Abaphuli beesekethe kunye neeRCDUkuqonda Indima Yabo Kukhuseleko Lombane
Kwihlabathi lokhuseleko lombane, izinto ezimbini ezibalulekileyo zihlala zidlala indima: ii-circuit breakers kunye nezixhobo zangoku ezisele (ii-RCD). Nangona zombini zenzelwe ukukhusela ii-circuit kunye nokuthintela iingozi, zisebenza ngendlela eyahlukileyo kwaye zenzelwe imisebenzi ethile. Ukuqonda indima yee-circuit breakers kunye nee-RCD kubalulekile kuye nabani na obandakanyekayo ekufakweni, ekugcinweni okanye ekukhuselekeni kombane.
Yintoni i-circuit breaker?
I-circuit breaker sisitshixo sombane esizenzekelayo esenzelwe ukukhusela i-electrical circuit kumonakalo obangelwa kukugqithisa okanye i-short circuit. Xa umbane ohamba kwi-circuit udlula inqanaba elimiselweyo, i-circuit breaker iphazamisa ukuhamba kombane, nto leyo evula i-circuit ngempumelelo. Eli nyathelo likhusela inkqubo yombane kunye nezixhobo ezidityanisiweyo ngokuthintela ubushushu obugqithisileyo kunye nomlilo onokubakho.
Kukho iintlobo ezininzi zee-circuit breakers, kuquka:
1. I-Miniature Circuit Breaker (MCB): Isetyenziswa kwizicelo ze-voltage ephantsi ukukhusela kwi-overloads kunye ne-short circuits.
2. I-Residual Current Breaker (RCCB): Ezi zixhobo zifumanisa ukungalingani kwamandla ombane kwaye ziphule isekethe ukuze zithintele ukutshayiswa ngumbane.
3. I-Eleakage Circuit Breaker (ELCB): Njenge-RCCB, i-ELCB ikhusela kwiimpazamo zomhlaba kunye nemisinga yokuvuza.
Yintoni i-RCD?
Isixhobo samandla asele (RCD), esaziwa ngokuba yiResidual Current Circuit Breaker (RCCB), sisixhobo sokhuseleko esivula isekethe nanini na xa sibona ukungalingani kwamandla asele phakathi kwee-live kunye nee-neutral conductors. Oku kungalingani kwenzeka xa kwenzeka ukungasebenzi kakuhle, njengaxa umntu echukumisa ucingo olusele ngengozi, nto leyo ebangela ukuba kuqhambuke umbane okanye kuqhambuke umbane.
Ii-RCD zenzelwe ukusabela ngokukhawuleza (ngesiqhelo ngaphakathi kwee-millisecond ezingama-30) ukuthintela ukwenzakala okanye ukufa okukhulu. Zibaluleke kakhulu kwiindawo ezimanzi ezifana nezindlu zangasese kunye neekhitshi, apho umngcipheko wokothuka ngombane uphezulu. Ii-RCD zinokufakwa njengezixhobo ezizimeleyo okanye zidityaniswe kwi-circuit breakers ukubonelela ngokhuseleko oluphindwe kabini.
Ukubaluleka kwee-circuit breakers kunye nee-RCD
Ii-circuit breakers kunye nee-RCD zidlala indima ebalulekileyo ekuqinisekiseni ukhuseleko lombane. Ii-circuit breakers zikhusela kwi-overloads kunye ne-short circuits, ngelixa ii-RCD zigxila ekuthinteleni ukukhwankqiswa kombane ngokubona ukuvuza komsinga. Zidibene zakha inkqubo yokhuseleko ebanzi enciphisa umngcipheko weengozi zombane.
1. Ukhuseleko loMlilo: Iziphuli zesekethe zikhusela ekutshiseni kakhulu nakwimililo enokubakho ebangelwa kukuxinana kwesekethe. Zinokukhubeka xa kuyimfuneko, zikhusela iingcingo kunye nezixhobo ekonakalisweni.
2. Ukhuseleko Lokothuka: Ii-RCD zibalulekile ekukhuseleni abantu kukothuka ngombane. Ngokuqhawula ngokukhawuleza isekethe xa kufunyenwe impazamo, zinokunciphisa kakhulu umngcipheko wokwenzakala okanye ukufa.
3. UKUTHOBELA IKHOWUDI: Iikhowudi ezininzi zokhuseleko lombane zifuna ukufakwa kwee-circuit breakers kunye nee-RCD kwiindawo zokuhlala kunye nezorhwebo. Ukuthotyelwa kwemithetho akuqinisekisi nje kuphela ukhuseleko kodwa kukwakhusela abanini bepropathi kwityala elisemthethweni.
Isishwankathelo
Ngamafutshane, ii-circuit breakers kunye nezikhuseli zokuvuza komhlaba zizinto ezibalulekileyo kwiinkqubo zokhuseleko lombane. Ii-circuit breakers zikhusela kwi-overloads kunye ne-short circuits, ngelixa ii-RCD zibonelela ngokhuseleko olubalulekileyo kwi-electrical shock. Ukuqonda umsebenzi kunye nokubaluleka kwezi zixhobo kubalulekile kuye nabani na osebenza ngamandla ombane. Ngokuqinisekisa ukuba ii-circuit breakers kunye nee-RCD zifakwe kwaye zigcinwe kakuhle, singenza imeko-bume ekhuselekileyo kuthi nakwabanye kwaye sinciphise umngcipheko weengozi zombane emakhayeni ethu nakwiindawo zokusebenza.
Ixesha lokuthumela: Novemba-04-2024