NEC muab qhov yuav tsum tau muaj yam tsawg kawg nkaus rau kev teeb tsa hluav taws xob nyab xeeb. Qhov tseem ceeb, qhov no txhais tau tias kev teeb tsa yuav tsum sib npaug lossis ntau dua li cov cai muaj.
Tus qauv yam tsawg kawg nkaus yog NEC?
Lub Tebchaws Hluav Taws Xob Code (NEC), lossis NFPA 70, yog ib cheeb tsam uas tau txais kev pom zoo rau kev nyab xeeb ntawm kev teeb tsa hluav taws xob thiab khoom siv hauv Tebchaws Meskas.
Cov ntawv UL txhais li cas?
nqe lus nug: Cov ntawv "UL" txhais li cas ntawm hluav taws xob thiab lwm yam khoom siv hauv tsev? Teb: Cov ntawv sawv cev rau Underwriters Laboratory. Qhov no yog lub koom haum nonprofit tsim ntau tshaj 90 xyoo dhau los los kuaj cov khoom rau lawv kev nyab xeeb.
NEC lub hom phiaj yog dab tsi?
NEC (Lub Koom Haum Tiv Thaiv Hluav Taws Xob Hauv Tebchaws NFPA 70) yog tus qauv siv dav dav rau kev teeb tsa cov khoom siv hluav taws xob thiab cov tshuab. Nws lub hom phiaj yog txhawm rau tiv thaiv tib neeg thiab khoom ntiag tug los ntawm kev phom sij tshwm sim los ntawm kev siv hluav taws xob (NEC 90.1(A)).
Qhov txawv ntawm NEC thiab NFPA yog dab tsi?
Qhov txawv ntawm NFPA 70 (NEC®) thiab NFPA 70E yog dab tsi? National Electrical Code® feem ntau suav hais tias yogdaim ntawv teeb tsa hluav taws xobthiab tiv thaiv cov neeg ua haujlwm raws li qhov xwm txheej ib txwm muaj. NFPA 70E yog npaj los muab kev taw qhia txog kev siv hluav taws xob ua haujlwm nyab xeeb.
