I-MCB vs. RCCB: Ukhuseleko lweSekethe yoKhuseleko

UkuqondaI-MCBkwayeI-RCCB: Izinto ezibalulekileyo zokwakha ukhuseleko lombane

Kwicandelo lokufakelwa kombane, ukhuseleko lubaluleke kakhulu. Izinto ezimbini ezibalulekileyo ezidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lombane yiMiniature Circuit Breaker (MCB) kunye neResidual Current Circuit Breaker (RCCB). Ezi zixhobo zimbini zisebenza ngeenjongo ezahlukeneyo kodwa zihlala zisetyenziswa kunye ukubonelela ngokhuseleko olupheleleyo kwiimpazamo zombane. Eli nqaku libonelela ngokujonga ngokunzulu imisebenzi, umahluko, kunye nokusetyenziswa kweeMCB kunye neeRCCB, ligxininisa ukubaluleka kwazo kwiinkqubo zombane zanamhlanje.

Yintoni i-miniature circuit breaker?

I-miniature circuit breaker (MCB) sisitshixo esizenzekelayo esikhusela iisekethe kwiingxinano ezinkulu kunye neesekethe ezimfutshane. Xa umbane ohamba kwisekethe udlula umda obekiweyo, i-MCB iyaphazamiseka, iphazamise ukuhamba kombane. Oku kuthintela umonakalo onokubakho kwizixhobo kwaye kunciphisa umngcipheko womlilo obangelwa kukugqithisa kweengcingo.

Uvavanyo lwe-MCB lusekelwe kumthamo wayo wokuthwala okwangoku, oqhele ukuba phakathi kwe-6A ukuya kwi-63A. Zenzelwe ukuseta ngokutsha ngesandla emva kokukhubeka, nto leyo eyenza ukuba zibe lukhetho olulula kwiinkqubo zombane zasekhaya nezamashishini. Ii-MCB zibalulekile ekukhuseleni iisekethe ngazinye ezifana nokukhanyisa, ukufudumeza kunye neesokhethi zamandla, ukuqinisekisa ukuba naluphi na uphazamiso kwisekethe enye aluyichaphazeli yonke inkqubo yombane.

Yintoni i-RCCB?

I-Residual current breakers (RCCB), eyaziwa ngokuba zizixhobo zangoku ezisele (RCD), zenzelwe ukukhusela kwi-electrical shock kunye nemililo yombane ebangelwa ziimpazamo zomhlaba. Ibona ukungalingani phakathi kweentambo eziphilayo nezingathathi cala, okunokwenzeka xa i-current ivuza emhlabeni, nto leyo ebonisa impazamo enokubakho. Ukuba i-RCCB ibona umahluko kwindlela i-current flow ngayo, iyawa ngaphakathi kwee-milliseconds kwaye iphule i-circuit, nto leyo enciphisa kakhulu umngcipheko we-electrical shock.

Ii-RCCB zifumaneka ngemilinganiselo eyahlukeneyo, ngokuqhelekileyo ziqala kwi-30mA yokuzikhusela komntu ukuya kwi-100mA okanye kwi-300mA yokukhusela umlilo. Ngokungafaniyo nee-MCB, ii-RCCB aziboneleli ngokhuseleko olugqithisileyo okanye olufutshane; ngoko ke, zihlala zisetyenziswa kunye nee-MCB ukuqinisekisa ukhuseleko olupheleleyo lombane.

Umahluko oPhambili phakathi kwe-MCB kunye ne-RCCB

Nangona zombini ii-MCB kunye nee-RCCB zibalulekile kukhuseleko lombane, zinemisebenzi eyahlukileyo:

1. Uhlobo loKhuseleko: I-MCB ibonelela ngokhuseleko lokugqithisela kunye nolwesekethe elifutshane, i-RCCB ibonelela ngokhuseleko lokutshayiswa komhlaba kunye nombane.

2. Indlela Yokusebenza: I-miniature circuit breaker isebenza ngokwenqanaba langoku kwaye iyahamba xa umbane udlula umda obekiweyo. Ngokwahlukileyo koko, i-RCCB isebenza ngomgaqo wokulinganisela umbane phakathi kweengcingo eziphilayo nezingathathi cala.

3. Indlela yokuseta kwakhona: I-MCB ingasekwa kwakhona ngesandla emva kokukhubeka, ngelixa i-RCCB inokufuna ukujongwa nokulungiswa kwengxaki ngaphambi kokuba isetyenziswe kwakhona.

4. Ukusetyenziswa: Ii-MCB zisetyenziswa kakhulu ukukhusela iisekethe kwiindawo zokuhlala nezorhwebo, ngelixa ii-RCCB zibalulekile kwiindawo ezinomngcipheko omkhulu wokoyiswa ngumbane njengezindlu zangasese, iikhitshi kunye nokufakelwa kwangaphandle.

Ukubaluleka kokusebenzisa zombini i-MCB kunye ne-RCCB

Ukuze kubekho ukhuseleko oluphezulu lombane, kuyacetyiswa ukuba kusetyenziswe i-MCB kunye ne-RCCB ngokulandelelana. I-MCB ibonelela ngokhuseleko lokugqithisa kunye nolwesekethe elifutshane, i-RCCB ibonelela ngokhuseleko lokuphazamiseka komhlaba kunye nombane. Olu dibaniselwano luqinisekisa ukuba iinkqubo zombane zikhuselekile kwiingozi ezahlukeneyo ezinokubakho, ngaloo ndlela zonyusa ukhuseleko lwabasebenzisi kunye nepropathi.

Ngamafutshane, ukuqonda indima yee-MCB kunye nee-RCCB kubalulekile kuye nabani na obandakanyekayo ekufakweni okanye ekugcinweni kombane. Ngokudibanisa zombini ezi zixhobo kwinkqubo yombane, umngcipheko weengozi zombane ungancitshiswa kakhulu, kuqinisekiswa imeko-bume ekhuselekileyo kuye wonke umntu. Nokuba kukwiindawo zokuhlala, zorhwebo okanye zoshishino, ukuhlanganiswa kwee-MCB kunye nee-RCCB yinxalenye ebalulekileyo yeendlela zokhuseleko zombane zanamhlanje.