Kwicandelo lobunjineli bombane, ukukhethwa kweentambo ze-voltage ephezulu kunye neze-voltage ephantsi kubalulekile ukuqinisekisa ukudluliselwa kwamandla okukhuselekileyo, okusebenzayo nokuthembekileyo. Ukuqonda umahluko ophambili phakathi kwezi ntlobo zimbini zeentambo kunokunceda iinjineli, iingcali zombane, kunye nabaphathi beeprojekthi benze izigqibo ezinolwazi malunga nezicelo zabo ezithile.
Inkcazo kunye noluhlu lwevolthi
Iintambo zombane eziphezuluzenzelwe ukuthwala umbane kwiivolthi ezingaphezulu kwe-1,000 volts (1 kV). Ezi ntambo zibalulekile ekudluliseni umbane kumgama omde, njengakwizikhululo zamandla ukuya kwizikhululo okanye phakathi kwezikhululo zamandla kunye neenethiwekhi zokusasaza. Izicelo eziqhelekileyo ziquka imigca yamandla ephezulu kunye neenkqubo zokuhambisa umbane phantsi komhlaba.
Iintambo ze-voltage ephantsi, kwelinye icala, zisebenza kwii-voltage ezingaphantsi kwe-1,000 volts. Zisetyenziswa kakhulu ekukhanyiseni, ukusasazwa kwamandla kunye neenkqubo zolawulo kwiindawo zokuhlala, zorhwebo kunye nezoshishino. Umzekelo, iintambo ezisetyenziswa kwiintambo zasekhaya, kwiisekethe zokukhanyisa kunye noomatshini abancinci.
Ulwakhiwo kunye nezixhobo
Ulwakhiwo lweentambo ze-high-voltage luyinkimbinkimbi ngakumbi kuneentambo ze-low-voltage. Iintambo ze-high-voltage zihlala zineeleya ezininzi, kuquka ii-conductors, ii-insulators, ii-shield kunye nee-external sheaths. Izinto zokukhusela zibalulekile ukuthintela ukuvuza nokuqinisekisa ukhuseleko. Izinto zokukhusela ezisetyenziswa rhoqo kwiintambo ze-high-voltage ziquka i-cross-linked polyethylene (XLPE) kunye ne-ethylene-propylene rubber (EPR).
Iintambo ze-voltage ephantsi zihlala zilula ukuyila, nangona zisafuna izinto ezisemgangathweni. Zihlala zigqunywa kusetyenziswa i-PVC (i-polyvinyl chloride) okanye irabha, eyaneleyo ukuze kubekho umlinganiselo ophantsi we-voltage. Izinto ze-conductor zingahluka, kodwa ubhedu kunye ne-aluminium zezona zikhethwayo ziqhelekileyo kwizicelo ze-voltage ephezulu nephantsi.
Ukusebenza kunye nokhuseleko
Iintambo ze-voltage ephezuluZenzelwe ukumelana neemeko ezinzima, kuquka amaqondo obushushu aphezulu, uxinzelelo loomatshini kunye nezinto ezingqongileyo. Zihlala zivavanywa amandla e-dielectric, nto leyo elinganisa amandla entambo okumelana nokuqhekeka kombane. Oku kubalulekile ekuqinisekiseni ukhuseleko kunye nokuthembeka kwenkqubo yokuhambisa umbane.
Ngokwahlukileyo koko, iintambo ze-voltage ephantsi zenzelwe iindawo ezingenzima kangako. Nangona zisafuna ukuhlangabezana nemigangatho yokhuseleko, iimfuno zokusebenza azikho nzima njengeentambo ze-voltage ephezulu. Nangona kunjalo, iintambo ze-voltage ephantsi kufuneka zilandele imigaqo yombane yendawo ukuqinisekisa ukusebenza ngokukhuselekileyo.
Isicelo
Ukusetyenziswa kweentambo ze-voltage ephezulu kunye neentambo ze-voltage ephantsi kwahlukile kakhulu. Iintambo ze-voltage ephezulu zisetyenziswa kakhulu kwiinkqubo zokuvelisa umbane, uthumelo kunye nokusasazwa kombane. Zibaluleke kakhulu ekuqhagamsheleni imithombo yamandla avuselelekayo efana neefama zomoya kunye nelanga kwigridi.
Nangona kunjalo, iintambo ezisebenzisa umbane ophantsi zixhaphakile kubomi bemihla ngemihla. Zisetyenziswa kwiintambo zokuhlala, kwizakhiwo zorhwebo nakwizakhiwo zoshishino ukukhanyisa, ukufudumeza kunye nokunika amandla izixhobo ezahlukeneyo. Ukuguquguquka kwazo kuzenza zilungele ukusetyenziswa ngeendlela ezahlukeneyo, ukusuka kwiisekethe ezilula zasekhaya ukuya kwiinkqubo zolawulo ezintsonkothileyo kwizityalo zokwenza izinto.
ukuququmbela
Ngamafutshane, ukukhethwa kweentambo ezine-voltage ephezulu kunye ne-low voltage kuxhomekeke kwiimfuno ezithile zenkqubo yombane ehambelana nayo. Iintambo ezine-voltage ephezulu zibalulekile ekudlulisweni kombane ngokufanelekileyo kumgama omde, ngelixa iintambo ezine-voltage ephantsi zibalulekile kwizicelo zombane zemihla ngemihla. Ukuqonda umahluko ophambili kulwakhiwo, ukusebenza, kunye nokusetyenziswa kunokunceda iingcali ukuba zenze izigqibo ezinolwazi ukuqinisekisa ukhuseleko kunye nokuthembeka kweenkqubo zazo zombane. Nokuba uyila igridi entsha yombane okanye iingcingo zasekhaya, ukwazi ukuba kufuneka uzisebenzise nini iintambo ezine-voltage ephezulu kunye ne-low voltage kubalulekile kwimpumelelo.
Ixesha leposi: Oktobha-21-2024