Arc-fault circuit interrupters (AFCIs) tau dhau los ua qhov xav tau rau kev teeb tsa hauv tsev nyob hauv xyoo 2002National Electrical Code(NEC) thiab tam sim no siv ntau thiab ntau daim ntawv thov.Obviously, cov lus nug tau raug nug txog lawv daim ntawv thov thiab txawm tias qhov xav tau rau lawv.Muaj kev lag luam pitches, kev xav thiab, ncaj ncees heev, txhob txwm tsis to taub floating nyob ib ncig ntawm ntau yam kev lag luam raws.Kab lus no yuav nthuav tawm qhov tseeb txog dab tsi AFCIs yog thiab vam tias qhov no yuav ua rau koj nkag siab AFCI zoo dua.
AFCIs Tiv Thaiv Hluav Taws Hauv Tsev
Peb caug xyoo dhau los, peb lub tsev tau hloov pauv los ntawm cov khoom siv hluav taws xob niaj hnub nrog cov thev naus laus zis tshiab;Txawm li cas los xij, cov cuab yeej no kuj tau ua rau muaj hluav taws xob ntau ntawm lub teb chaws no raug kev txom nyem txhua xyoo.Ntau lub tsev uas twb muaj lawm tsuas yog cuam tshuam los ntawm kev xav tau hluav taws xob niaj hnub no yam tsis muaj kev tiv thaiv kev nyab xeeb, ua rau lawv muaj kev pheej hmoo ntau dua ntawm arc faults thiab arc-induced hluav taws.Qhov no yog qhov peb tab tom tham txog ntawm tsab xov xwm no, tib neeg yuav tsum tau hloov kho lawv cov khoom siv hluav taws xob kom txhim kho kev nyab xeeb thiab.
Qhov kev ua txhaum arc yog qhov teeb meem hluav taws xob txaus ntshai feem ntau tshwm sim los ntawm kev puas tsuaj, overheated, los yog kev ntxhov siab ntawm cov hlua hluav taws xob lossis cov khoom siv.Arc faults feem ntau yuav tshwm sim thaum cov xov hlau qub dhau los ua tawg lossis tawg, thaum tus ntsia hlau lossis ntsia hlau ua rau cov xaim tom qab ntawm phab ntsa, lossis thaum lub qhov hluav taws xob lossis cov hluav taws xob raug overburdened.Yog tsis muaj kev tiv thaiv los ntawm cov khoom siv hluav taws xob tshiab, tej zaum peb yuav tau kuaj xyuas cov teeb meem no thiab tswj lub tsev txhua xyoo kom muaj kev thaj yeeb nyab xeeb.
Cov ntaub ntawv qhib qhia tau hais tias arcing faults ua rau ntau tshaj 30,000 hluav taws hauv tsev txhua xyoo hauv Tebchaws Meskas, ua rau ntau pua tus neeg tuag thiab raug mob thiab ntau dua $ 750 lab hauv vaj tse puas tsuaj.Txoj kev daws teeb meem uas tuaj yeem zam qhov teeb meem yog siv qhov sib xyaw ua ke arc fault circuit interrupter, lossis AFCI.CPSC kwv yees tias AFCIs tuaj yeem tiv thaiv ntau dua 50 feem pua ntawm cov hluav taws xob hluav taws xob uas tshwm sim txhua xyoo.
AFCIs thiab NEC
Txoj Cai Hluav Taws Xob Hauv Tebchaws tau suav nrog kev nthuav dav ntxiv rau AFCI kev tiv thaiv hauv txhua lub tsev tshiab txij li xyoo 2008.Txawm li cas los xij, cov kev cai tshiab no yuav tsis muaj txiaj ntsig tam sim no tshwj tsis yog tias tsab cai lij choj tam sim no tau raug lees paub rau hauv xeev thiab hauv zos cov lej hluav taws xob.Lub xeev kev saws thiab kev tswj hwm ntawm NEC nrog nws cov AFCI zoo yog qhov tseem ceeb rau kev tiv thaiv hluav taws, tiv thaiv tsev, thiab cawm neeg txoj sia.Qhov teeb meem tuaj yeem daws tau tiag tiag thaum txhua tus neeg siv AFCI kom raug.
Cov neeg tsim tsev nyob hauv qee lub xeev tau tawm tsam qhov kev xav tau ntau ntxiv rau AFCI thev naus laus zis, thov tias cov cuab yeej no yuav ua rau tus nqi ntawm lub tsev nce ntxiv thaum ua qhov sib txawv me ntsis hauv kev txhim kho kev nyab xeeb.Hauv lawv lub siab, txhawm rau txhim kho cov cuab yeej hluav taws xob kev nyab xeeb yuav nce nyiaj tab sis tsis muaj kev tiv thaiv kev nyab xeeb ntxiv.
Cov neeg tawm tswv yim txog kev nyab xeeb xav tias tus nqi ntxiv rau AFCI kev tiv thaiv yog qhov tsim nyog rau cov txiaj ntsig kev siv tshuab muab rau tus tswv tsev.Nyob ntawm qhov loj ntawm lub tsev, tus nqi cuam tshuam rau kev txhim kho AFCI kev tiv thaiv hauv tsev ntxiv yog $ 140 - $ 350, nws tsis yog tus nqi loj heev piv nrog qhov ua tau poob.
Qhov kev sib cav nyob ib puag ncig cov thev naus laus zis no tau ua rau qee lub xeev tshem tawm cov kev cai AFCI ntxiv los ntawm cov cai thaum lub sijhawm kev saws me nyuam.Xyoo 2005, Indiana tau dhau los ua thawj thiab tsuas yog lub xeev tshem tawm AFCI cov kev cai uas tau xub suav nrog hauv lub xeev txoj cai hluav taws xob.Peb ntseeg hais tias ntau thiab ntau lub xeev yuav pib siv AFCI raws li kev tiv thaiv kev nyab xeeb tshiab tshaj plaws nrog kev siv thev naus laus zis nrov.
Post lub sij hawm: Jan-11-2023