Isikhuselo samandla aseleyo: ukhetho lokuqala lokusetyenziswa kombane ngokukhuselekileyo

UkuqondaIi-RCCB: Inxalenye Ebalulekileyo Yokhuseleko Lombane

Kwihlabathi lokhuseleko lombane, i-residual current current breaker (RCCB) sisixhobo esibalulekileyo esenzelwe ukukhusela abantu kunye nempahla kwiingozi zombane. Njengoko sijonga nzulu ubunzima be-RCCB, kuyacaca ukuba esi sixhobo sidlala indima ebalulekileyo ekufakweni kombane kwanamhlanje ukuqinisekisa ukhuseleko kunye nokuthembeka.

Yintoni i-RCCB?

I-RCCB, eyaziwa ngokuba sisixhobo samandla asele (RCD), sisixhobo sombane esiqhawula isekethe xa sibona ukungalingani kumbane phakathi kweentambo eziphilayo nezingathathi cala. Oku kungalingani kunokubangelwa zizizathu ezininzi, ezinje ngocingo olungalunganga, ukusilela kokufakelwa kombane, okanye umntu ochukumisa intambo ephilayo ngempazamo. I-RCCB isoloko ijonga umbane ohamba kwisekethe, kwaye ukuba ibona umbane ovuzayo (ohlala uphantsi njenge-30 mA), iyawa kwaye inqumle umbane kwii-milliseconds. Le mpendulo ikhawulezayo ibalulekile ekuthinteleni ukutshayiswa kombane kunye nokunciphisa umngcipheko wemililo yombane.

Isebenza njani i-RCCB?

Umgaqo wokusebenza we-RCCB usekelwe kumgaqo wokwahluka kwamandla ombane. Uqulathe isiseko sentsimbi kunye neekhoyili ezimbini: enye yentambo ephilayo kunye nenye yentambo engathathi cala. Phantsi kweemeko eziqhelekileyo, imisinga ehamba ngeengcingo ezimbini iyalingana kwaye amasimi emagnethi aveliswa ziikhoyili ayarhoxisana. Nangona kunjalo, ukuba kukho isiphene, njengombane ovuzayo ohamba emhlabeni, ibhalansi iyatshatyalaliswa, nto leyo ebangela umahluko kumasimi emagnethi. Oku kungalingani kubangela ukuba i-RCCB ikhubeke, iphule isekethe kwaye ithintele ingozi enokubakho.

Iintlobo ze-RCCB

Kukho iintlobo ezahlukeneyo ze-RCCB, nganye inenjongo ethile. Ezona ntlobo zixhaphakileyo ziquka:

1. I-RCCB enezibonda ezimbini: Isetyenziswa kwiisekethe zesigaba esinye, ezihlala zifumaneka kwiindawo zokuhlala.
2. I-RCCB enezibonda ezi-4: Yenzelwe iisekethe zezigaba ezintathu, ezisetyenziswa kakhulu kwizicelo zoshishino nezorhwebo.
3. Uhlobo lwe-AC RCCB: ibona umsinga osele utshintshisana (AC).
4. Uhlobo A RCCB: ingabona i-AC kunye nomsinga osele we-DC oshukumisayo, ofanelekileyo kwiisekethe zezixhobo ze-elektroniki.

Ukubaluleka kwe-RCCB kuKhuseleko loMbane

Ukubaluleka kwee-RCCB akunakugxininiswa kakhulu. Zibalulekile ekuqinisekiseni ukhuseleko lwezixhobo zombane emakhayeni, kwiiofisi nakwiindawo zoshishino. Ngokukhusela kwi-electrical shock, ii-RCCB zinceda ekulondolozeni ubomi, ingakumbi kwiindawo ezimanzi ezifana nezindlu zangasese kunye neekhitshi. Ukongeza, zidlala indima ebalulekileyo ekuthinteleni imililo yombane ebangelwa ziintambo okanye izixhobo ezingasebenzi kakuhle.

Ukufakelwa kunye nokugcinwa

Ukuze zisebenze kakuhle, ii-RCCB kufuneka zifakwe yingcali yombane enolwazi oluqondayo iimfuno ezithile zenkqubo yombane. Uvavanyo nokugcinwa rhoqo kubalulekile ukuqinisekisa ukusebenza kakuhle kwezixhobo. Uninzi lwee-RCCB zixhotyiswe ngeqhosha lokuvavanya elivumela umsebenzisi ukuba ajonge ukusebenza kwazo rhoqo. Kucetyiswa ukuba i-RCCB ivavanywe ubuncinane kanye ngenyanga ukuqinisekisa ukuba ikwimeko entle yokusebenza.

Kufuphi

Ngamafutshane, i-residual current circuit breaker (RCCB) yinxalenye ebalulekileyo yenkqubo yokhuseleko lombane. Ngenxa yokukwazi kwayo ukubona nokuphendula ukungalingani kombane, sisixhobo esibalulekileyo ekukhuseleni ubomi kunye nepropathi kwiingozi zombane. Ukubaluleka kwee-RCCB kuya kuqhubeka kukhula njengoko ubuchwepheshe buqhubela phambili kunye neenkqubo zombane ziba nzima ngakumbi, nto leyo egxininisa ngakumbi imfuneko yokwazi nokuqonda esi sixhobo sibalulekileyo sokhuseleko. Nokuba kukwiindawo zokuhlala, zorhwebo okanye kwimizi-mveliso, ii-RCCB zihlala zisisiseko sokhuseleko lombane, ziqinisekisa uxolo lwengqondo kubasebenzisi kuyo yonke indawo.