Isihloko: Ukuqonda Ukubaluleka kweIzaphuli zeSekethe ezincinci (MCBs)kuKhuseleko loMbane
Yazisa:
Kwihlabathi lanamhlanje, umbane udlala indima ebalulekileyo kubomi bethu bemihla ngemihla.Nangona kunjalo, inokubangela iingozi ezininzi ukuba ayiphathwa kakuhle.Ke ngoko, kubalulekile ukuthatha amanyathelo okhuseleko asebenzayo ukukhusela abantu kunye nezixhobo kwiingozi zombane.Enye yezinto ezibalulekileyo zokuqinisekisa ukhuseleko lombane yiisaphuli sesekethe esincinci (MCB).Kule post yebhlog, sithatha ukuntywila nzulu kwihlabathi leIi-MCBs, ukubaluleka kwabo, kunye nendlela abanegalelo ngayo ekukhuseleni umbane.
1. Yintoni aisaphuli sesekethe esincinci (MCB)?
A i-breaker circuit encinci, edla ngokubizwa ngokuba yi-MCB, sisixhobo sombane esenzelwe ukukhusela isiphaluka kunye nezixhobo zayo ezixhunyiwe kwi-overcurrent.I-Overcurrent ingenzeka ngenxa yesiphaluka esifutshane okanye i-current eninzi ehamba ngokujikelezayo.I-MCB ibeka iliso kwi-current ejikelezayo kwisekethe kwaye ihambe ngokuzenzekelayo okanye ikhuphe ukunikezelwa kwamandla xa ibona i-overcurrent.
2. Kutheniabaphuli beesekethe ezincinciibalulekile kukhuseleko lombane?
2.1 Ukuthintelwa kwemililo yombane:
Imililo yombane ibangela umlinganiselo omkhulu wemililo yehlabathi.Iisekethe zombane ezinengxaki okanye ezigcwele kakhulu zihlala zibangela le mililo.MCByindlela yokuqala yokuzikhusela kwiziganeko ezinjalo.Xa i-overcurrent ihamba kwisiphaluka, i-breaker circuit encinci ihamba ngokukhawuleza, ikhuphe isiphaluka kwaye inqumle umbane.Le mpendulo ikhawulezileyo inqanda iingcingo ekutshiseni ngokugqithisileyo kwaye zibenakho ukuqala umlilo.
2.2 Ukhuseleko lwezixhobo zombane:
Umsinga ogqithisileyo ungonakalisa izixhobo zombane ezinovakalelo, nto leyo ekhokelela ekulungisweni okunexabiso eliphezulu okanye ukutshintshwa.Ii-MCBskhusela ezi zixhobo ngokuqhawula umbane xa kukho i-overcurrent.Ngokusebenza njengabalawuli beesekethe, bakhusela izixhobo kumonakalo oyindleko obangelwa kukuhla kwamandla ombane okanye iisekethe ezimfutshane.
2.3 Ukhuseleko lomntu oluphuculweyo:
Ukothuka kombane kubangela ingozi enkulu kubomi bomntu.Ii-MCBs zidlala indima ebalulekileyo ekunciphiseni umngcipheko weziganeko ezinjalo ngokuthintela ukuhamba ngokugqithisileyo ngoku kwiisekethe kunye nezixhobo zombane.Ukukhubeka kwisekethe kunokuthintela iingozi ezinokubakho kwaye kukhusele abantu kwiingozi zombane eziyingozi.
3. Iimpawu kunye neenzuzo zamaqhekeza amancinci amancinci:
3.1 Amanqaku angoku:
Ii-MCBszifumaneka kwiireyithingi ezahlukeneyo zangoku kwaye zingasetyenziswa kwiindidi ezahlukeneyo zeesekethe kunye nezicelo.Nangona kunjalo, ukulinganiswa kwangoku okufanelekileyo kufuneka kukhethwe ngokuhambelana nomthwalo wesekethe ukuqinisekisa ukukhuselwa okuphezulu kunye nokusebenza.
3.2 Indlela efanelekileyo yokuhamba:
I-MCB inendlela yohambo lwe-thermal kunye ne-magnetic trip mechanism.Indlela yohambo lwe-thermal ikhusela kwiimeko zokugcwala, iimeko apho umsinga ogqithisayo uhamba ixesha elide.Indlela yohambo lwemagnethi ibona iisekethe ezimfutshane ezibandakanya imisinga ephezulu kangangexesha elifutshane.
3.3 Ukusetha kwakhona ngokukhawuleza nangokulula:
Emva kokuba i-MCB ikhutshiwe ngenxa yesiganeko esigqithileyo okanye impazamo, inokuphinda ibekwe kwakhona ngokuhambisa i-toggle switch ukubuyisela kwi-ON isikhundla.Olu phawu luphelisa imfuneko yokutshintsha iifuse ngesandla kwaye lubonelela ngendlela efanelekileyo yokubuyisela amandla ngokukhawuleza.
4. Ufakelo kunye nokugcinwa kweziqhekeza zesekethe ezincinci:
4.1 Ufakelo lobuchwephesha:
Ukuqinisekisa ukusebenza okufanelekileyo kunye nokhuseleko lombane ngokubanziMCB, ukufakela kwayo kufuneka kuhlale kwenziwa ngumbane oqeqeshiweyo.Banolwazi oluyimfuneko lokuvavanya ngokuchanekileyo iimfuno zomthwalo wesekethe kwaye ukhethe kwaye ufake i-MCB efanelekileyo.
4.2 Ukuhlolwa rhoqo kunye novavanyo:
Ukuhlolwa rhoqo kunye nokugcinwa kweabaphuli beesekethe ezincincikubaluleke kakhulu ekuchongeni iingxaki ezinokubakho, ukuqinisekisa ukuthembeka kwazo kunye nokugcina ukusebenza kwazo okuphezulu.Inkqubo yovavanyo kufuneka ilandelwe ngamaxesha athile ukuqinisekisa ukukhubeka kwe-MCB phantsi kweemeko ezingaphaya kwamandla ombane.
ukuququmbela:
Iziqhekeza zesekethe ezincinci (MCBs)yinxalenye ebalulekileyo yeenkqubo zombane ezibonelela ngokhuseleko olubalulekileyo kwiingozi zombane.Ngokubhaqa kunye nokuvala umbane ngokukhawuleza xa kukho i-overcurrent, iziqhekeza ezincinci zesekethe zithintela imililo yombane, zikhusela izixhobo, kwaye zikhusela abantu kwiingozi zombane eziyingozi.Ukusebenziseka ngokulula, ukusetwa kwakhona okukhawulezileyo, kunye nokufumaneka kweereyithingi ezahlukeneyo zangoku kwenza ii-MCBs zibe lolona khetho lubalaseleyo lokugcina ukhuseleko lombane kwiindawo ezahlukeneyo zokuhlala, zorhwebo, kunye nezoshishino.Kubalulekile ukubeka phambili ukufakwa, ukuhlolwa kunye nokugcinwa kweIi-MCBsukuqinisekisa ukusebenza kwabo ngokupheleleyo kunye nokudala indawo yombane ekhuselekileyo kumntu wonke.
Ixesha lokuposa: Jul-11-2023