Copper, ene-conductivity ephezulu, ngokwendalo inomlinganiselo ophezulu kune-aluminium kwindawo efanayo. Yingakho izicelo zokusebenza okuphezulu zihlala zikhetha i-copper.

Okubaluleke ngakumbi bubungakanani, obulinganiswa ngeemilimitha zesikwere (mm²) okanye i-AWG (i-American Wire Gauge). Umqhubi otyebileyo unokumelana okuncinci kombane, okufana nombhobho obanzi ovumela amanzi amaninzi ukuba ahambe ngokulahlekelwa kancinci koxinzelelo. Umzekelo, i-PVC esemgangathweni efakwe i-insulation Intambo yeCopper Ingalinganiswa malunga nee-Amps ezili-16 kwi-1.5mm², kodwa oku kungafikelela kwii-Amps ezingaphezu kwe-100 kwintambo engama-25mm².

2. Izinto zokuvala ubushushu: I-Thermal Guardian

Uhlobo lobushushu luphawu oluphambili lobushushu obuphezulu obuvumelekileyo. Izixhobo ezahlukeneyo zinobushushu obahlukeneyo.

I-PVC (iPolyvinyl Chloride):Iqhelekile kwaye ingabizi kakhulu, kodwa ineqondo lobushushu lokusebenza eliphantsi kakhulu (ngesiqhelo yi-70°C). Oku kunciphisa amandla ayo okusebenza.

I-XLPE (iPolyethylene eDibeneyo):Yinto esemgangathweni, enokuthi, ngenkqubo yeekhemikhali, ikwazi ukumelana namaqondo obushushu aphezulu (ngesiqhelo i-90°C). Oku kuvumela intambo efakwe i-XLPE ukuba ithwale amandla angaphezulu kunentambo efakwe i-PVC enobukhulu obufanayo.

Irabha (umz., i-EPR):Inika ukuguquguquka okugqwesileyo kunye nokumelana nobushushu, isetyenziswa rhoqo kwiindawo ezifuna amandla amaninzi ezifana nokumba imigodi okanye imicimbi ephilayo.

Ukufakwa kweZimbiwa (MI): Iyakwazi ukumelana namaqondo obushushu agqithisileyo angaphezulu kwama-250°C, isetyenziswa kukhuseleko lomlilo olubalulekileyo kunye nokusetyenziswa kwamaqondo obushushu aphezulu.

3. Indlela yoFakelo: Into eBalulekileyo yokuPholisa

Indlela efakelwa ngayo intambo kwaye phi ichaphazela kakhulu amandla ayo okunciphisa ubushushu. Olu lolona tshintsho luhlala lujongwa kwiindawo ezingezizo ezobuchwephesha.

Inqunyulwe ngqo kumphezulu okanye ingcwatywe ngqo emhlabeni:Ezi zezinye zezona meko zibalaseleyo zokupholisa. Umoya okanye umhlaba unokujikeleza kwaye utsale ubushushu, nto leyo ebangela ukuba kubekho ubushushu obuninzi.

Ifakwe kwiConduit okanye kwiTrunking:Le yindawo enomda ngakumbi. Iintambo ezidityaniswe ndawonye kwindawo exineneyo zibamba ubushushu, nto leyo ebangela ukunyuka kobushushu. Imithetho yesizwe yocingo, njenge-NEC e-US okanye i-IEC 60364 kwihlabathi liphela, iyalela ukuba kubekho imfuneko ebalulekileyo.izinto ezibangela ukucaphukaIntambo enokuthwala ii-Amps ezingama-40 emoyeni ovulekileyo inokususwa ibe zii-Amps ezingama-28 kuphela xa ihlanganiswe nezinye ezimbini kwi-conduit.

Yangcwatyelwa kwiMijelo: Ukumelana nobushushu bomhlaba ojikelezileyo kudlala indima enkulu. Umhlaba owomileyo, onesanti awukhokeli kakuhle ubushushu xa uthelekiswa nodongwe olumanzi, nto leyo ekhokelela ekubeni umhlaba ube manzi kancinci.Ubushushu Obungqongileyo: Isiseko Sokusingqongileyo

4. Uvavanyo lwentambo lusekelwe kubushushu obuqhelekileyo bemozulu, obuhlala buyi-30°C emoyeni okanye i-20°C emhlabeni. Ukuba intambo ifakwe kwigumbi lebhoyila okanye eluphahleni olutshiswe lilanga apho ubushushu bemozulu buyi-50°C, amandla ayo okupholisa ayaphazamiseka kakhulu. Ubungakanani bayo obuqhelekileyo kufuneka buncitshiswe ukuthintela isimbukuukunyuka kwemozulu kunye nobushushu obungaphezulu komda we-insulation.

Inkangeleko yokuthelekisa: Ukusebenzisa ithiyori

Indlela ezi zinto ezisebenza ngayo iboniswe kakuhle ngemizekelo. Cinga ngomqhubi wobhedu oyi-16 mm²:

I-PVC efakwe i-insulation, i-Clipped Direct:Ubungakanani bayo bunokuba malungaIi-Amps ezingama-80.

I-XLPE Insulated, iClipped Direct:Ngenxa yomgangatho wayo ophezulu wobushushu, umqhubi ofanayo wayenokuthwalaIi-Amps ezili-100.

I-XLPE Insulated, kwiConduit enezinye iintambo ezimbini:Ngokusebenzisa i-deration yokudibanisa amaqela, amandla ayo okhuseleko anokwehla aye kwi-Ii-Amps ezingama-75.

Intambo efanayo kwiqondo lobushushu eliphakathi elingama-45°C:Ukugxekwa okungakumbi kunokunyusa inani lokugqibela liyeIi-Amps ezingama-65.

Oku kubonisa ngokucacileyo ukuba kutheni ukukhetha nje intambo ngokusekelwe kubungakanani bomqhubi wayo kuyingozi.

Qhagamshelana IYABHALWA ngoku ukufumana umgangatho ongaphezulu intambo！