Video: Qhov txawv ntawm RMC thiab IMC yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Intermediate hlau conduit ( IMC ) muaj phab ntsa nyias dua RMC thiab hnyav li ib feem peb tsawg dua. IMC muaj phab ntsa nyias dua RMC thiab hnyav li ib feem peb tsawg dua RMC . Sab nraud muaj zinc-raws li txheej, thiab sab hauv muaj kev pom zoo organic corrosion-resistant txheej. IMC yog interchangeable nrog galvanized RMC.
Tsis tas li ntawd, IMC conduit siv rau dab tsi?
Cov hlau nruab nrab kav dej , los yog IMC , yog cov khoom siv hluav taws xob tsis zoo kav dej tsim rau sab nraum zoov raug thiab muaj zog sib txuas. Nws tau tsim tshwj xeeb los tiv thaiv insulated hluav taws xob conductors thiab cables. Nws ua haujlwm ntawm cov hlau zoo sib xws kav dej , tawv hlau kav dej ( RMC ), tab sis hnyav txog ib feem peb tsawg dua.
Tsis tas li ntawd, qhov txawv ntawm EMT thiab cov kav dej nruj yog dab tsi? Riam yog phab ntsa tuab kav dej uas yog ib txwm threaded. EMT yog ib phab ntsa nyias kav dej uas yog tsis tuab txaus yuav threaded.
Kuj tseem paub yog, IMC puas tuaj yeem faus?
Nyob rau hauv 2017 NEC, ib ntu tshiab tau ntxiv uas yuav tsum tau threaded rigid hlau kav dej ( RMC ) los yog nruab nrab hlau kav dej ( IMC ) rau underground thaiv. Qhov kev zam pub rau PVC kav dej , Hom RTRC kav dej , thiab Hom HDPE kav dej qhov twg faus nyob rau hauv tsis pub tsawg tshaj 2 ko taw ntawm npog.
galvanized steel RMC puas tuaj yeem siv tau nyob rau hauv txhua qhov chaw huab cua?
NEC Tshooj 344, Rigid Hlau Conduit, thiab Tshooj 342, Intermediate Hlau Conduit, hais tias Galvanized hlau RMC thiab IMC yuav tsum tau tso cai nyob rau hauv tag nrho cov atmospheric tej yam kev mob ,” thiab Tshooj 358, Hluav Taws Xob Hlau Tubing, muaj qhov xav tau zoo sib xws.
Pom zoo:
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