Txias-Shrink vs. Thaum tshav kub kub-Shrink Cable Terminations: Vim li cas tus nqi sib txawv?

Thaum tswj tus ntoo khaub lig- txuas cables- nrog rau lawv cov txheej txheej txheej txheej txheej txheej, hlau armor, puab sheaths, muab tub lim, tiv thaiv tooj liab, semiconductive txheej, thiab cov tub ntxhais conductors- xaiv cov khoom siv cable zoo yog qhov tseem ceeb.

Ntawm cov kev xaiv no,

txias -shrink cable terminationsnquag raug nqi ntau zaus ntau dua

kub-shrink cable terminations. Dab tsi ua rau tus nqi sib txawv loj no? Cov lus teb yog nyob rau hauv engineering tom qab plaub lub ntsiab kev cov nyom: sealing, rwb thaiv tsev, hluav taws xob tswj, thiab installation workmanship.

1. Sealing Performance & "Cable Ua pa"

Feem ntau cov kev txiav cable ua haujlwm nyob rau hauv qhov xav tau nyiaj siv ua haujlwm, sab nraum zoov, lossis ncaj qha - faus ib puag ncig. Kev tiv thaiv dej thiab noo noo ingress yog qhov tseem ceeb rau kev tiv thaiv tus ntoo khaub lig- txuas cable qauv.

• Teeb meem nrog Rigid Seals:Cov txheej txheem potting ib txwm siv (siv asphalt lossis epoxy resin) muaj cov kev tsim kho nyuaj thiab tswj tsis tau zoo. Cov kev daws teeb meem niaj hnub nyiam siab - elasticity sealants rau kev yooj yim kev teeb tsa thiab kev ua haujlwm ruaj khov nyob rau hauv qhov kub thiab txias.

   

• Qhov Txias -Shrink Advantage:Tag nrho txias-shrink hwj chim cable accessories yog tsim los ntawm cov kua silicone roj hmab, ua ntej- nthuav nyob rau hauv lub Hoobkas mus rau tshem tau cov yas txhawb cores. Thaum positioned thiab cov tub ntxhais yog rub, cov khoom ib txwm cog lus radially nyob ib ncig ntawm lub cable.

• Qhov "Cable Breathing" Factor:Vim hais tias silicone roj hmab yog elastic heev, nws dynamically expands thiab sib cog lus nrog rau lub cable raws li load tam sim no thiab ambient kub fluctuate. Qhov kev ua haujlwm tsis tu ncua no tshem tawm cov khoob hauv qhov chaw uas cov dej noo tuaj yeem sau tau thiab ua rau muaj kev puas tsuaj rau dielectric.

• Thaum tshav kub kub -Shrink Limitation:Thaum tshav kub kub-shrink accessories yog cross-txuas ntawm irradiation kom ua tiav thermal shrinkage (yuav tsum tau ib lub teeb rhuab mus rau 100-140℃). Txawm li cas los xij, lawv tsis muaj lub cim xeeb ruaj khov. Thaum txias hauv qab 80 degree, mismatched thermal expansion coefficients ntawm lub cable thiab cov polymer rigid yuav ua rau delamination thiab microcracking, tso cai rau noo noo nkag mus rau hauv lub sij hawm thauj mus los.

2. Rwb thaiv tsev Performance & Material txwv

Cable terminations yuav tsum muaj cov theem ruaj khov - mus rau -theem thiab theem - mus rau - hauv av rwb thaiv tsev los daws cov hluav taws xob hluav taws xob thiab cov xwm txheej tsis tau xav txog overvoltage.

Theem-rau-Phase Insulation

• Txias-Shrink (Silicon Rubber):Features tshwj xeeb siab dielectric zog ntawm24 kV / hli. Vim tias qhov muaj peev xwm ntawm cov khoom siv no, nws ua tiav qhov kev sib cais ntawm qhov hluav taws xob muaj zog nrog nyias profile, yuav tsum tau ua haujlwm tsawg kawg nkaus ntawm phab ntsa tuab ntawm tsuas yog 12 hli.

• Thaum tshav kub kub-Shrink (Composite Polymers):Tus ntoo khaub lig- txuas polymer sib xyaw siv nyob rau hauv tshav kub- cov khoom siv shrinkage nqa lub zog dielectric qis dua ntawm1.8-2.0 kV / hli. Yuav kom ua tau raws li qhov kev nyab xeeb ntawm hluav taws xob ua tau zoo ntawm txias-shrink, cua sov-shrink phab ntsa yuav tsum tau beefed los ntawm ib tug ntxiv 3-4 mm, uas ua rau ib tug tag nrho thickness ntawm 15-16 mm.

Theem - mus rau -Insulation av

Txhawm rau thaiv cov dej ntws ntws tawm ntawm qhov siab ntawm - muaj peev xwm thiab hauv av conductors, cov khoom siv yuav tsum muaj kev ruaj ntseg txaus sab hauv qhov deb.

• Txias -shrink terminations tuav nruj, nruam clamping quab yuam uas zoo seals tawm noo noo. Thaum lawv qhov theoretical yam tsawg kawg nkaus sab hauv creepage nrug yog 70 mm, ib qho qauv tsim ntawm90mm uafeem ntau yog siv los lav cov npoo kev nyab xeeb.

• Thaum tshav kub kub- cov khoom siv shrinkage cia siab rau ib qho - lub sij hawm adhesion ntawm qhov pib qhov kub thiab txias. Yog tias tsis muaj lub zog txuas ntxiv ntawm cov roj hmab silicone, lawv ntsib qhov ntev dua - lub sij hawm muaj kev pheej hmoo ntawm rwb thaiv tsev degradation nyob rau hauv cyclic ib puag ncig kev nyuaj siab.

3. Hluav taws xob Field Control

Kev tswj cov kev ntxhov siab siab ntawm cov ntaub thaiv npog qhov chaw ntawm qhov siab -voltage cable yog ib qho teeb meem loj. Txias-shrink thiab tshav kub-shrink technologies mus txog qhov teeb meem no los ntawm txawv engineering philosophies.

• Geometric Stress Cone (Cold-Shrink):Txias -shrink terminations siv lub Hoobkas-moulded geometric stress cone. Los ntawm kev vam khom cov duab thiab cov radii, cov khoom siv kho kom zoo txawm tias qhov kev ntxhov siab ntawm hluav taws xob. Vim tias cov duab tau txiav txim siab thaum tsim khoom, nws qhov kev ua tau zoo yog qhov yooj yim rau kev sim, ntsuas, thiab txheeb xyuas ua ntej nws puas tawm hauv lub hoobkas.

• Linear Parameter Grading (Tshav kub-Shrink):Thaum tshav kub kub- txo qis kev xaiv tswj cov hluav taws xob hluav taws xob los ntawm kev hloov cov khoom siv lub zog-tshwj xeeb kho qhov ntim ntawm $10^8 - 10^{11}\\ \\Omega\\cdot\\text{cm}$ thiab tus txheeb ze permittivity ntawm 25. Cov txheej txheem tshuaj thiab cov khoom siv no yog intricate thiab rhiab heev thaum lub sij hawm installation. Yog tias qhov cua sov tsis sib npaug, nws tuaj yeem ua rau cov khoom tsis ruaj khov thiab tsis sib haum xeeb hauv daim teb.

Summary: Yog vim li cas txias -Shrink nqi ntau dua

Tus nqi hwm ntawm txias -shrink technology los raukua silicone roj hmab chemistry, Hoobkas tswj kom zoo, thiab ntev - lub sij hawm cia siab rau.

Thaum tshav kub-txo lwm txoj kev txo qis qis dua- cov nqi khoom siv pem hauv ntej, lawv yuav tsum tau daim ntawv tso cai ua haujlwm kub (rau cov hluav taws kub hnyiab), vam khom rau cov kev txawj nruab, thiab tuaj yeem raug kev txom nyem los ntawm delamination dhau sijhawm. Txias-shrink accessories tshem tawm kev teeb tsa tib neeg yuam kev los ntawm lawv rub-thiab-shrink mechanism thiab dynamically tiv thaiv cov cable thoob plaws hauv nws lub neej- ua rau lawv qhov kev xaiv zoo tshaj plaws rau cov txheej txheem tseem ceeb thiab huab cua hnyav.