Imisebenzi kunye nomahluko phakathi kwe-MCB kunye ne-RCCB

UkuqondaIi-MCBkwayeIi-RCCBIzinto ezibalulekileyo zoKhuseleko loMbane

Ukhuseleko lubaluleke kakhulu kwiifakelo zombane. 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 liphonononga imisebenzi, umahluko, kunye nokusetyenziswa kwee-miniature circuit breakers (MCBs) kunye nee-residual current current breakers (RCCBs), 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 kwisekethe idlula umda obekiweyo, i-MCB iyaphazamiseka, iphazamise ukuhamba kwe-current. Oku kuthintela umonakalo onokubakho kwizixhobo zombane kwaye kunciphisa umngcipheko wemililo ebangelwa kukugqithisa kweentambo.

Ii-Miniature circuit breakers (ii-MCB) zilinganiswa ngokwamandla ombane ngokuxhomekeke kumthamo wazo wokuthwala umbane, zihlala ziqala kwi-6A ukuya kwi-63A. Zenzelwe ukuseta ngokutsha ngesandla emva kokukhubeka, ziyindlela elula kwiinkqubo zombane zasekhaya nezamashishini. Zibalulekile ekukhuseleni iisekethe ngazinye, ezifana nokukhanyisa, ukufudumeza, kunye neendawo zokukhupha umbane, ukuqinisekisa ukuba ukusilela kwesekethe enye akuchaphazeli yonke inkqubo yombane.

Yintoni i-RCCB?

Isixhobo sokwaphula umbane esisele (RCCB), esaziwa ngokuba sisixhobo samandla esisele (RCD), senzelwe ukukhusela kwiimpazamo zomhlaba kunye nokutshotshozwa kombane. Sibona ukungalingani phakathi kwee-conductors eziphilayo nezingathathi cala, okunokwenzeka ngenxa yokusilela kokufakwa kombane okanye ukudibana ngengozi neendawo eziphilayo, okubangela 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 kuluhlu olubanzi lwezilinganiso zangoku, ngesiqhelo ukusuka kwi-30mA yokhuseleko lomntu ukuya kwi-100mA okanye kwi-300mA yokhuseleko lwezixhobo. Ngokungafaniyo nee-MCB, ii-RCCB aziboneleli ngokhuseleko olugqithisileyo okanye olufutshane, ngoko ke zihlala zisetyenziswa kunye nee-MCB kufakelo 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 ikhusela kwi-overload kunye ne-short circuit ngelixa i-RCCB ikhusela kwi-earth failure kunye ne-electric shock.
2. Indlela Yokusebenza: IiMinimally Circuit Breakers (MCBs) zisebenza ngokusekwe kumanqanaba angoku, ziyakhubeka xa umbane udlula umda obekiweyo. IiResidual Current Circuit Breakers (RCCBs) zisebenza ngokusekwe kukungalingani kwangoku, ziyakhubeka xa kukho umahluko phakathi kombane ophilayo nowe-neutral.
3. Ukuseta ngokutsha: I-MCB ingamiselwa kwakhona ngesandla emva kokuba ikhubekile, ngelixa i-RCCB ingadinga ukusekwa kwakhona ngesandla emva kokuba ingxaki isonjululwe.

Ukusetyenziswa kwe-MCB kunye ne-RCCB

Kwiindawo zokuhlala nezezorhwebo, ii-miniature circuit breakers (ii-MCB) kunye nee-residual current circuit breakers (ii-RCCB) zihlala zisetyenziswa kunye ukwakha inkqubo yokukhusela umbane eqinileyo. Umzekelo, kwikhaya eliqhelekileyo, ii-MCB zinokufakwa kwiisekethe zokukhanyisa kunye nombane, ngelixa ii-RCCB zingasetyenziswa kwiindawo ezinomngcipheko ophezulu njengezindlu zangasese kunye neekhitshi, apho amathuba okuba kubekho ukutshayiswa kombane aphezulu.

Kwimisebenzi yemizi-mveliso, ii-MCB kunye nee-RCCB zibalulekile ekukhuseleni oomatshini nezixhobo kwiingxaki zombane, ukuqinisekisa ukusebenza okukhuselekileyo kunye nokunciphisa ixesha lokungasebenzi.

Ukuququmbela

Ngamafutshane, ii-miniature circuit breakers (ii-MCB) kunye nee-residual current current breakers (ii-RCCB) zizinto ezibalulekileyo kwiinkqubo zokhuseleko lombane. Ii-MCB zikhusela kwi-overloads kunye nee-short circuit, ngelixa ii-RCCB zikhusela kwi-ground faults kunye ne-electrical shock. Ukuqonda imisebenzi kunye nokusetyenziswa kwezi zixhobo kubalulekile kuye nabani na obandakanyekayo ekufakweni okanye ekugcinweni kombane. Ngokudibanisa ii-MCB kunye nee-RCCB, singadala imeko-bume yombane ekhuselekileyo, sikhusele abantu kunye nepropathi kwiingozi ze-electrical faults.