2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Lub hom phiaj ntawm National Electric Code National Electric Code The National Electrical Code (NEC), los yog NFPA 70, yog ib cheeb tsam uas tau txais tus qauv rau kev nyab xeeb ntawm kev teeb tsa hluav taws xob thiab cov khoom siv hauv Tebchaws Meskas. Nws yog ib feem ntawm National Fire Code series luam tawm los ntawm National Fire Protection Association (NFPA), lub koom haum kev lag luam ntiag tug. https://en.wikipedia.org › wiki › National_Electrical_Code
National Electrical Code - Wikipedia
kev txwv ntawm qhov chaw ntawm lub vaj huam sib luag yog kev nyab xeeb ntawm tus neeg qhib lub vaj huam sib luag rau kev pabcuam. Kev sawv ntawm tus ntaiv tsis tau txais [NEC 240.24 (F)]. …
Qhov twg tsis tso cai rau cov vaj huam sib luag hluav taws xob?
Cov khoom tawg yuav tsum tsis txhob nyob hauv cov chav me me xws li lub txee dai khaub ncaws, chav dej, pantry lossis chav cia me me.
Kuv tuaj yeem tso kuv lub vaj huam sib luag rau qhov twg?
Nyob rau hauv cov ntsiab lus, cov hluav taws xob vaj huam sib luag tuaj yeem nyob nyob txhua qhov chaw uas tsis yog hauv chav dej, khaub ncaws txee, saum toj ntawm tus ntaiv lossis hauv qhov hluav taws kub sib cais lossis thaj chaw sib cais phab ntsa tsuav yog Cov kev ua haujlwm raug cai raug muab los ntawm NEC 110.26, thiab cov ntaub ntawv kaw tau tsim nyog rau daim ntawv thov (piv txwv li NEMA 3R yog …
Lub thawv tawg puas tuaj yeem nyob sab saud?
Cov Lus Qhia Tseem Ceeb Ntawm Circuit Breaker rau Beginners
Yog tias koj xav paub tias nws nyob qhov twg hauv koj lub tsev, nrhiav lub npov hluav taws xob hauv koj lub tsev.hauv qab daus los yog chaw nres tsheb. … Txhua tus ceg ntoo tawm mus rau thaj chaw, zoo li lub tsev sab saud, chav nyob, lossis hauv qab daus.
Koj puas tuaj yeem khiav Conduit hauv stairwell?
3.2. 1(10)(b) hauv NFPA 101 tau hais tias tsuas yog cov kav dej hluav taws xob tuaj yeem pab cov khoom siv hauvtus ntaiv lossis tus ntaiv, yog li nws tsuas tuaj yeem nkag mus rau thaj chaw no.
Pom zoo:
Puas siv hluav taws xob hauv qhov hluav taws xob tuaj yeem siv rau ntawm qhov loj?
Txawm hais tias tsawg dua, lwm hom kev siv hluav taws xob hauv av tuaj yeem siv los muab ntau lub zog ntau dua. Tapping qhov chaw ntawm cov dej kub faus rau hauv qab lub ntiaj teb saum npoo tuaj yeem muab cua sov rau cov neeg coob coob, thiab tsim kom muaj zog txaus los tsim hluav taws xob loj.
Lub chaw nres tsheb hluav taws xob hluav taws xob puas tuaj yeem ua haujlwm?
Coal-fired cov nroj tsuag tsim hluav taws xob los ntawm kev hlawv cov thee hauv lub boiler los tsim cov pa. Cov chav uas tsim, nyob rau hauv lub siab loj heev, ntws mus rau hauv lub turbine, uas tig lub generator los tsim hluav taws xob. Cov chav yog txias, condensed rov qab mus rau hauv dej thiab rov qab mus rau lub boiler kom pib txheej txheem dua.
Puas hluav taws xob hluav taws xob puas tsim hluav taws xob?
Coal feem ntau siv roj los tsim hluav taws xobhauv Tebchaws Meskas. Hauv cov chaw tsim hluav taws xob hluav taws xob hluav taws xob, cov hluav taws xob bituminous, subbituminous thee, lossis lignite raug hlawv. Cov cua kub uas tsim los ntawm kev sib xyaw ntawm cov thee yog siv los hloov cov dej mus rau hauv qhov chaw siab zog, uas tsav lub turbine, uas tsim hluav taws xob.
Koj puas tuaj yeem tsim hluav taws xob xaim hluav taws xob?
Tsis txhob xaim hluav taws xob. Thiab, yog tias koj muaj lub siab xav ua hluav taws xob woven hlau - koj tuaj yeem xav txog kev txhim kho cov hlau kub kub rau nws kom cov tsiaj tawm ntawm nws. Koj puas tuaj yeem tsim hluav taws xob hluav taws xob?
Lub tshuab hluav taws xob hluav taws xob tsim hluav taws xob li cas?
Piav seb lub twj hluav taws xob hluav taws xob tsim hluav taws xob hla lub membrane li cas. Los ntawm pum electrons hla lub membrane, sab uas cov electrons raug tshem tawm muaj qhov zoo dua, thaum sab tau txais cov hluav taws xob ntau muaj qhov tsis zoo.
