Isihloko: Ukubaluleka kunye nomsebenzi weiziphuli zesekethe ezincinci
yazisa:
Iziphuli zesekethe ezincinci (ii-MCB)zidlala indima ephambili ekuqinisekiseni ukhuseleko kunye nokuthembeka kweenkqubo zombane. Ezi zixhobo ziye zaba yinxalenye ebalulekileyo yokufakelwa kombane kwanamhlanje, ezisetyenziselwa ukuthintela iimpazamo zombane kunye nokunciphisa umonakalo onokubakho. Eli nqaku liphonononga ukubaluleka kunye nomsebenzi wezi zikhuselo ezincinci, libonisa ukubaluleka kwazo kwicandelo lobunjineli bombane.
1. Qonda ii-miniature circuit breakers:
A iqhekeza lesekethe elincinci, idla ngokufinyezwa njengeI-MCB, sisitshixo sombane esizenzekelayo esenzelwe ukukhusela iisekethe zombane kwi-overcurrent kunye neesekethe ezimfutshane. Ezi zixhobo zihlala zifakwa kwiibhodi zokutshintsha, izixhobo zabathengi kunye neebhokisi zefuse njengomgca wokuqala wokuzikhusela kwimiqobo yombane.
2. Iimpawu eziphambili kunye namacandelo:
Ii-MCBzaziwa ngobukhulu bazo obuncinci, zihlala kwindawo enye ngaphakathi kwi-switchboard. Nangona kunjalo, ubukhulu bazo obuncinci abubalulekanga ekugcinweni kokhuseleko lombane. Izinto eziphambili ze-I-MCBziquka indlela yokutshintsha, oonxibelelwano kunye nendlela yokutshintsha.
Indlela yokutshintsha ivumela ukusebenza ngesandla, okwenza umsebenzisi akwazi ukuvula okanye ukuvala isekethe ngesandla. Kwelinye icala, oonxibelelwano banoxanduva lokuqhuba nokuphazamisa umsinga ohamba kwisekethe. Okokugqibela, indlela yokutshintsha ibona umsinga ogqithisileyo okanye omfutshane kwaye ibangeleI-MCBukuvula isekethe, ngaloo ndlela kukhusela inkqubo.
3. Ukhuseleko olugqithisileyo:
Omnye wemisebenzi ephambili yeI-MCBkukuthintela ukugqithisa kombane. Ukugqithisa kombane kwenzeka xa umbane omninzi uhamba kwisekethe kunomthamo wayo olinganiselweyo, nto leyo enokukhokelela ekutshiseni kakhulu kunye nomonakalo onokwenzeka kwiindawo zombane.Ii-MCBukuphendula kule meko ngokuphazamisa ngoko nangoko isekethe yombane, ngaloo ndlela kuthintelwe ubushushu obugqithisileyo nokunciphisa umngcipheko wemililo yombane.
4. Ukhuseleko lwesekethe emfutshane:
Enye indima ebalulekileyoI-MCBkukuthintela i-short circuit. I-short circuit yenzeka xa uqhagamshelo olungengozi (oludla ngokuba ngenxa yokungasebenzi kakuhle kwe-wiring okanye ukungasebenzi kakuhle kwe-insulation) lubangela ukuba umbane ogqithisileyo ugeleze kwi-circuit. I-short circuit inokubangela umonakalo omkhulu kwisixhobo kwaye inokubangela nomlilo. Ixesha lokuphendula ngokukhawuleza le-MCB liyenza ikwazi ukubona ii-short circuit kwaye iphazamise i-circuit ngaphambi kokuba kwenzeke nawuphi na umonakalo omkhulu.
5. Umahluko kwi-fuse:
Nangona zombini ii-MCB kunye neefusi zikhusela kwiimpazamo zombane, kukho umahluko omkhulu phakathi kwezi zimbini. Iifusi zenziwe ngeengcingo ezincinci okanye iziqwenga zesinyithi ezinyibilikayo xa umsinga omninzi uphuma, ziqhekeza umjikelo. Nje ukuba ifusi ivuthuze, kufuneka itshintshwe. Ngokwahlukileyo koko, ii-MCB azidingi kutshintshwe emva kokukhubeka. Endaweni yoko, zinokuphinda zisetyenziswe ngokulula emva kokuba ukusilela kweengcambu kuphandwe kwaye kusonjululwe, nto leyo eyenza kube lula kwaye kube neendleko eziphantsi ekuhambeni kwexesha.
6. Ukukhetha kunye noCalucalulo:
Kwiinkqubo zombane ezintsonkothileyo apho kukho iindlela ezininzi zombaneIi-MCBXa zifakelwe ngochungechunge, iingcamango zokukhetha kunye nocalucalulo ziba zibalulekileyo. Ukukhetha kubhekisa kubuchule be-MCB bokwahlula isekethe enesiphene ngaphandle kokuphazamisa yonke inkqubo. Ukwahlulahlula, kwelinye icala, kuqinisekisa ukuba i-MCB ekufutshane nesiphako iqala kuqala, ngaloo ndlela inciphisa ukuphazamiseka kofakelo. Ezi mpawu zivumela impendulo ejoliswe kuyo kwiintsilelo zombane, ukuqinisekisa ukuqhubeka kweenkonzo ezibalulekileyo ngelixa kufunyanwa kwaye kulungiswa unobangela wokusilela.
ukuququmbela:
Iziphuli zesekethe ezincinciNgokungathandabuzekiyo ziyinxalenye ebalulekileyo yeziseko zombane zanamhlanje. Ngokubonelela ngokhuseleko olugqithisileyo nolwesekethe emfutshane, ii-MCB zinceda ekukhuseleni izixhobo, ukunciphisa umonakalo kunye nokuthintela imililo yombane. Ubungakanani bazo obuncinci, ukulula kokusetyenziswa, kunye nokukwazi ukuseta kwakhona emva kohambo kuzenza zibe yindlela engabizi kakhulu kunee-fuse zemveli. Kubalulekile ukukhumbula ukuba ukufakwa ngokufanelekileyo kunye nokugcinwa rhoqo kwee-MCB kubalulekile kwinkqubo yombane esebenzayo nethembekileyo. Ngokuqonda ngokufanelekileyo nokusebenzisa ii-miniature circuit breakers, sinokuphucula ukhuseleko kunye nokusebenza kakuhle kokufakelwa kombane.
Ixesha lokuthumela: Agasti-07-2023