Cable installation: nteg txoj kev, kev piav qhia technology thiab cov kws tshaj lij cov lus pom zoo

Cov txheej txheem:

Cable installation: nteg txoj kev, kev piav qhia technology thiab cov kws tshaj lij cov lus pom zoo
Cable installation: nteg txoj kev, kev piav qhia technology thiab cov kws tshaj lij cov lus pom zoo

Video: Cable installation: nteg txoj kev, kev piav qhia technology thiab cov kws tshaj lij cov lus pom zoo

Video: Cable installation: nteg txoj kev, kev piav qhia technology thiab cov kws tshaj lij cov lus pom zoo
Video: Nco Txog Hmoob - Xf. Txawj Pes Vaj & Fishermen's Project (Live Session) [Lyric Video] 2024, Hlis ntuj nqeg
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Fais fab mov ua lub luag haujlwm tseem ceeb hauv tib neeg lub neej. Nws raug xa mus rau txhua lub tsev lossis chaw ua haujlwm nrog lub hwj chim cables. Thiab tom qab ntawd cov kab hluav taws xob sab hauv muab hluav taws xob rau ib chav. Cable tso thiab installation yog nqa tawm los ntawm ntau txoj kev. Txhua txoj kev muaj cov kev cai tshwj xeeb. Piv txwv li, cable installation kub nyob rau hauv chav tsev yuav tsum yog los ntawm -20ºС mus rau +40ºС.

Basic wire installation information

Lub ntsiab lus tseem ceeb hauv kev ua haujlwm ntawm kev ua haujlwm hluav taws xob thiab tsis yog tsuas yog muaj cov ntaub ntawv tsim nyog los ntawm tsoomfwv cov koom haum. Cable installation yuav tsum tau ua raws li tej yam yuav tsum tau, uas nyob ntawm seb qhov chaw thiab tej yam kev mob ntawm nteg.

cable installation
cable installation

Piv txwv li, ib hom tshwj xeeb ntawm cable yog siv rau sab nraum zoov thiab hauv av. Tus kws tsim qauv tsim lub luag haujlwm rau kev tsim thiab tshawb nrhiav qhov chaw ntawm kev teeb tsa ntawm cov khoom siv hluav taws xob. Nyob rau tib lub sijhawm, nwsyuav tsum coj mus rau hauv tus account tsis tsuas yog kev nyab xeeb kev xaiv, tab sis kuj tus kheej nyiam ntawm cov neeg siv khoom. Xav txog cov txheej txheem ntawm kev tso cables kom ntxaws.

Outdoor

Cov kws tshaj lij hais tias qhov no yog qhov pheej yig tshaj thiab ceev tshaj plaws. Yog tias cov hlau puas lawm, ces nws txoj kev kho tsis tas yuav siv zog ntau. Lub cable yog mounted rau ntawm phab ntsa siv tshwj xeeb brackets. Txoj kev no tsis nrov heev, yog li koj tuaj yeem tsis tshua ntsib nws.

Ntxhais xaim routing

Ua ntej txhim kho lub cable, nws yog ib qho tsim nyog yuav tsum tau ua phab ntsa chasing.

cable tes tsho installation
cable tes tsho installation

txheej txheem no muaj nyob rau hauv kev ua ib qho chaw so hauv phab ntsa, qhov dav ntawm qhov nyob ntawm seb hom hlua tau pw. Txoj kev no muab cov chav tsis tsuas yog ib qho zoo nkauj, tab sis kuj muaj kev nyab xeeb heev. Nws muaj nws qhov zoo thiab qhov tsis zoo. Cov txiaj ntsig suav nrog:

  • tsis muaj xov hlau ntawm phab ntsa;
  • nkag tsis tau rau menyuam yaus thiab tsiaj;
  • Tiv thaiv cov hlau los ntawm ya raws thiab kev puas tsuaj.

Cov neeg txhim kho nco ntsoov tsuas yog ib qho tsis zoo ntawm txoj kev no. Qhov no yog qhov muaj feem ntau yuav dawm rau ntawm cable thaum lub sijhawm drilling. Txhawm rau kom tsis txhob muaj qhov tshwm sim no, nws yog ib qho tsim nyog yuav tsum muaj lub zog ua haujlwm. Kev puas tsuaj rau cov hlau ua rau nws nyuaj rau kho.

Nyob rau hauv lub thawv

Kev txhim kho cov xaim thiab cables hauv txoj haujlwm no tuaj yeem pom hauv chaw ua haujlwm, tsev hauv tebchaws, khw thiab chaw lag luam.

cable tso thiab installation
cable tso thiab installation

Muaj ob hom thawv: nrogqhib nrog lub hau thiab kaw. Txhawm rau muab lub ntsej muag zoo nkauj dua, cov ces kaum thiab tees yog ntxiv yuav. Txoj kev no tsis siv sijhawm ntau thiab siv zog. Qhov luaj li cas ntawm lub thawv yog nyob ntawm tus nqi ntawm cov xaim raug tso. Cables tuaj yeem nkag tau yooj yim thiab kho yog tias tsim nyog.

Underground installation

Kev txhim kho lub zog hluav taws xob hauv txoj kev no yuav tsum muaj nyiaj txiag tseem ceeb rau kev ua haujlwm hauv av. Lub cable tuaj yeem muab tso rau hauv ib lub qhov tshwj xeeb lossis tsuas yog faus. Txawm li cas los xij, qhov ntsuas ntawm nws qhov kev tiv thaiv nyob ntawm qhov project muab hluav taws xob.

installation ntawm hlau thiab cables
installation ntawm hlau thiab cables

Koj kuj yuav tsum xav txog kev ua haujlwm ntawm lub cable. Earthworks yog nqa tawm manually los yog nrog kev pab los ntawm cov cuab yeej (nyob ntawm seb qhov tob npaum li cas trench xav tau).

Air laying

Kev teeb tsa hluav taws xob yog nqa los ntawm huab cua los ntawm ncej mus rau ncej hauv ob txoj kev:

  • ntawm cov plooj (porcelain insulators) - kev sib txuas ntawm tus ncej mus rau lub tsev tshwm sim nrog kev pab los ntawm cov plooj (porcelain insulator);
  • nrog kev pab ntawm ncab - kev tso thiab kev teeb tsa ntawm cov hlau tshwm sim nrog kev pab ntawm ib lub lanyard, cable, khi thiab clamps. Cov khoom siv thawj zaug yog siv los txuas lub cable thiab kho qhov ntsuas ntawm qhov nro. Nws qhov loj thiab tuab nyob ntawm qhov hnyav thiab qhov ntev ntawm lub cable. Txhawm rau xa nws mus rau saum tus ncej, siv txoj siv thiab claws.

Pad kub

Txhua lub cables tsuas yog tso rau ntawm qhov ntsuas kub zoo, tsis hais hom rwb thaiv tsev thiab qhov hluav taws xob. Yog hais tias tsim nyog rau nruabtsis zoo kub, ces cov av yuav tsum xub warmed. Vim li cas lawv ua?

cable installation kub
cable installation kub

Daim ntawv rwb thaiv tsev yog impregnated nrog cov roj tshwj xeeb, uas poob nws cov viscosity thiab lubricity nyob rau hauv qhov cuam tshuam ntawm qhov kub tsis zoo. Yog tias nws tsis sov li, cov kab nrib pleb yuav tshwm sim ntawm cov kab khoov. Tsis tas li ntawd, cov khoom siv cable yuav tsis lubricate daim ntawv, tab sis lo ua ke, uas yuav ua rau nws tawg. Txawm li cas los xij, qhov kub tsis zoo yuav cuam tshuam rau kev puas tsuaj ntawm cov khoom, thiab yog li ntawd, yuav ua rau txo qis hauv hluav taws xob.

Nws tso cai rau nteg cables yam tsis muaj cua sov hauv chav. Ntxiv mus, qhov kub thiab txias yog los ntawm rho tawm nees nkaum mus rau xoom degrees Celsius.

Txoj tes tsho cable

Cia peb xav txog hom nrov tshaj plaws ntawm cov ntsiab lus no thiab lawv lub hom phiaj.

Cable box. Tsim los txuas rau qhov kawg ntawm cov hlau thiab lawv cov khoom siv rau cov kab hluav taws xob (feem ntau yog nyiaj siv ua haujlwm) thiab cov khoom siv hluav taws xob siab zog.

Cable termination. Ua haujlwm rau muab cov cables rau cov khoom siv hluav taws xob, uas tuaj yeem nyob hauv tsev thiab sab nraum zoov.

Txoj kab txuas txuas. Siv los txuas ob lub cables ua ke.

fais fab cable installation
fais fab cable installation

Cov kws tshaj lij pom zoo kom tshem cov khoom ntawm lub Hoobkas rwb thaiv tsev nyob rau hauv qhov kawg ntawm lub cable ua ntej siv cov coupling. Cov txheej txheem no yog ua raws li hauv qab no: tshem tawm cov jute txheej, ntawv lossis fiber ntau ntawm tag nrho.rwb thaiv tsev, nrog rau tus kheej cores. Xws li kev tshem tawm yog hu ua stepwise. Qhov ntev ntawm qhov txiav yog muab rau hauv cov ntaub ntawv siv thiab nyob ntawm hom thiab tuab ntawm cov cores.

Ua ntej txuas cov ntawv-cov kab hluav taws xob, xyuas cov dej noo.

installation ntawm hluav taws xob cables
installation ntawm hluav taws xob cables

Ua li no, ib daim ntawv raug txiav tawm ntawm qhov kawg ntawm cov rwb thaiv tsev thiab txo qis rau hauv lub thawv nrog preheated paraffin (kub 140-150ºС). Yog tias muaj dej noo ntawm daim ntawv rwb thaiv tsev, cov npuas me me yuav tshwm sim.

Epoxy thiab txhuas hom couplings yog siv los txuas cables nrog voltage txog 10 kW. Lub ntsiab kom zoo dua qub yog tsis kam mus rau txhoj puab heev tshuaj. Lawv cov khoom zoo ib yam li nres dab tshos. Yog li ntawd, lawv kuj tau siv los txuas cables nrog ntawv rwb thaiv tsev. Lawv yog tsim los ntawm kev sib tov epoxy Cheebtsam nrog ib tug tshwj xeeb thickener. Cov khoom kawg yog ntxiv rau cov epoxy sib tov tam sim ua ntej kev sib txuas ua ke. Qhov no yog qhov tsim nyog thiaj li ua kom cov txheej txheem kho kom sai dua.

Thaum siv lub tes tsho epoxy thaum tso rau hauv qhov av lossis cov kab, nws yog qhov tsim nyog los muab kev tiv thaiv zoo rau lawv. Raws li txoj cai, qhov no yog cov yeeb nkab steel nrog txoj kab uas hla tsawg kawg yog 150 millimeters thiab ntev ntawm 1250 millimeters. 2 txheej ntawm asbestos yog pw rau hauv nws. Cov npoo ntawm cov yeeb nkab yog npog nrog asbestos cement npog.

Cov kab txuas txuas yog siv rau cov cables uas muaj qhov hluav taws xob txog li 10 kW. Lawv tau siv ua ke nrog cov plhaub, uas yog cov kav hlau lead ntawm qhov sib txawv thiab qhov ntev. Cov duab no nyob ntawm qhov tuab thiab qhov hluav taws xob ntawm cov hlau.

Qhov kawg raug ntxuav hauv tib lub sijhawm raws li epoxy couplings. Tom ntej no, lub tes tsho hlau lead yog muab tso rau, thiab cov cores yog twisted los yog txuas nrog soldering. Tom qab kev teeb tsa tiav lawm, lub Hoobkas rwb thaiv tsev yog rov qab los nrog roj-soaked ntawv. Txhawm rau rov qab cov rwb thaiv tsev nyob ze ntawm qhov chaw ntawm cov cores, tib daim ntawv cable yog siv.

Lead couplings tsuas yog nyob rau hauv lub tsev xwb, enclosing lawv nyob rau hauv tshwj xeeb steel tiv thaiv casings. Nyob rau hauv cov ntaub ntawv ntawm underground nteg, leaky casings los yog fiberglass kav yog siv.

cable installation kub
cable installation kub

Lawv yuav tiv thaiv kev sib txuas ntawm kev puas tsuaj. Lwm hom yog sling-connecting couplings. Lawv ua haujlwm kom txwv qhov sib txawv ntawm cov kab hluav taws xob hluav taws xob nrog cov ntawv pov thawj impregnated.

Zaj lus

Yuav kom muab lub tsev lossis cov qauv siv hluav taws xob, nws yog ib qho tsim nyog yuav tsum tau muab cov hlua hluav taws xob kom raug. Muaj ntau txoj hauv kev rau qhov no, piv txwv li, hauv av thiab huab cua. Kuj tseem muaj txoj hauv kev rau nruab sab hauv tsev. Kev teeb tsa ntawm cov cables yuav siv qhov chaw tom qab kev npaj cov ntaub ntawv ntawm qhov project. Cov txheej txheem no yog ua los ntawm cov kws tsim qauv tsim. Tag nrho cov txheej txheem yog tswj hwm los ntawm lub xeev cov tub ceev xwm hauv kev lag luam hluav taws xob. Ntau hom couplings ua haujlwm sib txuas. Lawv tuaj yeem txuas ob lub cables rau ib leeg, thiab txuas rau ntau yam khoom siv hluav taws xob ntawm lub zog siab thiab qis.

Yog li peb xam pomYuav ua li cas rau nruab hluav taws xob cables thiab xov hlau.

Pom zoo: