Yintoni i-RCBO kwaye isebenza njani?

I-RCBOsisishunqulelo se "overcurrent residual current circuit breaker" kwaye sisixhobo sokhuseleko sombane esibalulekileyo esidibanisa imisebenzi ye-MCB (i-miniature circuit breaker) kunye ne-RCD (isixhobo esiseleyo sangoku). Inika ukhuseleko kwiintlobo ezimbini zeempazamo zombane: i-overcurrent kunye ne-residual current (ekwabizwa ngokuba yi-leakage current).

Ukuqonda ukuba njaniI-RCBOisebenza, masiqale sijonge ngokukhawuleza ezi ntlobo zimbini zokusilela.

Ukugqithiswa kwe-Overcurrent kwenzeka xa umsinga omninzi uqukuqela kwisekethe, enokubangela ukushisa kakhulu kwaye mhlawumbi nomlilo. Oku kunokwenzeka ngenxa yezizathu ezahlukeneyo, ezifana nesekethe emfutshane, i-circuit overload, okanye impazamo yombane. Ii-MCBs zenzelwe ukufumanisa nokuphazamisa ezi mpazamo zidlulayo ngokukhubeka isekethe ngoko nangoko xa umsinga udlula umda omiselweyo.

Ngakolunye uhlangothi, i-residual current okanye ukuvuza kwenzeka xa isekethe iphazamisekile ngenxa yocingo olubi okanye ingozi ye-DIY. Umzekelo, ungagqobhoza ngempazamo kwintambo ngelixa ufaka ihuku yemifanekiso okanye uyinqumle ngomtshini wengca. Kule meko, umsinga wombane unokuvuza kwindawo engqongileyo, oko kunokubangela ukothuka kombane okanye umlilo. Ii-RCDs, ezikwabizwa ngokuba zii-GFCIs (Ii-Ground Fault Circuit Interrupters) kwamanye amazwe, ziyilelwe ukukhangela ngokukhawuleza imisinga yokuvuza nokuhamba kwesekethe kwii-milliseconds ukuthintela nayiphi na ingozi.

Ngoku, makhe sijonge ngakumbi ukuba i-RCBO idibanisa njani amandla e-MCB kunye ne-RCD. I-RCBO, njenge-MCB, ifakwe kwi-switchboard okanye iyunithi yabathengi. Inemodyuli ye-RCD eyakhelweyo ehlala ibeka iliso ngokuqhubekayo kwisekethe.

Xa impazamo ye-overcurrent isenzeka, icandelo le-MCB ye-RCBO libona umsinga ogqithisileyo lize lihambe isekethe, ngaloo ndlela liphazamise unikezelo lombane kwaye lithintele nayiphi na ingozi enxulumene nokugcwala okanye isekethe emfutshane. Ngexesha elifanayo, imodyuli ye-RCD eyakhelwe-ngaphakathi ibeka iliso kwibhalansi yangoku phakathi kweengcingo eziphilayo kunye nezingathathi hlangothi.

Ukuba kukho nayiphi na intsalela yangoku ifunyenwe (ebonisa impazamo yokuvuza), into ye-RCBO ye-RCBO ngokukhawuleza ikhubaza isekethe, ngaloo ndlela iqhawula unikezelo lombane. Le mpendulo ekhawulezileyo iqinisekisa ukuba ukutshitshiswa kombane kuyaphetshwa kwaye imililo enokuthi ithintelwe, ukunciphisa umngcipheko weempazamo zeengcingo okanye umonakalo wekhebula ngengozi.

Kuyafaneleka ukuqaphela ukuba i-RCBO ibonelela ngokhuseleko lwesekethe yomntu ngamnye, oku kuthetha ukuba ikhusela iisekethe ezithile kwisakhiwo esizimeleyo enye kwenye, ezifana neesekethe zokukhanyisa okanye iindawo zokuphuma. Olu khuselo lwemodyuli luvumela ukuchongwa kwempazamo ekujoliswe kuyo kunye nokwahlukaniswa, ukunciphisa impembelelo kwezinye iisekethe xa kusenzeka impazamo.

Ukushwankathela, i-RCBO (i-overcurrent residual current circuit breaker) sisixhobo esibalulekileyo sokhuseleko lombane esidibanisa imisebenzi ye-MCB kunye ne-RCD. Inempazamo yangoku kunye nemisebenzi eseleyo yokhuseleko lwangoku ukuqinisekisa ukhuseleko lomntu kunye nokuthintela iingozi zomlilo. Ii-RCBOs zidlala indima ebalulekileyo ekugcineni ukhuseleko lombane ezindlini, kwizakhiwo zorhwebo nakwiimeko zoshishino ngokukhubeka ngokukhawuleza kwiisekethe xa kubhaqwe nasiphi na isiphoso.