Hluav taws xob lub cev muaj zog thiab cov khoom siv hauv tsev ntiag tug thiab cov chaw tsim khoom tau txuas nrog cov xaim hluav taws xob nrog ntau hom cable. Hom tam sim no nyob rau hauv cov hlau yog sib txawv. Kev siv dav pom pom VVG cable. Cov koom haum tsim feem ntau suav nrog cov xaim no hauv qhov project specification. Deciphering VVG cov xov hlau pab cov tuam txhab xaiv cov khoom tsim nyog. Cov npe tshwj xeeb tso cai rau koj kom paub qhov txawv ntawm hom xov hlau. Lub cim ntawm VVG cable, kev txiav txim siab uas siv rau lub rwb thaiv tsev, yuav qhia cov kws tshaj lij hluav taws xob txhua yam.
VVG cable yog dab tsi?
Cov ntawv luv rau kev txiav txim siab cable nqa cov ntaub ntawv hais txog nws qhov kev tsim khoom. Nws qhia txog qhov pom zoo kom txuas thiab yuav ua li cas nteg, sab nraum zoov lossis hauv av, qhov twg nws raug tso cai siv thiab qhov ntsuas cua pom zoo yog dab tsi.
Muag khoom siv hauvfais fab mov, thiab ntau yam ntawm cov xov hlau los ntawm hom rwb thaiv tsev thiab tsim, muab lub sijhawm rau tus neeg yuav khoom xaiv rau cov khoom uas nws xav tau. Nws yuav nthuav rau cov neeg siv hluav taws xob tshiab thiab cov neeg siv khoom zoo tib yam kom paub ntau npaum li cas ntawm VVG cable hom nrog kev txiav txim siab muaj nyob hauv khw muag khoom.
Txoj kev tiv thaiv cable los ntawm kev qhib hluav taws yog tsim los ntawm cov tuam txhab cable. Tsim thiab siv hluav taws kub rwb thaiv tsev VVG. Hauv qab no yog qhov layout ntawm kev hloov kho:
• VVGng;
• VVGng FrLs;
• VVGng Ls;• VVGng Hf;
• VVGng FrHf.
Txhua tsab ntawv nyob rau hauv lub cim thiab lub npe muaj ib tug decoding, VVG t, VVG ng tsis yog ib tug txheej ntawm cov tsiaj ntawv. Yog li ntawd, koj yuav tsum paub koj tus kheej nrog cov ntawv sau.
Cia li nrog cov ntawv sau
Lub npe ntawm cable VVGng Ls sawv cev rau, nqa cov ntaub ntawv hais tias thaum muaj hluav taws kub, lub rwb thaiv tsev ntawm cov hlau emits pa taws tsawg kawg nkaus.
Tus VVGng FrLs cable tsis pab tua hluav taws hauv qhov qhib nplaim taws. Vim cov rwb thaiv tsev melting, cov pa taws tsawg tsawg.
Cov khoom tom ntej - nrog rau kev txiav txim siab VVGng Hf. Thaum nws raug tshav kub, xws li thaum hluav taws kub thiab rwb thaiv tsev melting, tsis muaj gases. Kev xaim tsis corrode.
Txoj kab tshiab VVGng FrHf muaj txhua yam zoo tshaj plawsspecifications ntawm cov cables saum toj no.
khoom rwb thaiv tsev
Cov kev cai tshwj xeeb yog tsim rau cov khoom siv insulating siv hauv kev tsim cov khoom siv cable, suav nrog los ntawm lub tuam tsev tua hluav taws. Cov khoom siv PVC (polyvinyl chloride) muaj ib qho tshwj xeeb hauv kev sib raug zoo nrog lwm cov polymers siv rau kev tsim cov khoom yas. Cov khoom siv PVC tsis cuam tshuam nrog hluav taws. Vim cov cuab yeej no, PVC yog siv rau hauv kev tsim cov insulating txheej rau cables.
Khoom siv rau kev ua cables:
- Hom tseem ceeb ntawm VVG insulating cov ntaub ntawv yog ob-txheej insulating txheej. Khoom siv PVH (polyvinylchloride). Tsis muaj rwb thaiv tsev ntxiv.
- Cov tub ntxhais tooj liab rwb thaiv tsev ntawm VVGng cable yog ua los ntawm cov ntaub ntawv PVC uas tsis yog-combustible.
- Halogen-dawb PVC, siv los ua cov khoom siv insulating rau VVG Ls hlau, tsis tso pa taws thaum yaj. Siv thaum txhim kho cov hlua hluav taws xob, hauv cov chaw muaj neeg coob.
- Cable rub, qhov twg nws tuaj yeem ua rau hluav taws, yog nqa los ntawm VVGng FrLs hom. Cov rwb thaiv tsev uas nthuav tawm yog hluav taws resistant thiab tsis emit cov pa phem. Lub cable nrog VVGng FrLs kev txiav txim siab yog siv rau kev teeb tsa sab hauv tsev thiab sab nraum zoov nrog kev kub ntxhov siab.
Cia li hais txog kab cim kab. Wb tau paub txog VVG kev txiav txim siab ntawm cov xov hlau:
• P - polymer hlau rwb thaiv tsev.
• V - polyvinyl chloride.• PV - ib pawg ntawm cov ntaub ntawv raws li polyethylene.
Kev txiav txim siab ntawm tsab ntawv hauv qab no tso cai rau koj kom paub qhov muaj pes tsawg leeg ntawm cov rwb thaiv tsevkab.
• B - sab nraud PVC rwb thaiv tsev.
• Shv - tiv thaiv cov cores nyob rau hauv daim ntawv ntawm lub hose.
• P - sab nraud polymer rwb thaiv tsev.• Shp - Sab nraud rwb thaiv tsev ua los ntawm polyethylene hose.
Kev tiv thaiv ntawm VVG cable (kev txiav txim siab hauv qab) los ntawm kev puas tsuaj rau lub tshuab muaj nws tus kheej tsim.
• B - armored cable nrog nyuaj txheej.
Nqe ntawm cable cores thiab nws tus nqi
Thaum txhim kho cov khoom siv hluav taws xob, nws yog ib qho tseem ceeb uas yuav tsum xaiv qhov raug tus ntoo khaub lig ntawm tus neeg xyuas pib. Kev sib kis ntawm cov hluav taws xob tam sim no nyob ncaj qha rau ntawm qhov hla ntawm cov xov hlau. Cov motors thiab cov khoom siv txuas nrog lub network siv hluav taws xob. Cov hlua hluav taws xob thaum tam sim no dhau los ntawm nws pib ua kom sov. Cov cua kub ntawm cov xaim nrog qhov tsis raug xaiv qhov hla ntu ntawm cov tub ntxhais tuaj yeem ua rau muaj hluav taws tsis zoo. Qhov hla ntawm cov xov hlau yuav tsum tau noj peb caug feem pua ntau. Muaj tam sim no poob hauv cable, uas yuav tsum tau pom ua ntej. Tom qab ua tiav cov kab thaiv zais hauv tsev, nws nyuaj rau rov qab poob rau yav tom ntej.
Device VVG-p.webp" />
Tus ntoo khaub lig ntawm hom kab no yog los ntawm 1.5 txog 16 squares. Tus xov tooj nws muaj yog ob lossis peb.
Kev tsim cov cim kab:
- B - cores hauv PVC rwb thaiv tsev.
- B (thib ob) - PVC sheath ntawm cable.
- G - tsis muaj kev tiv thaiv kab.
- P - kev npaj ntawm cov cores yog parallel, tiaj.
- Ng - rwb thaiv tsev kub tsis txaus siab.
- tub ntxhais tooj liab puag ncig zoo ib leeg-xaim thawj chav kawm;
- cov khoom siv rwb thaiv tsev - PVC;
- xim xaim;
- PVC sheath uas txo cov khoom siv hluav taws xob.
Daim ntawv thov tseem ceeb ntawm cov kab no yog nyob rau hauv kev sib kis thiab xa tawm ntawm AC lub zog nrog zaus ntawm 50 Hz, lub zog ntawm 0.66-1.0 kV.
kab VVGozh
Kev xav tau zoo hauv thaj chaw ntawm cov khoom siv hluav taws xob yog tshwm sim los ntawm cov kab hluav taws xob nrog ib ntu ntawm 3x4 hom VVGozh. Qhov muaj pes tsawg leeg ntawm no tooj liab cable muaj xws li conductors them nrog PVC rwb thaiv tsev.
- B - vinyl core insulation.
- B (thib ob) - vinyl plhaub.
- G - liab qab.
- Ozh - ib leeg-xaim conductors.
VVGozh cable tsim
Wire, conductive, tooj liab, thawj lossis thib ob chav GOST 2483. Cov duab ntawm cov tub ntxhais yog puag ncig lossis sector-puab. Siv rwb thaiv tsev ua los ntawm PVC plasticizer, hlawv ntawm qhov qhib hluav taws rwb thaiv tsev yog txo. Cable conductors ntawm ob, peb, plaub thiab tsib conductors yog twisted nyob ib ncig ntawm ib tug PVC core. Sab nrauv ntawm lub cable yog nplaim hluav taws kub PVC.
PVC cable rwb thaiv tsev. Cov kab hluav taws xob hauv cov xim sib txawv. Dawb los yog daj. Xiav thiab ntsuab. Dub los yog xim av, liab thiab crimson.
Scope ntawm VVG-p.webp" />
Cable ua haujlwm tau tso cai rau hauv av, hauv dej thiab pas dej. Nws yog siv rau qhov kub ntawm -50 0С txog +500С. Kev tso qhov siab tshaj qhov dej hiav txwv tau tso cai ntawm qhov siab ntawm 4300 meters. Koj tuaj yeem nteg cov kab hauv av, dej, hauv huab cua, uas yog, ntawm cov ncej thiab raws phab ntsa ntawm cov tsev thiab cov tsev.
Tag nrho cov yam ntxwv saum toj no xa mus rau VVGozh cable, kev txiav txim siab uas qhia peb tias cov hlau yog ua los ntawm tooj liab xov hlau nrog hla ntu ntawm 3x4. Nws yog siv nyob rau hauv cheeb tsam qaum teb thiab hauv cheeb tsam uas muaj huab cua sov thiab huab cua sov.
Lub Tswv Yim Tsim Hluav Taws Xob
Kev teeb tsa Cable nrog VVG kev txiav txim siab tuaj yeem nqa tawm raws cov phab ntsa ntawm cov tsev thiab cov qauv. Kev tso tawm yog nqa tawm raws cov ncej thiab ncua kev kawm ntawm cables. Kev siv hom kab no tso cai rau qhov chaw uas tsis muaj kev pheej hmoo ntawm hluav taws. Nws yog qhov zoo dua los tso rau ntawm phab ntsa plastered lossis phab ntsa ua los ntawm cov phab ntsa qhuav.
Yog tias muaj kev pheej hmoo ntawm kev puas tsuaj rau cov khoom siv, lub cable yuav tsum tau tiv thaiv. Pre-installed steel kav rau hauv uas cov xaim tau muab tso rau hauv kev tiv thaiv zoo heev. Xws li tso rau hauv cov tsev ntoo yog qhov ncaj ncees tshaj plaws. Lub tes tsho corrugated uas tiv thaiv cov xaim yog dav siv hauv kev tsim kho. Ntau yam kev tiv thaiv cable raws kuj siv. Tso cov khoom nrog VVG cable decoding hauv strobe tsis pom zoo. Rau qhov no, nws yog qhov zoo dua los siv VVGng tus neeg xyuas pib. Nws yog tsim los rau kev zais thaiv. Muaj cov lus pom zoo thiab cov cai uas piav qhia txog cov cai rau kev teeb tsa ua haujlwm siv VVGng cable.
Txoj cai rau kev ua haujlwm sab nraum zoov nrog cov khoom siv cable
Thaum tso VVG tus neeg xyuas pib hauv av, yuav tsum tau ua raws li cov cai nruj. Kev tiv thaiv kab mobntawm hom no yog tsis tuaj. Kev siv cov thawv pob zeb, cov kab txuas thiab cov kav dej tiv thaiv kev puas tsuaj rau cov khoom siv cable. Kev tiv thaiv teeb liab yog tam sim no dav siv los hloov cov cib liab siv ua ntej. Ua los ntawm kev tiv thaiv nyob rau hauv daim ntawv ntawm polymer daim hlau, uas muaj zoo heev indestructible yam ntxwv.
Muab xuab zeb cushion rau hauv trench. Ib lub cable yog pw rau ntawm nws, nyob rau saum lub ntiaj teb yog poured thiab rammed. Lub thickness ntawm cov xuab zeb yuav tsum yog tsawg kawg yog 20 centimeters. Tom qab lub cable yog backfilled, tiv thaiv daim hlau yog nteg, uas yog tseem them nrog xuab zeb. Daim kab xev teeb liab tau muab tso rau saum cov xuab zeb, ceeb toom txog qhov muaj cov kab hluav taws xob tso.
Txiav ib lub armored cable yog txoj kev daws teeb meem rau kev ua haujlwm hauv av. Tus nqi ntawm nws cov nteg yog siab dua tus nqi ntawm VVG cable. Lub neej kev pab cuam yog tib yam, tab sis qhov lav ntawm kev tiv thaiv kev puas tsuaj rau cov hlau armored yog ntau dua.
Tom qab nyeem tsab xov xwm no, tus neeg yuav khoom yooj yim, tsis yog tus kws tshaj lij, yuav raug xaiv cov kab tsim nyog. Raws li qhov tseeb tias kev ua lag luam niaj hnub no muaj ntau hom thiab ntau hom cable, nws tuaj yeem nyuaj heev rau kev xaiv yam tsis muaj kev paub hauv cheeb tsam no. Yog tias koj tseem muaj kev tsis ntseeg thaum yuav, nws yog qhov zoo dua los sab laj nrog tus muag khoom ntawm cov khoom siv hluav taws xob. Qhov no tseem ceeb heev, vim tias kev nyab xeeb ntawm txhua tus neeg nyob hauv thaj chaw nyob ntawm qhov zoo ntawm cov xaim.
