Yazisa:
Ii-circuit breakers zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lombane. Zithintela ukugqithiswa kakhulu, ii-short circuits kunye neempazamo zombane, zikhusela ubomi kunye nezixhobo zombane ezixabisekileyo. Kule blog, siza kujonga ngokunzulu ihlabathi lee-circuit breakers, sigxile ngokukodwa kumahluko kunye nemisebenzi ye-RCCB, i-MCB kunye ne-RCBO.
1. Ulwazi olusisiseko ngee-circuit breakers:
Ngaphambi kokuba singene kwiinkcukacha, masiqale siqonde ukuba yintoni i-circuit breaker. Ngokuyintloko, i-circuit breaker sisitshixo esizenzekelayo esinceda ukukhusela ii-circuits kumonakalo obangelwa ngumbane ogqithisileyo. Xa i-circuit igcwele kakhulu okanye imfutshane, i-circuit breaker iphazamisa ukuhamba kombane, ithintela iingozi ezinokubakho ezifana nemililo yombane.
2. Isixhobo sokwaphula iisekethe esincinci (I-MCB):
Ii-MCB zezona ziqhekezi zesekethe ezisetyenziswa kakhulu kwiindawo zokuhlala nezorhwebo. Ezi zixhobo zincinci kodwa ziqinileyo zenzelwe ukukhusela umbane ogqithisileyo obangelwa kukugqithisa okanye umbane omfutshane. Ii-MCB ziyafumaneka kwiindidi ezahlukeneyo zamandla ombane, okuvumela ukuba uhlengahlengiso luhlangabezane neemfuno ezahlukeneyo zombane. Zingaphinda zisetwe ngesandla emva kokukhubeka, nto leyo elula ukuyisebenzisa imihla ngemihla.
3. I-Residual current breaker (I-RCCB):
Ii-RCCB, ezaziwa ngokuba ziiResidual Current Devices (RCDs), zibonelela ngokhuseleko olongezelelweyo ngokufumanisa nokuthintela imisinga yokuvuza komhlaba. Le misinga idla ngokuvela xa umqhubi wesigaba esiphilayo enxibelelana ngempazamo nenxalenye eqhubayo yesixhobo sombane, njengentsimbi ebiyelweyo. I-RCCB ijonga umsinga ohamba ngeentambo eziphilayo nezingathathi cala kwaye iwa ngoko nangoko ukuba kufunyenwe ukungalingani. Oku kungalingani kunokubangelwa kukudibana komntu nesixhobo esineengxaki, nto leyo enciphisa umngcipheko wokutshayiswa ngumbane.
4. I-Residual current breaker (I-RCBO) kunye nokhuselo olugqithisileyo:
I-RCBO idibanisa iimpawu ze-MCB kunye ne-RCCB ukuze inike ukhuseleko oluphindwe kabini kwi-overcurrent kunye ne-residual current. Ezi zixhobo ziyindlela efanelekileyo xa kukho imfuneko yokukhusela isekethe ethile okanye isixhobo ngasinye kwiziphene zombane. I-RCBO ixhaphake kakhulu kwiindawo ezibalulekileyo ezifana neekhitshi kunye namagumbi okuhlambela apho ukudibana namanzi kwandisa umngcipheko weengozi zombane. Ukongeza, ii-RCBO zivumela iisekethe zomntu ngamnye ukuba zahlulwe ngexesha lokusombulula iingxaki okanye ukulungiswa ngelixa zigcina yonke into yokufaka isebenza.
5. Umahluko ophambili kunye neenzuzo:
a) I-MCB igxile ekuthinteleni ukugqithisa okubangelwa kukugqithisa okanye i-short circuit. Zilula ukuyisebenzisa, zinokusetwa kwakhona ngesandla, kwaye zisetyenziswa kakhulu ngenxa yokufikeleleka kwazo nokufumaneka kwazo.
b) I-RCCB ikhusela kwimisinga yokuvuza komhlaba enokubangelwa kukudibana kwabantu nezixhobo ezingasebenzi kakuhle okanye iingcingo ezonakeleyo. Ezi zixhobo zonyusa ukhuseleko kwaye zithintela iingozi zokutshayiswa ngumbane.
c) I-RCBO ineengenelo ze-MCB kunye ne-RCCB. Zibonelela ngokhuseleko lwamandla angaphezulu kombane kunye namanzi aseleyo kwaye zilungele iisekethe ezinobuthathaka okanye iindawo ezifuna amanyathelo angqongqo okhuseleko.
6. Khetha i-circuit breaker efanelekileyo:
Ukukhetha i-circuit breaker efanelekileyo kuxhomekeke kwizinto ezahlukeneyo, ezinje ngomthwalo wombane, uvakalelo lwe-circuit, kunye neemfuno ezithile zokhuseleko. Soloko unxibelelana nosomashishini wombane okanye unjineli wombane ofanelekileyo onokuvavanya iimfuno zakho aze acebise uhlobo olufanelekileyo lwe-circuit breaker kunye novavanyo lokufakela kwakho.
Isishwankathelo:
Ukuqonda umahluko phakathi kwee-circuit breakers ezahlukeneyo ezifana ne-RCCB, i-MCB kunye ne-RCBO kubalulekile ekugcineni ukhuseleko lombane kwiindawo zokuhlala, zorhwebo kunye nezoshishino. I-MCB ikhusela kwi-overcurrent, i-RCCB ikhusela kwi-earth leak currents, kwaye i-RCBO ibonelela ngokhuseleko olupheleleyo kwi-currents zombini. Ngokukhetha i-circuit breaker efanelekileyo kwinkqubo yakho yombane, unokuthintela iingozi ezinokubakho kwaye uqinisekise ukhuseleko lwabantu kunye nezixhobo.
Ixesha lokuthumela: Disemba-11-2023