Khusela iiSekethe zakho: Qonda indima kunye nomahluko phakathi kweMcb kunye ne-Elcb

Qonda Umahluko PhakathiI-MCBkwayeI-ELCB

Kwabo bangaqhelananga namagama ombane, amagama athi MCB kunye ne ELCB avakala ngathi luluhlu nje loonobumba abangacwangciswanga. Nangona kunjalo, kwicandelo lobunjineli bombane, ezi zifinyezo zibaluleke kakhulu kwaye zinokudlala indima enkulu ekugcineni ukhuseleko lombane. Kule posi yebhlog, siza kujonga ngakumbi umahluko phakathi kweeMCB kunye nee-ELCB, kunye nendlela ezikhusela ngayo iinkqubo zombane kunye nabasebenzisi.

Masiqale siqonde ukuba i-MCB kunye ne-ELCB zimele ntoni. I-MCB imele i-miniature circuit breaker kwaye i-ELCB imele i-earth leakage circuit breaker. Zombini ezi zixhobo zenzelwe ukuphula i-circuit xa kukho impazamo, kodwa zisebenza ngeendlela ezahlukeneyo kwaye zineentsingiselo ezahlukeneyo.

I-MCB, njengoko igama lisitsho, sisitshizi esincinci sesekethe esenzelwe ukukhusela iisekethe kwimithwalo engaphezulu kunye neesekethe ezimfutshane. Xa umsinga ogqithisileyo uhamba kwisekethe, i-MCB iya kukhubeka ngokuzenzekelayo kwaye ikhuphe isekethe ukuze kuthintelwe umonakalo kwizixhobo ezixhunyiweyo okanye kwiintambo. Oku kwenza i-MCB ibe yinxalenye ebalulekileyo ekuthinteleni imililo yombane kunye nokukhusela ukhuseleko lwabasebenzisi benkqubo yombane.

Kwelinye icala, ii-ELCB zizixhobo zokwaphula iisekethe ezenzelwe ngokukodwa ukukhusela ukuvuza okanye iimpazamo zomhlaba. Zibona ukuvuza okuncinci kwamandla avela kwiikhontraktha eziphilayo kwisekethe ukuya emhlabeni kwaye ziphazamise isekethe xa kufunyenwe ukuvuza okunjalo. Oku kubaluleke kakhulu ukuthintela ukutshayiswa kombane xa izixhobo zingasebenzi okanye iingcingo zonakalisiwe.

Omnye wemiba ephambili phakathi kwe-MCB kunye ne-ELCB yindlela ezisebenza ngayo. Umgaqo osebenzayo we-MCB ngumgaqo we-thermal magnetic tripping, oya kukhubeka xa umsinga uphezulu kakhulu okanye kwenzeka i-short circuit. Kwelinye icala, i-ELCB isebenza ngokufumanisa ukungalingani komsinga phakathi komqhubi ophilayo kunye nomqhubi ongathathi cala. Xa kufunyenwe umsinga wokuvuza, i-ELCB iyakhubeka kwi-circuit ukuthintela iingozi zombane.

Ngokwendlela ezisetyenziswa ngayo, ii-MCB zisetyenziswa kakhulu ukukhusela iingcingo zombane kunye nezixhobo emakhayeni, kwizakhiwo zorhwebo, nakwizakhiwo zoshishino. Luluhlu lokuqala lokhuselo kwimithwalo engaphezulu kunye neesekethe ezimfutshane, ukuqinisekisa ukhuseleko lwenkqubo yombane kunye nabo bonke abayisebenzisayo. Kwelinye icala, ii-ELCB zihlala zisetyenziswa apho kukho umngcipheko omkhulu wokuvuza kombane, njengezifudumezi zamanzi, ukufakelwa kombane ngaphandle, okanye iindawo ezimanzi.

Kwezinye iimeko, i-MCB kunye ne-ELCB zinokudityaniswa zibe sisixhobo esinye esibizwa ngokubaI-RCBO(i-residual current breaker kunye nokhuseleko lokugqithisa). Esi sixhobo sidibanisa iingenelo ze-MCB kunye ne-ELCB ukubonelela ngokhuseleko lokugqithisa, ukujikeleza okufutshane kunye nokukhusela iimpazamo zomhlaba. Oku kwenza ukuba ibe sisisombululo esiguquguqukayo nesibanzi sokuqinisekisa ukhuseleko lombane kwiindlela ezahlukeneyo zokusebenza.

Kubalulekile ukuqaphela ukuba nangona ii-MCB kunye nee-ELCB zibalulekile kukhuseleko lombane, azinabungozi. Ukugcinwa rhoqo kunye novavanyo kubalulekile ukuqinisekisa ukuba ezi zixhobo zisebenza kakuhle. Ukongeza, kubalulekile ukuba zifakwe yingcali yombane efanelekileyo ukuqinisekisa ukuba zinobukhulu obuchanekileyo kwaye zifakelwe ngokweemfuno ezithile zenkqubo yombane.

Ngamafutshane, zombini i-MCB kunye ne-ELCB zizinto ezibalulekileyo ekugcineni ukhuseleko lombane kunye nokuthintela iingozi. I-MCB ikhusela kwi-overloads kunye ne-short circuits, ngelixa i-ELCB ikhusela kwi-earth disfects okanye kwi-leaving currents. Ukuqonda umahluko phakathi kwezi zixhobo zimbini kunye nemisebenzi yazo kubalulekile ekugcineni inkqubo yombane ekhuselekileyo nethembekileyo. Nokuba zisetyenziswa zodwa okanye zidityaniswe, ezi zixhobo zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lokufakelwa kombane kunye nabasebenzisi bazo.