RTV Silicone Rubber Txheej rau iav Insulators

Txheej iav insulators nrog silicone roj hmab yog feem ntau los txhim kho lawv cov kev tiv thaiv rau flashover thiab kev cia siab rau kev ua hauj lwm nyob rau hauv cov pa phem. Qhov no yog tshwj xeeb tshaj yog nyob rau hauv cov ntug hiav txwv dej, industrially polluted thaj chaw, thiab tej thaj chaw uas muaj plua plav cua daj cua dub los yog ntsev tsuag. Cov laj thawj tseem ceeb yog raws li nram no:

1️⃣ Txhim Kho Hydrophobicity: Qhov saum npoo ntawm iav insulators yog hydrophilic, yooj yim tsim cov yeeb yaj kiab dej txuas ntxiv thaum raug los nag lossis qhov chaw ntub dej.

Silicone roj hmab, ntawm qhov tod tes, yog hydrophobic heev, ua rau cov dej los ua cov tee dej tsis yog zaj duab xis.

Cov teebmeem yog:
Txo qhov dej ntws tawm tam sim no
Txo qhov pheej hmoo flashover
Txhim kho kev ua haujlwm kev nyab xeeb

2️⃣ Tiv thaiv cov pa phem Flashover: Hauv qhov chaw muaj kuab paug, cov pa phem hauv qab no yooj yim sau rau ntawm qhov chaw insulator:
Ntsev tsuag (ntawm ntug hiav txwv)
Muaj plua plav
Coal tshauv
Plua plav
Thaum ntub, cov pa phem no tuaj yeem tsim cov txheej txheem conductive, uas ua rau muaj kuab paug flashover.

Silicone roj hmab coatings tuaj yeem:
Txhim kho hydrophobicity
Txo qhov tsim ntawm cov yeeb yaj kiab dej conductive
Tseem ceeb txo qhov tshwm sim ntawm flashover

3️⃣ Hydrophobic Hloov
Silicone roj hmab muaj cov yam ntxwv tseem ceeb heev:

➡ Hydrophobic Hloov
Txawm hais tias cov khoom tsis huv ua raws li qhov chaw, qhov qis -molecular- hnyav siloxanes hauv cov roj hmab silicone tsiv mus rau saum npoo ntawm cov kab mob, ua rau cov kab mob tsis zoo hydrophobic thiab.
Qhov no txhais tau tias:
Txawm tias qias neeg
Qhov saum npoo tseem tsis tshua muaj peev xwm tsim cov yeeb yaj kiab dej

4️⃣ Txuas lub neej ntev ntawm cov kab hluav taws xob qub
Feem ntau cov kab kis tau siv thaum chiv keeb:
Tempered iav insulators
Porcelain insulators
Hloov lawv ncaj qha nrog cov insulators sib xyaw yuav raug nqi.

Yog li ntawd, ntau lub tuam txhab hluav taws xob xaiv rau:

➡ Siv RTV (Room Kub Vulcanized Silicone Txheej) rau cov insulators qub.

Qhov zoo:
Tsis tas yuav hloov cov insulators
Kev tsim kho yooj yim
Tus nqi qis

5️⃣ Txhim kho arc tsis kam thiab huab cua tsis kam
Silicon roj hmab txheej kuj:
Txhawb kom qhuav - them arcing
Resistant UV hluav taws xob
Resistant kev laus
Txhim kho lub sij hawm ntev - stability ntawm insulators

Kev ua lag luam tam sim no rau txheej iav insulators nrog silicon roj hmab (RTV silicon txheej) feem ntau yog ib qho ntawm "kev loj hlob ruaj khov, tab sis ib nrab hloov los ntawm cov khoom siv hluav taws xob hauv lub sijhawm ntev." Qhov no tuaj yeem pom los ntawm peb yam: kev lag luam tiam sis, kev xav tau ntawm kev lag luam, thiab kev hloov thev naus laus zis.

I. Luv- thiab Nruab Nrab-Lub Sij Hawm: Kev Xav Tau Kev Lag Luam txuas ntxiv mus ntxiv

Los ntawm kev lag luam thoob ntiaj teb hluav taws xob thiab kev saib xyuas kev saib xyuas, qhov kev thov rau RTV txheej tau nce zuj zus.

1️⃣ Kev laus kis kab mob xav tau kev kho dua tshiab

Ntau lub teb chaws tseem siv ntau lub iav los yog porcelain insulators, thiab hloov lawv txhua tus ncaj qha yog kim heev.

Yog li ntawd, cov tuam txhab fais fab feem ntau xaiv rau:

➡ Txau RTV silicone roj hmab txheej rau ntawm cov insulators uas twb muaj lawm

Qhov no tuaj yeem:

Txhim kho hydrophobicity

Txo cov dej xau tam sim no

Tiv thaiv flashover
RTV txheej tuaj yeem txhim kho lub rwb thaiv tsev tiv thaiv kom tsis txhob muaj kab mob thiab txo kev tu thiab tu ntau zaus.

2️⃣ Ntiaj Teb Lub Hwj Chim Loj Tshaj Tawm Tsav Kev Xav Tau

Nrog rau kev nthuav dav ntawm cov phiaj xwm hluav taws xob thiab kev loj hlob ntawm kev thov hluav taws xob, ntau lub teb chaws tab tom pib ntxiv dag zog rau kev ntseeg tau ntawm rwb thaiv tsev.

Kev tshawb fawb qhia tias:
RTV coatings suav txog kwv yees li 54% ntawm kev ua lag luam sib koom hauv cov kab sib kis.
Cov tuam txhab hluav taws xob yog cov neeg siv ntau tshaj plaws, suav txog ntau dua 60% ntawm kev thov.
Tshwj xeeb tshaj yog:
HVDC kis kab mob,
Ultra-cov kab hluav taws xob siab, thiab
Cov kab sib txuas ntawm ntug dej hiav txwv txhua tus xav tau kev txhim kho rwb thaiv tsev.

3️⃣ Kev loj hlob sai hauv kev thov hauv cov tebchaws tshiab.
Kev tshawb nrhiav kev lag luam qhia tau tias:
Asia tam sim no yog lub khw loj tshaj plaws.
Middle East thiab Africa tau ntsib qhov kev loj hlob sai tshaj plaws, nrog kev loj hlob txhua xyoo ntawm kwv yees li 9%.
Qhov no yog vim cov cheeb tsam no:
muaj cua daj cua dub ntau ntau,
ntsev tsuag heev, thiab
Kev tsim kho hluav taws xob ceev ceev.
RTV txheej tuaj yeem txo qhov xwm txheej flashover.

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