Kwintsimi yobunjineli bombane, ukukhethwa kweentambo eziphezulu ze-voltage kunye ne-low-voltage kubalulekile ukuqinisekisa ukuhanjiswa kwamandla okukhuselekileyo, okusebenzayo kunye nokuthembekileyo. Ukuqonda umahluko ophambili phakathi kwezi ntlobo zimbini zeentambo kunokunceda iinjineli, oombane, kunye nabaphathi beprojekthi benze izigqibo ezinolwazi ngezicelo zabo ezithile.
Inkcazo kunye noluhlu lombane
Iintambo zombane ophezuluziyilelwe ukuthwala amandla ombane akhoyo ngaphezulu kwe-1,000 volts (1 kV). Ezi ntambo zibalulekile ekugqithiseni umbane kumgama omde, njengokusuka kumaziko ombane ukuya kwizitishi ezincinci okanye phakathi kwezikhululo ezincinci kunye nothungelwano lokuhambisa. Usetyenziso oluqhelekileyo lubandakanya iintambo zamandla aphezulu kunye neenkqubo zothumelo zangaphantsi komhlaba.
Ngakolunye uhlangothi, iintambo ze-low-voltage zisebenza kumbane ongaphantsi kwe-1,000 volts. Ngokuqhelekileyo zisetyenziselwa ukukhanyisa, ukuhanjiswa kwamandla kunye neenkqubo zokulawula kwiindawo zokuhlala, zorhwebo kunye nezoshishino. Umzekelo, iintambo ezisetyenziswa kwiingcingo zendlu, iisekethe zokukhanyisa kunye noomatshini abancinci.
Ukwakhiwa kunye nezixhobo
Ukwakhiwa kweentambo eziphezulu ze-voltage zinzima ngakumbi kunezo zeentambo eziphantsi. Iintambo zombane ophezulu zihlala zinemigangatho emininzi, kubandakanywa ii-conductor, ii-insulators, amakhaka kunye neesheaths zangaphandle. Izinto zokugquma zibalulekile ukukhusela ukuvuza nokuqinisekisa ukhuseleko. Izinto ezisetyenziswa ngokuqhelekileyo zokugquma kwiintambo eziphezulu ze-voltage ziquka i-polyethylene edibeneyo (XLPE) kunye ne-ethylene-propylene rubber (EPR).
Iintambo zombane ophantsi zihlala zilula kuyilo, nangona zisafuna izixhobo ezisemgangathweni. Ngokuqhelekileyo zifakwe kwi-PVC (i-polyvinyl chloride) okanye i-rubber, eyanele ukulinganiswa kombane ophantsi. Izinto ze-conductor zinokwahluka, kodwa ubhedu kunye ne-aluminium zezona zikhetho eziqhelekileyo kwizicelo eziphezulu kunye nezantsi.
Ukusebenza kunye nokhuseleko
Iintambo zombane ophezuluzenzelwe ukumelana neemeko ezinzima, kubandakanywa amaqondo obushushu aphezulu, uxinzelelo lomatshini kunye nemiba yokusingqongileyo. Zihlala zivavanyelwa amandla e-dielectric, alinganisa ukukwazi kwentambo ukuxhathisa ukophuka kombane. Oku kubalulekile ekuqinisekiseni ukhuseleko kunye nokuthembeka kwenkqubo yokuhanjiswa kwamandla.
Ngokwahlukileyo, iintambo zombane ophantsi ziyilelwe iimeko ezingabalulekanga kangako. Ngelixa zisafuna ukuhlangabezana nemigangatho yokhuseleko, iimfuno zokusebenza azikho ngqongqo njengeentambo zombane ophezulu. Nangona kunjalo, iintambo zombane ophantsi kufuneka zithobele iikhowudi zombane zasekhaya kunye nemimiselo yokuqinisekisa ukusebenza ngokukhuselekileyo.
Isicelo
Ukusetyenziswa kweentambo eziphezulu ze-voltage kunye ne-low-voltage cables zihluke kakhulu. Iintambo zamandla ombane aphezulu zisetyenziswa ikakhulu ekuveliseni umbane, kwiinkqubo zokuhambisa nokusasaza. Zibalulekile ekudibaniseni imithombo yamandla ahlaziyekayo efana neefama zomoya kunye nelanga kwigridi.
Nangona kunjalo, iintambo zombane ophantsi zikho kuyo yonke indawo kubomi bemihla ngemihla. Zisetyenziselwa kwi-wiring yokuhlala, izakhiwo zorhwebo kunye nezibonelelo zoshishino zokukhanya, ukufudumala kunye namandla ezixhobo ezahlukeneyo. Ukuguquguquka kwabo kubenza bafanelekele uluhlu olubanzi lwezicelo, ukusuka kwiisekethe zekhaya ezilula ukuya kwiinkqubo zokulawula eziyinkimbinkimbi kwizityalo zokuvelisa.
ukuququmbela
Isishwankathelo, ukukhethwa kweentambo eziphezulu ze-voltage kunye ne-low-voltage kuxhomekeke kwiimfuno ezithile zenkqubo yombane ehambelana nayo. Iintambo zombane ophezulu ziyimfuneko ekuhanjisweni kombane ngokufanelekileyo kumgama omde, ngelixa iintambo ezinombane ophantsi ziyimfuneko kwizicelo zombane zemihla ngemihla. Ukuqonda ukungafani okuphambili kulwakhiwo, ukusebenza, kunye nesicelo kunokunceda iingcali zenze izigqibo ezinolwazi ukuqinisekisa ukhuseleko kunye nokuthembeka kweenkqubo zabo zombane. Nokuba uyila igridi entsha yombane okanye iingcingo zasekhaya, ukwazi ixesha lokusebenzisa iintambo ezinevoltage ephezulu kunye nezisezantsi kubalulekile kwimpumelelo.
Ixesha lokuposa: Oct-21-2024