Qonda iimpazamo ze-Arc kunye noKhuseleko lwe-AFCI

Igama elithi "impazamo ye-arc" libhekiselele kwimeko apho uqhagamshelo lweentambo ezixekileyo okanye ezidlekileyo zidala unxibelelwano oluphakathi ukuze kubangele umbane ovuthayo okanye u-arc phakathi kweendawo zoqhagamshelwano zentsimbi.Uva i-arcing xa usiva iswitshi yokukhanya okanye i-outlet ikhala okanye ifutha.Le arcing iguqulela kubushushu kwaye ke ibonelela ngesixhobo sokuvusa imililo yombane, oku ngenene ukwaphula isigqubuthelo esijikeleze iingcingo zombane eziqhubayo.Ukuva i-buzz yokutshintsha akuthethi ukuba umlilo ukufuphi, kodwa kuthetha ukuba kukho ingozi enokubakho ekufuneka ijongwe.

I-Arc Fault vs. IFault yaseMhlabeni vs. ISekethe emfutshane

Amagama e-arc fault, i-ground fault, kunye ne-short-circuit ngamanye amaxesha abangela ukudideka, kodwa ngokwenene aneentsingiselo ezahlukeneyo, kwaye nganye ifuna isicwangciso esahlukileyo sokuthintela.

• Impazamo ye-arc, njengoko kukhankanyiwe ngasentla, yenzeka xa uqhagamshelo lwecingo oluxengaxengayo okanye iingcingo ezidlileyo zibangela intlantsi okanye i-arcing, inokubangela ubushushu kunye nokubakho kwemililo yombane.Isenokuba ngumanduleli wesekethe emfutshane okanye impazamo yomhlaba, kodwa yona ngokwayo, impazamo ye-arc ayinakuvala nokuba yi-GFCI okanye i-breaker circuit.Indlela eqhelekileyo yokugada kwiimpazamo ze-arc yi-AFCI (i-arc-fault circuit interrupter) -ingaba yi-AFCI okanye i-ACCI i-breaker circuit.Ii-AFCI zenzelwe ukuthintela (ukukhusela) ingozi yomlilo.
• Impazamo yomhlaba ithetha uhlobo oluthile lwesekethe emfutshane apho amandla "ashushu" asebenza ngokudibana nomhlaba.Ngamanye amaxesha, impazamo ephantsi ngokwenene ibizwa ngokuba "yi-short-to-ground."Njengezinye iintlobo zeesekethe ezimfutshane, iingcingo zesekethe zilahlekelwa ukuchasana ngexesha lesiphambeko somhlaba, kwaye oku kubangela ukuhamba okungathintekiyo kwangoku okufuneka kubangele ukuba i-breaker circuit ihambe.Nangona kunjalo, i-breaker circuit ayinakusebenza ngokukhawuleza ukuthintela ukothuka, iKhowudi yombane ifuna izixhobo ezikhethekileyo zokukhusela ngenxa yesi sizathu, yiloo nto i-GFCIs (i-ground-fault circuit interrupters) kufuneka ifakwe kwiindawo apho iziphene zomhlaba zinokwenzeka kakhulu ukuba zenzeke. njengendawo yokuphuma kufuphi nemibhobho yamanzi okanye kwiindawo ezingaphandle.Bayakwazi ukuvala isekethe nangaphambi kokuba kuvakala umothuko kuba ezi zixhobo ziziva amandla atshintsha ngokukhawuleza.Ii-GFCI, ke ngoko, zizixhobo zokhuseleko ezijoliswe ikakhulu ukugadaumothuko.
• Isekethe emfutshane ibhekisa kuyo nayiphi na imeko apho amandla "ashushu" aphuma ngaphandle kwenkqubo yocingo esekiweyo kwaye anxibelelane nokuba kungendlela yocingo engathathi hlangothi okanye indlela yokumisa.Ukuhamba kwangoku kulahlekelwa ukuchasana kwayo kwaye ngokukhawuleza kwandisa umthamo xa oku kwenzeka.Oku ngokukhawuleza kubangela ukuba ukuhamba kudlule umthamo we-amperage we-circuit breaker elawula i-circuit, eqhele ukuhamba ukumisa ukuhamba kwangoku.

Imbali yeKhowudi yoKhuseleko lweFault ye-Arc

I-NEC (iKhowudi yeSizwe yoMbane) ihlaziywa ngexesha elinye emva kweminyaka emithathu, iye yanda ngokuthe ngcembe iimfuno zayo zokukhusela i-arc-fault kwiisekethe.

Yintoni uKhuseleko lwe-Arc-Fault?

Igama elithi “i-arc-fault protection” libhekisela kuso nasiphi na isixhobo esenzelwe ukugada unxibelelwano olungalunganga olubangela i-arcing, okanye i-sparking.Isixhobo sokubona siva i-arc yombane kwaye saphule isekethe ukunqanda umlilo wombane.Izixhobo zokukhusela i-arc-fault zikhusela abantu engozini kwaye zibalulekile kukhuseleko lomlilo.

Kwi-1999, iKhowudi yaqala ukufuna ukukhuselwa kwe-AFCI kuzo zonke iisekethe zokutyisa amagumbi okulala, kwaye ukususela ngonyaka ka-2014 ukuya phambili, phantse zonke iisekethe ezibonelela ngeevenkile eziqhelekileyo kwiindawo zokuhlala kufuneka zibe nokhuseleko lwe-AFCI kulwakhiwo olutsha okanye kwiiprojekthi zohlengahlengiso.

Ukususela kwi-2017 edition ye-NEC, amagama eCandelo 210.12 athi:

KonkeI-120-volt, inqanaba elinye, i-15- kunye ne-20-ampere iisekethe zesebe ezibonelela ngeevenkile okanye izixhobo ezifakelwe kwiiyunithi zokuhlala, amagumbi osapho, amagumbi okutyela, amagumbi okuhlala, amagumbi okuhlala, amathala eencwadi, imiqolomba, amagumbi okulala, amagumbi elanga, amagumbi okuzonwabisa, amagumbi okuphumla, iipaseji, iindawo zokuhlamba impahla, okanye amagumbi afanayo okanye iindawo ziya kukhuselwa zii-AFCIs.

Ngokuqhelekileyo, iisekethe zifumana ukhuseleko lwe-AFCI ngokusebenzisa i-ACCI i-breakers ekhethekileyo ekhusela zonke iivenkile kunye nezixhobo ezisecaleni kwesekethe, kodwa apho oku kungenzekiyo, ungasebenzisa iindawo ze-AFCI njengezisombululo zokugcina.

Ukukhuselwa kwe-AFCI akuyimfuneko kufakelo olukhoyo, kodwa apho isekethe yandiswa okanye ihlaziywa ngexesha lokulungiswa kwakhona, kufuneka ifumane ukhuseleko lwe-AFCI.Ke, umntu osebenza ngombane osebenza kwinkqubo yakho unyanzelekile ukuba ahlaziye isekethe ngokhuseleko lwe-AFCI njengenxalenye yawo nawuphi na umsebenzi awenzayo kuyo.Kwimeko esebenzayo, kuthetha ukuba phantse zonke ii-breaker breaker replacements ngoku ziya kwenziwa kunye nabaphuli be-AFCI kulo naliphi na igunya lokulandela i-NEC (iKhowudi yoMbane yeSizwe).

Ayilulo lonke uluntu oluthobela i-NEC, nangona kunjalo, nceda ujonge kwabasemagunyeni basekhaya ngeemfuno malunga nokhuseleko lwe-AFCI.