Kwicandelo lobunjineli bombane, ukukhethwa kwe-voltage ephezulu kunye neentambo ze-voltage ephantsi kubalulekile ukuqinisekisa ukothulwa amandla okukhuselekileyo, okusebenzayo nothembekileyo. Ukuqonda umahluko ophambili phakathi kwezi ntlobo zimbini zentambo kunokunceda iinjineli, oombane, kunye nabaphathi beeprojekthi zenze izigqibo ezizizo zezicelo zabo.
Ingcaciso kunye nodidi lwevolthi
Iintambo zevolthi ephezuluzenzelwe ukuthwala okwangoku kwi-voltages ihlala ngaphezulu kwe-1 000 yeVolts (1 kv). Ezi cubhi zibalulekile ekudluliseleni umbane ngaphezulu komgama omde, njengokuvela kwizityalo zamandla ukuya kwezinto okanye phakathi kwezinto kunye nothungelwano lothungelwano. Izicelo eziqhelekileyo zibandakanya imigca yamandla ngaphezulu kunye neenkqubo zokuhambisa phantsi komhlaba.
Amaqhina evolthi ephantsi, kwelinye icala, asebenza kwi-voltages ngaphantsi kwe-1 000 yeVolts. Ziqhelekile ngokusetyenziswa, ukuhambisa amandla okusasazwa kunye neenkqubo zokulawula kwiindawo zokuhlala, zorhwebo kunye nezorhwebo. Umzekelo, iintambo ezisetyenziswa kwi-wiring ye-wiring, imijikelezo emikhanyithi kunye noomatshini abancinci.
Ulwakhiwo kunye nezixhobo
Ubume beentambo ze-voltage ephezulu bunzima ngakumbi kunezo ze-voltage ephantsi. Iintambo eziphezulu zevolthi zihlala ziquka izingqala ezininzi, kubandakanya nabaqhubi, izibambisi, iingweletshetshe kunye nezingotshi zangaphandle. Izinto zokuthambisa zibalulekile ukuthintela ukuvuza kwaye kuqinisekiswe ukhuseleko. Izinto ezisetyenziswayo ezisetyenziswayo kwi-Conts-volts ephezulu ibandakanya i-polyethylene edibeneyo (i-XLPE) ne-Ebano-ye-Ebanone-Proplene-Proplene Traplene
Iikhabhathi ze-voltage eziphantsi zihlala zilula kakhulu kuyilo, nangona zisafuna izixhobo ezisemgangathweni. Zihlala zithathwe i-insuring usebenzisa i-pvc (i-polyvinyl chloride) okanye irabha, ekwanele ukulinganisa i-voltage. Izixhobo zokuqhuba zinokwahluka, kodwa u-Preper kunye ne-aluminium yeyona ndlela iqhelekileyo yokhetho oluqhelekileyo kunye nolusezantsi lweevolthi.
Intsebenzo kunye nokhuseleko
Iintambo eziphezulu zevolthiInjiya ukuba iphazamise iimeko ezigqithileyo, kubandakanya amaqondo obushushu aphezulu, uxinzelelo lomatshini kunye nezinto zokusingqongileyo. Bahlala bevavanywa ngenxa yamandla obuqhetseba, alinganisa amandla entambo yokuxhathisa iqhekeza lombane. Oku kubaluleke kakhulu ekuqinisekiseni ukhuseleko kunye nokuthembeka kwenkqubo yokuhambisa amandla.
Ngokwahlukileyo, iintambo ze-voltage ephantsi zenzelwe indawo encinci yokufuna. Ngelixa kusafuneka bafezekise imigangatho yokhuseleko, iimfuno zentsebenzo azingqengqeni njengeentambo zevolthi yokuvota kakhulu. Nangona kunjalo, iintambo ze-voltage ezisezantsi kufuneka zihambelane neekhowudi zombane zendawo ukuqinisekisa ukusebenza ngokukhuselekileyo.
Isicelo
Ukusetyenziswa kweentambo ze-voltage ephezulu kunye neentambo zevolthi ephantsi zahluke kakhulu. Iintambo ze-voltage ephezulu zisetyenziswa ikakhulu kwizizukulwana zamandla, ukuhambisa kunye neenkqubo zokuhambisa. Babalulekile ekunxibelelaneni nemithombo yamandla ahlaziyiweyo efana ne-moya kunye neefama zelanga kwigridi.
Nangona kunjalo, iintambo ze-voltage ephantsi zizinto ezimnandi kubomi bemihla ngemihla. Zisetyenziswa kwi-wiri yokuhlala, izakhiwo zentengiso kunye namaziko emizi-mveliso ukukhanyisa, ubushushu kunye namandla izixhobo ezahlukeneyo. Ukuhamba kwabo jikelele kubangela ukuba balungele uluhlu olubanzi lwezicelo, kwimijikelezi yendlu elula kwiinkqubo zolawulo ezintsonkothileyo kwizityalo zokwenza izinto.
ukuququmbela
Isishwankathelo, ukhetho lwe-voltage ephezulu kunye neentambo zevolthi ephantsi ixhomekeke kwiimfuno ezithile zenkqubo yombane ehambelana nayo. Iintambo eziphezulu zevolthi zibalulekile ukuze zihambisane ngombane ngaphezulu komgama omde, ngelixa iintambo zevolthi ephantsi zibalulekile kwizicelo zemibane zemihla ngemihla. Ukuqonda umahluko ophambili ekwakhiweni, ukusebenza, kunye nokusebenza kunokunceda iingcali zenze izigqibo ezizizo zokuqinisekisa ukhuseleko kunye nokuthembeka kweenkqubo zabo zombane. Nokuba uyila igridi entsha yombane okanye i-wiring yekhaya, ukwazi ukuba ungasebenzisa nini ivolli ephezulu kunye neentambo zevolthi ephantsi kubalulekile kwimpumelelo.
IXESHA LOKUQALA: I-OCT-21 ukuya kwi-2124