Video: Dab tsi yog Ufer grounding system?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Ufer hauv av . Los ntawm Wikipedia, phau ntawv txhais lus pub dawb. Cov Ufer hauv av yog lub ntiaj teb hluav taws xob hauv av txoj kev tsim thaum Ntiaj Teb Tsov Rog II. Nws siv cov pob zeb ua hluav taws xob ua kom zoo dua qub hauv av hauv thaj chaw qhuav. Cov txheej txheem yog siv hauv kev tsim cov hauv paus tsim vaj tsev.
Ib yam li ib tus yuav nug, puas yog Ufer av xav tau?
Cov yuav tsum tau rau lub pob zeb-encased electrode, feem ntau hu ua " Ufer Av " muaj nyob rau hauv 250.52(A)(3). Qhov no yog ib qho electrode tsim los ntawm kev siv hluav taws xob conductive reinforcing tuav los yog liab qab tooj liab conductors tsis tsawg dua 4 AWG tsawg kawg yog 20 ft nyob rau hauv ntev.
Ib yam nkaus, yuav tsum muaj cov pas hauv av nyob qhov twg? Txoj Cai yuav tsum tau koj mus rau qhov chaw pas nrig tsawg kawg yog 6 feet sib nrug [250.53(B)]. Txawm li cas los xij, qhov sib nrug no yog qhov tsawg kawg nkaus - thiab deb ntawm qhov zoo tagnrho. Thaum siv tus qauv 8-ko taw lossis 10-ko taw tus pas nrig , koj tau txais cov txiaj ntsig zoo tshaj plaws los ntawm qhov sib nrug ntawm rods tsawg kawg yog 16 lossis 20 ko taw sib nrug, feem.
Cov ntawv luv Ufer txhais li cas?
| UFER | Qhob Encased Electrode Governmental » Tub rog | Rate nws: |
|---|---|---|
| UFER | Tsis sib xws Flange Equipment Rack Miscellaneous » Unclassified | Rate nws: |
Koj puas xav tau cov pas nrig hauv av yog tias koj muaj Ufer av?
infinity hais tias: Yog koj xa muaj CEE tiam koj ua tsis xav tau a av qws . CEE thiab av rod ntsia tau yuav tsum tsawg dua 6 'sib nrug.
Pom zoo:
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