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русский Lub tshuab hluav taws xob yog lub tshuab hluav taws xob siv rau kev tiv thaiv thiab kev xa hluav taws xob. Lawv tuaj yeem tsim los ntawm ntau yam khoom siv, xws li: yas, hlau, fiber ntau thiab cov av nplaum raug rho tawm haujlwm, txhua yam nyob ntawm lub hom phiaj nws tau siv rau. Nws yog feem ntau ntsia los ntawm cov hluav taws xob ntawm cov khoom siv hluav taws xob qhov chaw teeb tsa. Cov kev cai tswj xyuas cov conduits siv, daim ntawv thiab cov ntsiab lus ntawm installation yog teev los ntawmUS National Electrical Code (NEC).
Qhov qhib phab ntsa los ntawm sab nraud yog ib txwm pom nyob rau hauv qhov chaw qhib uas tiv thaiv cov cable. Nws yog siv rau qhov chaw tsis tiav xws li attics, crawlspaces, hauv qab daus, thiab sab nrauv mounts.
Ntawm ib sab, cov kab no zoo li ib qho armored cable. Ib yam li Cov Hluav Taws Xob Hluav Taws Xob no, cov khoom siv hluav taws xob thiab cov xaim ploj ntawm ib tus neeg raug kaw nyob rau hauv ib qho armored cable. Qhov no cable yog siv rau AC system. Thiab qhov no yog siv rau thaj chaw qhib.
Conduits feem ntau yog siv los ua ib lo lus los piav txog qhov system uas muaj cov khoom siv hluav taws xob. Cov hauv qab no yog cov laj thawj vim li cas cov kav dej tshwj xeeb tau teeb tsa:
Txuas ib feem ntawm cov kav dej kom haum.
Ua raws li tus choj qhov hluav taws xob rau tus neeg xyuas pib ntsia.
Muab cov kab noj hniav, tshwj xeeb tshaj yog ua cov kais dej thiab cov khoom hauv cov khoom siv.
Txhawm rau muab cov kais dej tshwj xeeb rau cov ceg raj khiav.
Txhawm rau ua kom 90-degree khoov rau kev khiav ntawm lub hose.
Txhawm rau muab kev nkag mus rau tus neeg xyuas pib nyob rau hauv cov nqe lus ntawm lub neej yav tom ntej thiab kev saib xyuas qhov system
Txhawm rau ua raws li qhov hluav taws xob mounting rau cov teeb pom kev zoo thiab cov khoom siv txuas.
Tntawm no yog cov hauv qab no ntau hom conduit siv feem ntau nyob rau hauv vaj tse thiab lub teeb coj mus muag thaiv.
Rigid Hlau Conduit
Rigid hlau conduit (RMC) muaj cov phab ntsa tuab thiab yog tsim los ntawm txhuas los yog galvanized hlau. Qhov ntau yam no yog ib qho ntawm cov khoom hnyav tshaj plaws ntawm cov kav dej siv hauv ntau daim ntawv thov kev lag luam. Rigid hlau yog ib qho ntawm cov kev xaiv kim dua tab sis muaj zog ntxiv.
Intermediate Hlau Conduit
Intermediate hlau conduit (IMC) yog ib hom ntawm cov kav dej tsis sib haum rau sab nraum zoov thiab yog tsim los tiv thaiv cov hluav taws xob hluav taws xob thiab cov khoom siv hluav taws xob. Nws muaj ntau qhov kev tiv thaiv tib yam ntawm cov kav hlau tsis nruj tab sis yog qhov kev xaiv pheej yig dua rau cov haujlwm uas tus nqi yog qhov teeb meem.
Hluav taws xob hlau tubing
Hluav taws xob hlau hlau tubing (EMT) yog tsim los ntawm cov hlau coated los yog txhuas thiab yog ib qho kev lag luam ntau dua thiab nyias-walled xaiv dua li lwm cov kav dej. Hom conduit no tsis muaj kev tiv thaiv tib yam li cov kav hlau tsis nruj tab sis yog sib dua thiab tuaj yeem ua ke nrog cov khoom siv fittings, tshem tawm qhov xav tau ntawm threading. EMT kuj tuaj yeem khoov rau cov duab siv lub cuab yeej tshwj xeeb kom haum rau ib puag ncig kev cuam tshuam lossis ua raws li cov duab ntawm kev teeb tsa.
Liquid-Tight Non-Metallic Conduit
Cov kua-tight non-metallic conduit yog tsim los siv nyob rau hauv ib puag ncig uas noo noo tuaj yeem ua teeb meem. Hom conduit no yuav tsum tau siv ua ke nrog cov kua-tight fittings.
PVC Conduit
Polyvinyl chloride (PVC) conduit yog hom nrov tshaj plaws ntawm cov khoom siv tsis yog xim hlau thiab muaj ntau yam zoo:
Ntau yam thiab yooj yim rau nruab
Feem ntau pheej yig dua li lwm txoj kev xaiv
Lub teeb
Muaj nyob rau hauv ntau hom phab ntsa thicknesses
Ua haujlwm zoo hauv pob zeb thiab hauv av
Txawm hais tias nws muaj ntau qhov zoo hauv lwm daim ntawv thov, PVC conduit tsis pom zoo siv rau hauv thaj chaw uas raug tshav ntuj ncaj qha. Lub hnub ci tuaj yeem rhuav tshem cov khoom nyob rau lub sijhawm.
