Ukuqonda uKwaphulwa kwamandla e-MCBs

Ehlabathini lokhuseleko lombane, iinkcukacha ezincinci zihlala zenza umahluko omkhulu. Enye yezo nkcukacha—ehlala ingaqondwa kakuhle okanye ingahoywa—kukuqhawuka kwamandla e-MCBs. Ukuba usebenza kufakelo, kugcino, okanye kuyilo lwesixokelelwano, ukuqonda le metric engundoqo kunokuthintela umonakalo omkhulu wesixhobo—okanye okubi ngakumbi, iingozi zombane.

Yintoni Ukuqhawula Umthamo weMCBNgokwenene Uthetha ukuthini?

Ukubeka nje, amandla okuphulwa kwe-MCB (i-Miniature Circuit Breaker) ibhekisela kubuninzi bangoku obunokuphazamisa ngokukhuselekileyo ngaphandle kokwenza umonakalo ngokwawo okanye inkqubo yombane. Yikhono le-breaker circuit ukumisa ukuhamba kombane ngexesha lesiphaluka esifutshane okanye imeko yesiphoso.

Xa kuvele uqhaqho okanye impazamo, i-MCB kufuneka ithathe amanyathelo ngoko nangoko. Ukuba umsinga ugqithise kumlinganiselo wesaphuli esilinganiselweyo sokwaphuka, isixhobo sinokungaphumeleli-okunokukhokelela kwiziphumo eziyingozi ezifana nomlilo, i-arcing, okanye ukusilela kwesixhobo. Yiyo loo nto ukuqonda kunye nokukhetha ngokuchanekileyo umthamo wokuqhawula kubalulekile.

Ukubaluleka kokuKhetha iSakhono sokuQhawuka esiLungileyo

1. Ukhuseleko kuqala

I-MCB enomthamo ongonelanga wokuphuka ayinakukwazi ukusingatha i-current fault current, ibeka ingozi kumonakalo kwisekethe kunye nabantu abasebenzayo. Ukukhetha okufanelekileyo kuqinisekisa ukuba isixhobo siya kuhamba ngokufanelekileyo ngaphandle kokuqhuma okanye ukunyibilika.

2. Ukuthotyelwa kweMigangatho yoMbane

Iikhowudi zombane kwiingingqi ezininzi zigunyazisa ukuba amandla okuqhawuka kwee-MCBs kufuneka abe mkhulu okanye alingane nowona mgangatho uphezulu we-short-circuit current kwindawo yofakelo. Ukungaphumeleli ukuhlangabezana nale migangatho kunokubangela ukungathotyelwa kunye nemiba enokubakho yezomthetho.

3. Ukuthembeka kweNkqubo

Ii-MCB ezilinganiswe ngokuchanekileyo azikhuseli nje iintambo kunye nezixhobo zombane kodwa zikwanegalelo kuzinzo jikelele lwenkqubo yombane. Ukuphumla ngenxa yezaphuli zemilinganiselo engafanelekanga kunokukhokelela kwilahleko yemveliso kunye nokulungiswa okuxabisa kakhulu.

Izinto Eziphembelela Ukwaphulwa Kwesakhono

1. Indawo yokuFakela

Inqanaba lesiphoso kwindawo apho i-MCB ifakwe khona idlala indima enkulu. Ufakelo lwasezidolophini okanye ezo zikufutshane nomthombo wamandla zinokuba neempazamo eziphezulu.

2. Uhlobo lwesicelo

Ubume bemizi-mveliso ngokuqhelekileyo bufuna ii-MCB ezikumgangatho ophezulu kuneendawo zokuhlala okanye ezilula zorhwebo izicelo ngenxa yomthwalo onzima kunye neenkqubo ezintsonkothileyo.

3. Uyilo lweNkqubo

Uyilo lwenethiwekhi ngokubanzi-kuquka ubungakanani bekhebula, umthamo we-transformer, kunye nomgama ukusuka kumthombo wokubonelela-zonke zinokuchaphazela amandla okuphulwa okufunekayo kwe-MCB.

Indlela yokumisela iSakhono sokuQhawuka esiLungileyo kwiiMfuno zakho

Ukukhetha umthamo ochanekileyo wokuphulwa kwe-MCB kubandakanya ukuvavanya impazamo ekhoyo ngoku kwindawo yofakelo. Oku kuhlala kubalwa ngokusekwe kuthintelo lwenkqubo okanye kungqinisiswe kusetyenziswa idatha evela kumnikezeli oluncedo.

Nalu olunye uqikelelo oluqhelekileyo lwesakhono onokudibana nalo:

I-6kA (i-6000 Amps) - Eqhelekileyo kwiindawo zokuhlala okanye ezinobungozi obuphantsi kwezorhwebo

I-10kA (i-10000 Amps) - Ilungele ukuseta urhwebo oluphezulu okanye olulula lwemizi-mveliso

I-16kA nangaphezulu-Iyafuneka kwiindawo zemizi-mveliso ezinobunzima obunzima okanye ufakelo olunomthamo ophezulu wesekethe

Soloko udibana nenjineli yombane eqeqeshiweyo ukuqinisekisa ukubala okufanelekileyo kunye nokukhetha.

ULondolozo kunye noVavanyo lweXesha: Musa ukuLitsiba

Kwanezona MCB zikumgangatho ophezulu zifuna ukuhlolwa ngamaxesha athile. Uthuli, ukubola, okanye ukudinwa kwangaphakathi kunokunciphisa ukusebenza kwazo ngokuhamba kwexesha. Uvavanyo oluqhelekileyo kunye nokugcinwa kokuthintela kuqinisekisa ukuba amandla okuphulwa kwe-MCBs ahlala eqinile kwaye ethembekileyo.

Iingcamango zokugqibela: Yenza ukhetho olunolwazi lokukhusela inkqubo yakho

Ukuqhawuka komthamo we-MCB ayisiyonto nje ingcaciso yobugcisa-yinto ebalulekileyo ekuqinisekiseni ukhuseleko, ukusebenza, kunye nokuthotyelwa kuyo nayiphi na inkqubo yombane. Ukuthatha ixesha lokuqonda kunye nokusebenzisa ngokufanelekileyo le ngcamango kunokonga imali, ixesha lokuphumla, kunye nobomi.

Ngaba ufuna isikhokelo seengcali ekukhetheni ukhuseleko lwesekethe olufanelekileyo kwiprojekthi yakho? Finyelela kuJIEYUNGnamhlanje kwizisombululo ezithembekileyo ezilungiselelwe iimfuno zakho.