Cov yam ntxwv tso tawm ntawm cov khoom sib txuas tom qab insulator yog sib txawv raws li lub zog zaus voltage, kev khiav hauj lwm overvoltage thiab xob laim overvoltage. Feem ntau, tsuas yog qhov deb ntawm qhov nkag tuaj yeem ua tau raws li kev sib koom ua ke ntawm rwb thaiv tsev raws li lub zog zaus voltage. Tom qab tag nrho, lub zog zaus voltage yog siv rau lub insulator ntev. Cov yam ntxwv tawm ntawm kev hloov hluav taws xob overvoltage thiab xob laim overvoltage feem ntau cuam tshuam los ntawm qhov ntev ntawm cov hlua insulator. Ntawm lawv, kev khiav hauj lwm overvoltage yog nyob rau hauv overvoltage, yog li ntawd lub hwj chim ntawm pej thuam qhov siab tsis yog xam, thaum lub xob laim overvoltage yog sab nraud overvoltage, yog li tus pej thuam siab yuav tsum tau txiav txim siab. Tsis tas li ntawd, lub overvoltage waveform ntawm kev khiav hauj lwm overvoltage yog ze rau ntawm lub hwj chim zaus voltage. Yog li ntawd, tus nqi xoom insulator yuav cuam tshuam nws cov yam ntxwv tawm. Yog li ntawd, thaum xam qhov nro insulator nyob rau hauv kev khiav hauj lwm overvoltage, ib tug tej yam xov tooj ntawm pes tsawg tus nqi insulators yuav tsum tau ntxiv rau lub ncua kev kawm ntawv txoj hlua. Txawm li cas los xij, vim lub sij hawm luv luv, txoj hlua ntev yog feem ntau suav hais tias yog xob laim overvoltage, thiab xoom insulator yuav tsis txo cov hlua ntev ntawm cov hlua insulator. Yog li ntawd, nws tsis yog yuav tsum tau ntxiv pes tsawg tus nqi insulators nyob rau hauv rwb thaiv tsev kev sib koom tes ntawm xob laim overvoltage. Txawm hais tias nws yog lub hwj chim zaus voltage, kev khiav hauj lwm overvoltage thiab xob laim overvoltage, cov yam ntxwv ntawm qhov sib txawv ntawm cov insulators tsis zoo vim muaj huab cua ntom ntom tom qab qhov nce siab. Yog li ntawd, kev kho qhov siab yuav tsum tau ua.
1. Fais fab zaus voltage
Nws tsuas yog yuav tsum tau ua kom tau raws li qhov kev nce toj, thiab txoj kev creepage tuaj yeem siv rau kev ncua thiab tensioning! Txoj kev no tsis tas yuav kho qhov siab ntauwd lossis xoom tus nqi kho (creepage yog tus nqi empirical, xav txog kev cuam tshuam ntawm xoom insulator).
2. xob laim overvoltage
Thaum tus pej thuam qhov siab tsawg dua 40m, qhov ntev ntawm cov hlua insulator yuav tsum ua kom tau raws li qhov xav tau yam tsawg kawg nkaus hauv cov lus 7.0.2; Thaum tus pej thuam siab tshaj 40m, nws yuav tsum tau kho raws li tus pej thuam siab. Qhov ntev ntawm cov hlua hloov kho insulator yog qhov ntev yuav tsum tau rau xob laim overvoltage. Tus naj npawb ntawm cov insulator yuav tsum tau hloov los ntawm qhov ntev (ntev muab faib los ntawm qhov siab ntawm insulator yuav tsum tau siv).
3. Kev khiav hauj lwm overvoltage
Ua tau raws li qhov xav tau yam tsawg kawg nkaus ntawm lub rooj 7.0.2. Nws yog siv los ua pov thawj. Txij li thaum ntau yam kev khiav hauj lwm overvoltage los yog cov yam ntxwv tawm ntawm insulator nyob rau hauv kev khiav hauj lwm overvoltage tsis tau muab, qhov ntev ntawm insulator tsis tuaj yeem suav ua ntej, thiab tom qab ntawd tus naj npawb ntawm cov khoom yuav raug xam. Yog siv nro, xoom ntxiv. Txawm hais tias qhov siab ntawm cov hlua insulator, qhov sib npaug ntev ntawm cov hlua insulator tom qab xoom tus nqi txhaum yuav tsum ua kom tau raws li txoj hlua ntev uas yuav tsum tau ua hauv lub rooj no. Qhov no yog qhov tsawg kawg nkaus txoj hlua ntev yuav tsum tau, thiab tsis muaj pes tsawg tus nqi (yog li ntawd, tus naj npawb ntawm xoom qhov tseem ceeb ntawm txoj hlua kev ntxhov siab yuav tsum tau ntxiv tom qab ntau qhov kev kho tiav, thiab nws yuav yog xoom tom qab kho!). Nyob rau hauv tej yam kev mob, tus pej thuam qhov siab tsis cuam tshuam rau cov yam ntxwv tawm thiab overvoltage tus nqi ntawm insulators nyob rau hauv kev khiav hauj lwm overvoltage. Yog li ntawd, kev kho qhov siab ntauwd tsis tas yuav tsum muaj rau kev khiav hauj lwm overvoltage.