Imisebenzi kunye nomahluko phakathi kwe-MCB kunye ne-RCCB

UkuqondaIi-MCBkwayeIi-RCCBIzinto ezibalulekileyo zoKhuseleko loMbane

Ukhuseleko lubaluleke kakhulu kwihlabathi lokufakelwa kombane. Ii-Miniature circuit breakers (MCBs) kunye nee-residual current circuit breakers (RCCBs) zizinto ezimbini ezibalulekileyo zokuqinisekisa ukhuseleko lombane. Ezi zixhobo zimbini zineendlela ezahlukeneyo zokusetyenziswa kodwa zihlala zisetyenziswa kunye ukubonelela ngokhuseleko olupheleleyo kwiimpazamo zombane. Eli nqaku lijonga ngokunzulu imisebenzi, umahluko, kunye nokusetyenziswa kwee-miniature circuit breakers (MCBs) kunye nee-residual current current breakers (RCCBs), kwaye ligxininisa ukubaluleka kwazo kwiinkqubo zombane zanamhlanje.

Yintoni i-MCB?

I-miniature circuit breaker (MCB) sisitshixo esizenzekelayo esisetyenziselwa ukukhusela iisekethe zombane kwi-overloads kunye nee-short circuits. Xa i-current ehamba kwi-circuit idlula umda omiselweyo, i-MCB iyawa kwaye inqumle umbane. Oku kuthintela ubushushu obugqithisileyo kunye neengozi zomlilo ezinokubakho ezibangelwa yi-current egqithisileyo. I-current elinganisiweyo ye-MCB ixhomekeke kumthamo wayo wokuthwala, odla ngokuba phakathi kwe-6A kunye ne-63A, kwaye yenzelwe ukuba isebenze ngokukhawuleza ukunciphisa umonakalo kwizixhobo kunye neentambo.

Iziphuli zesekethe ezincinci (ii-MCB)zibalulekile kwiindawo zokuhlala, zorhwebo, kunye nezoshishino. Zihlala zisetyenziswa kwiibhodi zokutshintsha umbane ukukhusela iisekethe ngazinye, ukuqinisekisa ukuba ukusilela kwesekethe enye akuchaphazeli yonke inkqubo yombane. Ii-Miniature circuit breakers zinokuphinda zisetyenziswe, ngoko ke umbane unokubuyiselwa ngokulula emva kokuba impazamo ilungisiwe, nto leyo eyenza ukuba zibe lukhetho olulula lokukhusela umbane.

Yintoni i-RCCB?

Isixhobo sokwaphula umbane esisele (RCCB), esaziwa ngokuba sisixhobo samandla esisele (RCD), senzelwe ukukhusela kwiimpazamo zomhlaba kunye nokutshotshozwa kombane. Sibona ukungalingani phakathi kweengcingo eziphilayo nezingathathi cala, okunokwenzeka xa ubushushu bungaphumeleli okanye xa ukudibana ngengozi neendawo eziphilayo kubangela ukuba umbane uvuza emhlabeni. Xa oku kungalingani kufunyenwe, i-RCCB iyawa kwaye iwaqhawule umbane, nto leyo enciphisa kakhulu umngcipheko wokutshotshozwa kombane kunye nomlilo.

Ii-RCCB zifumaneka kumanqanaba ahlukeneyo obuthathaka, ngokuqhelekileyo ukusuka kwi-30mA yokhuseleko lomntu ukuya kwi-100mA okanye i-300mA yokhuseleko lwezixhobo. Ukukhetha ubuthathaka kuxhomekeke kwimeko yesicelo kunye nenqanaba lokhuseleko elifunekayo. Umzekelo, kwindawo yokuhlala, i-30mA RCCB idla ngokusetyenziselwa ukukhusela abantu kwi-electrical shock, ngelixa kwizicelo zoshishino, i-RCCB enomlinganiselo ophezulu wombane ingasetyenziselwa ukukhusela izixhobo.

I-MCB vs RCCB: Umahluko oPhambili

Nangona zombini ii-miniature circuit breakers (ii-MCB) kunye nee-residual current circuit breakers (ii-RCCB) zibalulekile kukhuseleko lombane, zenza imisebenzi eyahlukeneyo. Umahluko ophambili usezindleleni zazo zokukhusela:

- I-MCB: Ikhusela kwi-overload kunye ne-short circuit. Ayiboneleli ngokhuseleko lwe-ground fault okanye i-electrical shock.
- I-RCCB: Ikhusela kwimpazamo yomhlaba kunye nokutshayiswa kombane. Ayiboneleli ngokhuseleko olugqithisileyo okanye olufutshane.

Ngenxa yolu mahluko, ii-miniature circuit breakers (ii-MCB) kunye nee-residual current circuit breakers (ii-RCCB) zihlala zisetyenziswa kunye kufakelo lombane. Olu dibaniso lubonelela ngokhuseleko olupheleleyo, luqinisekisa ukhuseleko lweenkqubo zombane kunye nabasebenzisi.

Ukusetyenziswa kwe-MCB kunye ne-RCCB

Kwiindawo zokuhlala, ii-miniature circuit breakers (ii-MCB) zihlala zisetyenziselwa ukukhusela izibane kunye neesekethe zamandla, ngelixa ii-residual current circuit breakers (ii-RCCB) zifakelwa kwiindawo ezinomngcipheko ophezulu wokutshayiswa ngumbane ukuze kuphuculwe ukhuseleko, njengezindlu zangasese kunye neekhitshi. Kwiindawo zorhwebo nezemizi-mveliso, zombini ezi zixhobo zibalulekile ekukhuseleni oomatshini nasekuqinisekiseni ukhuseleko lwabasebenzi.

Ngamafutshane, ii-miniature circuit breakers (ii-MCB) kunye nee-residual current circuit breakers (ii-RCCB) ziyinxalenye ebalulekileyo yenkqubo yokhuseleko lombane. Ukuqonda imisebenzi kunye nezicelo zazo kubalulekile kuye nabani na obandakanyekayo ekufakweni okanye ekugcinweni kombane. Ngokudibanisa ii-miniature circuit breakers (ii-MCB) kunye nee-residual current current breakers (ii-RCCB), umnatha wokhuseleko onamandla unokwakhiwa ukukhusela kwiingozi ezahlukeneyo zombane, ukuqinisekisa imeko-bume ekhuselekileyo kuye wonke umntu.