Iziphuli zesekethe ezisele (RCCB), ezaziwa ngokuba zizixhobo zangoku ezisele (RCD), zizixhobo ezibalulekileyo zokhuseleko lombane ezidlala indima ephambili ekuthinteleni ukutshayiswa kombane kunye nemililo yombane. Kweli nqaku, siza kujonga ukubaluleka kwee-RCCB, imisebenzi yazo kunye nesizathu sokuba ziyinxalenye ebalulekileyo yayo nayiphi na isekethe.
Okokuqala, kubalulekile ukuqonda ukuba yintoni i-RCCB kunye nento eyenzayo. I-RCCB sisixhobo esivula ngokuzenzekelayo isekethe xa kufunyenwe umsinga wokuvuza, ngaloo ndlela sinciphisa umngcipheko wokutshona ngombane. Isebenza ngokuhlala ijonga ibhalansi yomsinga ohamba ngeengcingo eziphilayo nezingathathi cala zesekethe. Naluphi na umahluko kolu lungelelwaniso, njengaxa umsinga uvuza emhlabeni ngenxa yempazamo okanye ukudibana kwabantu neendawo eziphilayo, kubangela i-RCCB ukuba ikhawuleze ukucima umbane, ithintele ukutshona kombane okunokubulala.
Enye yezona nzuzo ziphambili zee-RCCB kukukwazi kwazo ukubonelela ngokhuseleko ekudibaneni ngokuthe ngqo nangokungathanga ngqo nezixhobo eziphilayo. Ukudibana ngqo kwenzeka xa umntu echukumisa umqhubi ophilayo okanye isixhobo sombane esinengxaki; ukudibana okungathanga ngqo kwenzeka xa umntu echukumisa into etshajiweyo ngenxa yempazamo. Kuzo zombini iimeko, ii-RCCB zinokunciphisa umngcipheko ngokuphazamisa ngokukhawuleza isekethe nokuthintela umsinga ukuba ungahambi emzimbeni, ngaloo ndlela kuncitshiswe ubunzima bokutshayiswa.
Ukongeza, ii-RCCB ziyasebenza ekuthinteleni imililo yombane. Ii-RCCB zinceda ekunciphiseni iingozi zomlilo kwiindawo zokufakelwa kombane kuba zinokubona imisinga emincinci yokuvuza enokubangela ubushushu obugqithisileyo kwaye enokubangela umlilo. Oku kuzenza zibe luncedo ekuqinisekiseni ukhuseleko lwabantu kunye nempahla.
Ukongeza kwiingenelo zokhuseleko, ukusetyenziswa kwee-RCCB kuyafuneka ngakumbi yimithetho nemigaqo yokwakha kumazwe amaninzi. Oku kugxininisa ukubaluleka kokufaka ii-RCCB kuzo zonke iisekethe, nokuba zezokuhlala, zorhwebo okanye zemizi-mveliso. Ukuthobela le migaqo akugcini nje ngokuqinisekisa ukhuseleko lwabahlali, kodwa kunceda ekunciphiseni uxanduva lwabanini bepropathi kunye nabasebenzi bombane.
Xa ukhetha i-RCCB, kubalulekile ukuqwalasela iimfuno ezithile zofakelo lombane. Kukho iintlobo ezahlukeneyo ze-RCCB ezikhoyo, kuquka iindlela ezahlukeneyo zobuntununtunu kunye neempawu zokukhubeka. Umzekelo, ii-Type AC RCCB zenzelwe ukukhusela kwi-sinusoidal alternating currents, ngelixa ii-Type A RCCB zibonelela ngokhuseleko olongezelelweyo kwi-pulsating DC currents, nto leyo ezenza zifaneleke ukusetyenziswa kwiisekethe kwizixhobo ze-elektroniki okanye kwi-variable speed drives. Kubalulekile ukubonisana nombane okanye injineli efanelekileyo ukuze kuchongwe uhlobo lwe-RCCB olufaneleke kakhulu kwisicelo esithile.
Kubalulekile ukuqaphela ukuba ukuvavanywa rhoqo kunye nokugcinwa kwee-RCCB kubalulekile ukuqinisekisa ukusebenza kwazo okuthembekileyo. Uvavanyo oluqhelekileyo lunokunceda ekuchongeni naziphi na iingxaki okanye iziphene ezinokubakho kwi-RCCB, ukuqinisekisa ukuba ihlala isebenza kwaye isebenza kakuhle ekukhuseleni. Ukongeza, kuyacetyiswa ukuba i-RCCB ifakwe yingcali yombane enelayisenisi ukuqinisekisa ukufakwa ngokufanelekileyo kunye nokuthobela imigaqo efanelekileyo.
Isishwankathelo,Ii-RCCBZizinto ezikwiisekethe zombane ezibonelela ngokhuseleko olubalulekileyo ekutshatyalalisweni kombane kunye neengozi zomlilo. Ukukwazi kwazo ukubona nokukhupha ngokukhawuleza xa kukho impazamo kuzenza zibe sisixhobo esibalulekileyo sokhuseleko kwiindawo zokuhlala nezorhwebo. Njengoko kugxininiswa ngakumbi kukhuseleko lombane kunye nokuthotyelwa kwemithetho, ukubaluleka kwee-RCCB akunakugxininiswa kakhulu. Abanini bezindlu, abakhi bombane kunye nabantu ngabanye kufuneka baqonde ukubaluleka kwee-RCCB kwaye babeke phambili ukufakwa kwazo kunye nokugcinwa kwazo kufakelo lombane.
Ixesha lokuthumela: Disemba-21-2023