Isixhobo sokwaphula isekethe esivuzayo: qinisekisa ukhuseleko lombane
Iziphuli zesekethe eziseleyo(ii-RCCB) zizinto ezibalulekileyo kwiinkqubo zombane zanamhlanje, zinceda ekukhuseleni abantu kunye nempahla kwingozi yokutshayiswa ngumbane kunye nemililo yombane. Eli nqaku liza kugxila ekubalulekeni kwe-RCCB, indima yayo kunye neengenelo zayo ekuqinisekiseni ukhuseleko lombane.
Ii-RCCB zenzelwe ukubona nokuphazamisa ukuhamba kwamandla angaqhelekanga okunokwenzeka ngenxa yeziphene ezifana nokuvuza okanye ii-short circuits. Ezi ntsilelo zinokubangela iingozi ezinkulu, ingakumbi kwiindawo zokuhlala okanye zorhwebo apho kusetyenziswa khona izixhobo ezininzi. Ngokuqhawula umbane ngokukhawuleza,Ii-RCCBthintela ukutshayiswa ngumbane kwaye unciphise amathuba okuba kubekho imililo yombane.
Ukusebenza kwe-RCCB kusekelwe kumgaqo wokulinganisela umbane. Bahlala belinganisa umbane ohamba ungena uphuma kwisekethe ngokusebenzisa ii-phase kunye nee-neutral conductors. Xa umbane ohamba kwisekethe uphambuka kumbane ohamba uphuma, oko kubonisa ukuba kukho ingxaki kwisekethe. Lo mahluko ubizwa ngokuba yi-residual current.
Xa umsinga oshiyekileyo ufunyenwe, i-RCCB iyakhubeka ngokukhawuleza, iphule isekethe ngaphambi kokuba kwenzeke nawuphi na umonakalo okanye ukwenzakala. Amaxesha okukhubeka ahlala ngaphakathi kwee-millisecond, ukuqinisekisa ukuba kuthathwe amanyathelo akhawulezileyo ukuthintela iingozi zombane.
Kukho iintlobo ezimbini ze-RCCB: ezizinzileyo nezilungisekayo. Ii-RCCB ezizinzileyo zinereyithingi yangoku eseleyo emiselweyo kwaye zihlala zisetyenziselwa ukhuseleko ngokubanzi. Kwelinye icala, i-RCCB elungisekayo ivumela ukuba reyithingi yangoku eseleyo ilungiswe ukuze ihlangabezane neemfuno ezithile. Ezi ntlobo zihlala zisetyenziswa kumashishini apho izixhobo ezikhethekileyo zinokufuna useto oluthile.
Enye yeenzuzo ezibalulekileyo ze-RCCBs kukukwazi kwazo ukubonelela ngokhuseleko kwi-electrical shock, ingakumbi kwiindawo ezimanzi. Amanzi angumkhombisi wombane onamandla kwaye andisa umngcipheko we-electrical shock. Nangona kunjalo, ukuba isixhobo sidibana namanzi, nto leyo ebangela ukuvuza, i-RCCB iya kukhawuleza ibone ukungalingani kwaye ikhuphe i-circuit ukuze iphephe iziphumo ezibulalayo.
Ii-RCCB zikwadlala indima ebalulekileyo ekunciphiseni ukwenzeka kwemililo yombane. Impazamo efana ne-short circuit inokubangela ubushushu obugqithisileyo kwaye ibangele ukuba intambo inyibilike, nto leyo enokubangela umlilo. Ngokunqumla umbane ngoko nangoko xa kufunyenwe impazamo, ii-RCCB zinokunciphisa kakhulu umngcipheko womlilo, zinciphise umonakalo wepropathi kwaye zithintele ukulahleka kobomi okunokwenzeka.
Kubalulekile ukuqinisekisa ukuba i-RCCB ifakwe ngokuchanekileyo kwaye ivavanywa rhoqo ukuqinisekisa ukusebenza kwayo. Ukufakelwa kufuneka kwenziwe yingcali yombane kwaye kuthathelwe ingqalelo iimfuno ezithile zenkqubo nganye yombane. Uvavanyo oluqhelekileyo luya kuqinisekisa ukuba i-RCCB isebenza kakuhle kwaye inika ukhuseleko oluqhubekayo.
Ngamafutshane, iziphuli-mbane ezivuzayo emhlabeni ziyinxalenye ebalulekileyo yeenkqubo zombane, zibonelela ngokhuseleko olusisiseko kwiingozi zombane. Zikhawuleza zibone kwaye zikhuphe iisekethe ezinengxaki, zinciphise umngcipheko wokutsha kombane kunye nemililo yombane. Ngokufaka i-RCCB kufakelo lombane kunye nokuqinisekisa ukuba zisebenza kakuhle, sinokuphucula kakhulu ukhuseleko lombane kwaye sikunike uxolo lwengqondo.
Ixesha lokuthumela: Novemba-13-2023