Cov laj thawj rau kev tawg ntawm tus kheej ntawm iav insulators tuaj yeem muab faib ua ob pawg: cov khoom lag luam zoo thiab cov laj thawj ntawm kev ua haujlwm sab nraud, thiab cov xwm txheej tseeb feem ntau muaj ob qho laj thawj tib lub sijhawm.
① Cov khoom zoo vim li cas
Feem ntau cov iav insulator iav qhov chaw muaj impurities hais, feem ntau yog NIS hais. Lub xeev hloov ntawm NIS tsis tiav nyob rau hauv cov txheej txheem ntawm melting thiab annealing ntawm iav qhov chaw. Tom qab cov insulator tau muab tso rau hauv kev ua haujlwm, nws ntseeg tau tias cov theem hloov pauv thiab nthuav dav tshwm sim maj mam, ua rau tawg hauv lub khob. Thaum lub cheeb ntawm particle impurities tsawg dua li ib qho nqi, nws yuav tsis tuaj yeem raug tshem tawm los ntawm qhov txias thiab thermal shock, uas ua rau nws tus kheej siab detonation tus nqi ntawm lub insulator hauv kev ua haujlwm. Thaum cov impurity hais nyob rau hauv lub puab tensile kev nyuaj siab txheej ntawm iav, qhov tshwm sim ntawm nws tus kheej tawg yog siab dua, vim hais tias lub iav nws tus kheej yog ib tug nkig khoom, uas yog resistant rau siab tab sis tsis tensile, yog li feem ntau ntawm cov iav tawg yog. tshwm sim los ntawm tensile kev nyuaj siab.
Nta:
1, Tus kheej-detonation tshwm sim los ntawm cov impurity hais nyob rau hauv lub siab dua nyob rau hauv thawj peb lub xyoos ntawm kev ua hauj lwm, thiab yuav maj mam poob tom qab ntawd, uas yog ib tug tseem ceeb txoj cai rau txiav txim qhov ua rau ntawm tus kheej-detonation.
2, Qhov tshwm sim ntawm tus kheej tawg ntawm qhov sib txawv ntawm txoj hlua insulator yog tib yam;
② Sab nraud ua rau
Feem ntau muaj kuab paug thiab kub hloov pauv. Nyob rau tib lub sijhawm ntawm kev ua qias tuaj, noo noo thiab hluav taws xob, cov xau tam sim no ntawm cov khoom siv hluav taws xob loj dhau, ua rau ib feem ntawm txoj siv tawv qhuav. Thaum cov huab cua tawg tshwm sim nyob rau hauv txoj siv tawv qhuav, lub arc generated yuav erode lub iav kaus tiab, thiab thaum lub corrosion tob tob, nws yuav ua rau nws tus kheej tawg. Yog hais tias lub insulator raug ntaus los ntawm xob laim thaum lub sij hawm cov txheej txheem saum toj no, qhov tshwm sim ntawm tus kheej tawg ntawm lub iav insulator uas tau eroded los ntawm lub arc yuav zoo heev. Cov pa phem ntau dhau yog qhov tseem ceeb, uas tej zaum yuav muaj ntsev ntau dhau, lossis ntau cov hmoov hlau hmoov ntau dhau hauv cov pa phem.
Nta:
1, Kev tshem tawm tus kheej yuav tsis pom tseeb ob peb xyoos ua ntej kev ua haujlwm, thiab nws yuav tshwm sim nyob rau lub sijhawm tom qab ob peb xyoos ntawm kev ua haujlwm (kev hloov pauv loj hauv cov dej phwj hauv zos ua rau muaj kuab paug ntau dhau);
2, Qhov tshwm sim ntawm tus kheej tawg ntawm qhov kawg siab kawg thiab tsis tshua muaj siab kawg ntawm b insulator hlua yog ntau dua li qhov nruab nrab (qhov hluav taws xob ntawm qhov siab siab kawg thiab qhov kawg siab kawg yog qhov muaj zog dua, thiab lub hauv paus creepage tshwm sim ntawm steel taw ntawm lub insulator ua ntej thaum muaj kuab paug hnyav heev);
3, Cov hlau ko taw ntawm cov tsis-tus kheej-detonating insulator ntawm tib lub pej thuam raug puas tsuaj (lub zos arc tshwm sim los ntawm cov pa phem ntau dhau ua rau cov iav nyob ze ntawm cov hlau ko taw), thiab muaj cov tawg me me hauv lub kaus;
