GFCI lossis "Ground Fault Circuit Interrupters" muab kev tiv thaiv kev poob siab ntxiv rau cov neeg ua haujlwm uas tuaj yeem cuam tshuam nrog cov khoom siv hluav taws xob tsis raug, tshwj xeeb yog hauv lossis ze dej. Lawv tau xav tau hauv ntau lub tsev nyob qhov chaw txij li xyoo 1970, raws li NEC (Txoj Cai Hluav Taws Xob Hauv Tebchaws). Cov npe tau txuas ntxiv mus ntxiv, nrog rau ntau qhov chaw thiab cov ntawv thov ntxiv hauv xyoo 2017 tsab. Mus txuas ntxiv nyeem kom paub qhov twg thiab thaum twg GFCI kev tiv thaiv yuav tsum tau muab.
Cov kauj ruam
Kauj Ruam 1. Txheeb xyuas cov cai hluav taws xob twg xav tau hauv koj qhov chaw rau koj hom haujlwm
- Feem ntau ntawm Asmeskas thiab Central America siv Txoj Cai Hluav Taws Xob Hauv Tebchaws (NEC), NFPA 70.
- International Txoj Cai Nyob Hauv Tebchaws (IRC) ntawm International Code Commission kuj tseem tau txais kev pom zoo ua ib feem ntawm "kev tsim vaj tsev" thiab suav nrog GFCI cov tseev kom muaj sib tshooj rau NEC.
- IEC 60364 (ntau ntawm Tebchaws Europe), BS 7671 (Tebchaws Askiv), lossis Canadian Txoj Cai Hluav Taws Xob tuaj yeem siv tau, nyob ntawm lub tebchaws twg koj tuaj yeem nyob hauv, ntawm lwm tus. Kab lus no hais txog NFPA 70, "NEC," raws li siv tau rau cov tsev nyob.
- Kev hloov pauv hauv ib cheeb tsam lossis lwm txoj hauv kev yuav txawv me ntsis, thiab tsab ntawv tom qab lossis yav dhau los tuaj yeem tau txais los ntawm koj qhov chaw nyob, yog li koj yuav tsum ib txwm tshuaj xyuas nrog cov neeg ua haujlwm hauv tsev lossis kws tso cai hluav taws xob. Piv txwv li, Txoj Cai Nyob Hauv Ntiaj Teb tej zaum yuav suav nrog kev xav tau GFCI ntxiv.
Kauj Ruam 2. Txiav txim seb qhov chaw twg xav tau kev tiv thaiv GFCI
Cov lej hluav taws xob sau cov chaw nyob uas cov khoom hloov tshiab lossis hloov chaw yuav tsum muaj kev tiv thaiv GFCI hauv chav nyob thiab hom khoom siv lossis lwm yam kev siv uas xav tau kev tiv thaiv GFCI.
- Feem ntau, chav nyob (qhov chaw uas tib neeg ib txwm noj thiab pw hauv ib chav) muaj qhov tshwj xeeb xav tau uas txawv ntawm cov siv hauv lwm hom kev nyob (suav nrog tsev so lossis lwm yam lag luam) lossis lwm yam kev nyob hauv tsev (piv txwv li, tsim tsev), lossis txawm tias tsheb ua si
- Cov cuab yeej GFCI feem ntau yuav tsum tau teeb tsa hauv "qhov chaw nkag tau yooj yim".
Kauj Ruam 3. Ua raws daim ntawv teev npe yooj yim los ntawm cov cai hluav taws xob uas tsim nyog (raug rau kev hloov pauv hauv ib cheeb tsam)
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2017 tsab NEC (Ntu 210.8) teev cov chaw hauv qab no rau GFCI kev tiv thaiv hauv cov tsev nyob (cov txheej txheem sib txawv siv rau kev teeb tsa tsis nyob hauv tsev), thaum muab nrog 125-volt, ib-theem, 15- lossis 20-amp qhov chaw:
- chav dej,
- chaw nres tsheb (txuas lossis cais tawm) thiab tso lossis lwm yam "cov khoom siv ntxiv,"
- sab nraum zoov,
- crawlspaces,
- ib feem ntawm cov hauv qab daus uas tsis tau tiav (rau kev khaws lossis chaw ua haujlwm, tsis yog "nyob"),
- cov uas ua hauj lwm chav ua noj countertops,
- ntxiv rau ib qho li 6 ft (1.8 m) ntawm sab hauv ntug ntawm lub dab dej, dab da dej lossis chaw da dej,
- hauv qhov chaw ntxhua khaub ncaws thiab
- boathouses thiab nkoj hoist (txog 240 volts).
- Nco ntsoov tias ntu no ntawm tus txheej txheem NEC, rau GFCI hauv "chav nyob," muaj qee qhov kev zam tshwj xeeb ntsig txog cov khoom siv tsis tau siv rau lub ru tsev lossis cov cua sov ua kom sov (muab cov cuab yeej muaj nws tus kheej) thiab rau kev teeb tsa lub tswb zog txuas mus tas li, tab sis tsuas yog hauv qab daus uas tsis tiav. Saib kuj cov mos txwv hauv qab no hais txog lwm yam kev xav tau GFCI lossis kev zam.
Kauj Ruam 4. Xav txog cov npe sib txawv me ntsis ntawm GFCI kev tiv thaiv kev xav rau cov tsev uas tshwm sim los ua tsev
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Cov chaw rau GFCI tiv thaiv cov khoom siv hauv cov tsev tsim khoom suav nrog:
- sab nraum zoov, suav nrog cov khoom nkag tau los ntawm sab nraum zoov, thiab kev sib txuas ua cua sov,
- chav dej,
- chav ua noj,
- tshuab ntxuav tais diav, thiab
- cov khoom siv tsis pub dhau 6 ft (1.8 m) ntawm ntug ntug ntawm lub dab dej.
- Hauv ntau lub tebchaws Asmeskas, tsoomfwv txoj cai tswj hwm tsev tsim ua ntej txhua lub tsev hauv tsev lossis cov lej hluav taws siv rau nws kev tsim kho - yam tsawg kawg kom txog thaum nws hloov kho tom qab teeb tsa. Kev teeb tsa nws tus kheej, kev sib txuas rau sab nrauv, thiab cov cuab yeej lossis cov khoom siv ib puag ncig kuj tseem tsis yog ib feem ntawm tsoomfwv kev txiav txim siab ua ntej.
- Ib txoj cai hauv cheeb tsam tuaj yeem sim ua raws li NEC (lossis lwm cov cai hauv zos), raws li qhov xav tau, rau kev teeb tsa lossis siv, cia nyob ib leeg kho dua lossis lwm yam kev hloov kho tshiab, ntawm "trailer" lossis "mobile home" (ua ua ntej 1976), uas yog sab nraum ntawm tsoomfwv qhov kev txiav txim ua ntej.
Kauj Ruam 5. Txiav txim seb hom cuab yeej lossis khoom siv twg xav tau kev tiv thaiv GFCI lossis yuav raug zam, raws li lawv nyob qhov twg, lawv nyob qhov twg, lossis lawv siv rau dab tsi
Nov yog qhov kev txheeb xyuas ua ntej, vim nws tuaj yeem ua rau nyuaj, thiab koj qhov xwm txheej yuav xav tau kev tshuaj xyuas ntxiv los ntawm tus kws tshaj lij.
- Ntxiv nrog rau cov khoom siv, teeb pom kev nkag mus, thiab kev sib txuas hauv tshuab ntxuav tais diav yuav tsum muaj kev tiv thaiv GFCI.
- Cov chaw da dej thiab cov cuab yeej siv (twj tso kua mis, cua sov, npog lub pas dej, thiab lwm yam) cuam tshuam nrog cov pas dej sab hauv lossis sab nraum zoov lossis chaw so, cov chaw tso dej tas mus li, lossis nyob hauv thaj tsam li 20 ko taw ntawm lub pas dej lossis pas dej, suav nrog cov teeb pom kev zoo, kuj tseem yuav tsum muaj kev tiv thaiv GFCI. Cov pas dej da dej yog thawj qhov khoom siv nkaus xwb uas yuav tsum muaj kev tiv thaiv GFCI, xyoo 1971.
- Cov hlua txuas hauv hluav taws xob ua kom sov hauv chav da dej, chav ua noj, lossis chav da dej, thiab cov ceg ua haujlwm npog rau hauv pem teb xav tau kev tiv thaiv GFCI.
- Cov khoom siv ruaj khov lossis ib ntus siv rau "thaiv ib ntus," suav nrog cov txuas txuas txuas thiab cov khoom siv siv thaum tsim kho, kho dua, kho dua, kho, lossis rhuav tshem cov tsev, cov qauv, cov cuab yeej siv, lossis cov haujlwm zoo sib xws, yuav tsum muaj GFCI kev tiv thaiv. Cov npe muaj kev nyab xeeb, ib ntus, "hnub so teeb pom kev zoo" tuaj yeem raug zam, tshwj tsis yog siv sab nraum zoov lossis ntawm qhov chaw sab hauv tsev uas tsis xav tau GFCI.
- Qee lub tshuab cua sov thiab pa taws raug txwv tsis pub txuas nrog kev tiv thaiv hluav taws xob nrog GFCI lossis AFCI cov cuab yeej.
Kauj Ruam 6. Txiav txim siab seb lub GFCI lub thawv ntim khoom lossis lub GFCI Circuit breaker yog koj qhov kev xaiv zoo tshaj
- Kev tiv thaiv yuav muab los ntawm GFCI cov khoom siv lossis GFCI cov tshuab hluav taws xob tsim los rau lub hom phiaj.
- GFCI Circuit breaker kuj tseem yog qhov kev xaiv zoo uas nws yuav yooj yim dua los tiv thaiv txhua ceg tsis yog txhim kho GFCI cov khoom ntim khoom.
- Nco ntsoov tias, zoo li lwm lub chaw ntim khoom, cov cai ntxiv yuav xav tau cov npe thiab cov ntawv cim rau kev siv tshwj xeeb hauv qee qhov chaw. Ntau dua li muab cov khoom siv GFCI kim rau lub hom phiaj tshwj xeeb, GFCI tus tawg yuav yog lwm txoj hauv kev.
- Yog tias koj tsuas yog qhov laj thawj xav tau GFCI lub qhov rooj nkag los hloov lub qhov hluav taws xob ob qhov nrog peb lub qhov hluav taws xob uas tsis muaj cov cuab yeej tsim nyog hauv av, hloov cov cuab yeej ib leeg nrog GFCI chav tsev yuav yog qhov kev daws teeb meem zoo tshaj plaws.
- Txhua lub chaw xa khoom xav tau kev tiv thaiv GFCI tuaj yeem tsim kho ib tus zuj zus xws li. Cov khoom siv sib txuas ntawm tib lub Circuit Court tuaj yeem tiv thaiv los ntawm ib txoj hauv kev uas muaj kab thaiv tau zoo tiv thaiv ntau qhov chaw txuas nrog txuas ntxiv "nqes kab" los ntawm "thauj khoom sab" ntawm thawj GFCI qhov chaw tso khoom. Txog kev teeb tsa tshiab, txhua qhov khoom siv ib txwm yuav yog hom hauv av kom raug.
- Tus pub zaub mov muab lub zog rau 15- lossis 20-amp cov kab hluav taws xob tuaj yeem muaj GFCI kev tiv thaiv tsis yog kev tiv thaiv xav tau rau cov khoom siv hauv Tshooj 210.8 lossis hauv kev teeb tsa ib ntus.
Kauj Ruam 7. Ua kom ntseeg tau tias cov khoom hloov pauv hloov tau ua raws li txhua tus lej cuam tshuam, suav nrog GFCI, AFCI, cuam tshuam tiv thaiv thiab tsim nyog rau "chaw ntub"
- Txhawm rau hloov cov khoom tsis yog hauv av nrog GFCI kev tiv thaiv, ntxiv "GFCI Tiv Thaiv" cov ntawv cim yuav tsum siv rau cov khoom tiv thaiv.
- Yog tias ua tiav qhov hloov pauv mus rau lub chaw ntim khoom hauv ib ceg ntoo lossis thaj chaw uas tam sim no tseem xav tau kom muaj AFCI kev tiv thaiv, kev daws teeb meem Circuit Court tej zaum yuav zoo dua.
Lub tswv yim
- Txoj Cai Hluav Taws Xob Hauv Tebchaws (NEC) thiab ntau cov lej hauv cheeb tsam tau hloov kho thiab hloov pauv txhua txhua 3 xyoos. Ib txoj hauv kev txuas txoj haujlwm txuas yav dhau los yuav tsis siv tau nyob rau hauv cov kab tshiab lossis hloov kho, suav nrog kev hloov chaw tso khoom. Sib tham txog kev teeb tsa kev teeb tsa nrog tus kws tshuaj xyuas hauv zos ua ntej pib ua haujlwm tuaj yeem txuag sijhawm thiab nyiaj txiag.
- Kev teeb tsa uas twb muaj lawm feem ntau tsis tas yuav hloov kho nrog GFCI kev tiv thaiv tshwj tsis yog cov cai hauv nroog xav tau thaum kho dua lossis tej zaum thaum "hloov pauv kev siv" ntawm tus qauv mus rau hauv lub tsev. Txawm li cas los xij, nws yuav pab yog tias koj txiav txim siab txhim kho GFCI kev tiv thaiv rau koj tus kheej kev nyab xeeb raws li nws dhau los ua qhov tseem ceeb, txawm tias yuav tsum tau ua los yog tsis raws txoj cai.
