Rigid PVC hluav taws xob conduit yog ib qho kev tiv thaiv tseem ceeb hauv kev zais hluav taws xob ua haujlwm. Kev txhim kho zoo ncaj qha cuam tshuam rau cable kev pab cuam lub neej thiab kev nyab xeeb hluav taws xob. Cov teeb meem xws li snagged cable rub, tawg khoov thiab cov pob qij txha tawg feem ntau yog los ntawm tsis yog - kev ua haujlwm tus qauv - tsuas yog ua raws li cov txheej txheem kom raug tuaj yeem ua tau ntev - lub sij hawm conduit kev ntseeg tau.
1. Cable rub
Tag nrho tus ntoo khaub lig- thaj tsam ntawm cov kab hluav taws xob hauv cov kav dej (xws li rwb thaiv tsev) yuav tsum tsis pub tshaj 40% ntawm cov kav dej hauv cheeb tsam, tso cai rau qhov chaw rau cua sov thiab hloov pauv yav tom ntej. Kev suav yuav tsum yog nyob ntawm qhov ntsuas cable sab nraud. DN20 feem ntau nqa 3 × 2.5mm² tooj liab conductors, thiab DN25 nqa 3 × 4mm²; rau ntau-circuit lossis loj-cross{12}}section cables, nce cov kav dej loj los ntawm ib kauj ruam. Ua ntej rub, tshem tawm cov khib nyiab ntawm cov khib nyiab thiab tshem tawm qhov kawg. Rub ntawm qhov nrawm nrawm, thov talcum hmoov ua cov roj nplua nyeem qhov xav tau; tsis txhob quab yuam lossis jerk cov kab. Tom qab rub tawm, tawm qhov ntev txaus ntawm ob qho kawg coiled hauv lub thawv sib txuas, thiab muab lub kaw lus ib ntus kawg tiv thaiv plua plav thiab cement.
2. Khoov
Qhov ntau thiab tsawg DN32 thiab hauv qab no tuaj yeem ua tau txias khoov siv lub caij nplooj ntoos hlav khoov siab; rau qhov ntau thiab tsawg dua DN32, Hoobkas - ua khoov tau pom zoo. Kev quab yuam yog txwv tsis pub. Lub vojvoog khoov rau cov kav dej tawm yuav tsum tsis pub tsawg dua 6 npaug ntawm txoj kab uas hla; rau conduits embedded rau hauv pob zeb, tsis pub tsawg tshaj 10 zaug (GB 50303-2015, JGJ 16). Tso lub caij nplooj ntoos hlav rau ntawm qhov chaw ntawm qhov khoov thiab siv zog maj mam thiab sib npaug. Tsis pom zoo cua sov. Tsis txhob ntau qhov khoov ntawm tib lub kav dej ntev.
3. Kev sib koom ua ke
Cov pob qij txha ncaj siv cov txuas txuas nrog lub qhov ntev ntawm 2-3 npaug ntawm cov kav dej sab nraud, cov kav dej xaus rau ntawm lub qhov (socket center). Ntxuav lub ntsej muag sib koom ua ke, siv PVC hnyav cement sib npaug, ntxig nrog me ntsis twist thiab tso cai rau kho yam tsis muaj kev cuam tshuam. Siv lub Hoobkas- ua 90℃lossis 45℃khoov rau cov ces kaum thiab tees rau ceg. Tsis txhob hloov tes-bent conduit rau txoj kev khoov kom zoo, thiab tsis txhob xyaum cov ceg qhov hauv qhov fittings. Rau kev sib txuas rau cov thawv sib txuas, qhov tob tob yuav tsum yog 1.1-1.8 npaug ntawm cov kav dej sab nraud, ruaj thiab kaw nrog lub xauv; ntxiv lub tes tsho tiv thaiv rau cov seem uas muaj kev cuam tshuam rau kev puas tsuaj.
4. Feem ntau yuam kev
Ua ntej, overfilling lub conduit - txi cov cua kub dissipation, accelerating rwb thaiv tsev laus thiab tiv thaiv yav tom ntej hloov. Thib ob, yuam kev dabtsi yog khoov - thinning thiab tawg phab ntsa thiab tsim ib qho luv luv - Circuit Court txaus ntshai. Thib peb, kev sib koom ua ke tsis zoo - tsis muaj cement lossis sealing, cia cov plua plav thiab dej nkag thiab txo kev tiv thaiv.
5. Txais
Xyuas tias cov kav dej khiav ncaj nraim thiab ruaj ntseg nrog du, tawg -khoov dawb; cov pob qij txha yog ruaj khov, tsis muaj looseness; Tom qab rub tawm, rwb thaiv tsev tiv thaiv ntsuas nrog 500V megger tsis tsawg dua 0.5MΩ, tsis muaj luv luv lossis qhib circuits. Khaws cov ntaub ntawv tsim kho rau cov haujlwm zais thiab ua tiav kev lees paub ua ntej kaw qhov kev sib tw.
Kev rub cable kom raug, khoov kom raug thiab txhim khu kev qha cov pob qij txha ua ke ua ib qho kev tiv thaiv hluav taws xob zoo thiab ruaj khov.
