Hauv kev lag luam hluav taws xob, SF6 yog qhov nruab nrab tseem ceeb, uas yog siv los ua hluav taws tua hluav taws thiab cov roj me me rau qhov kaw, qhov hloov hluav taws xob siab. Kev ua tau zoo tshaj ntawm cov pa roj carbon hexafluoride paub txog kev lag luam thiab kev saib xyuas qis ntawm lub cuab yeej. Tam sim no, raws li qhov ntug thiab qhov nruab nrab tua hluav taws, tsis muaj lwm yam thev naus laus zis uas tuaj yeem hla SF6 roj los ntawm cov txheej txheem kev lag luam, nyiaj txiag thiab kev nyab xeeb.
Sulfur hexafluoride gas tau siv dav hauv cov khoom siv hluav taws xob. Los ntawm daim ntawv thov pom, SF6 cov hluav taws xob hluav taws xob thiab GIS yog cov tseem ceeb, uas tau hloov pauv cov roj hluav taws xob hluav taws xob nrog hluav taws xob ntawm 126kV thiab siab dua. Pom tseeb, nws yog qhov hloov pauv tsis tau ntawm kev txhim kho uas SF6 roj hloov pauv cov roj ntug raws li cov hluav taws tua hluav taws thiab ntug nruab nrab.
Los ntawm cov tshuaj lom neeg pom, SF6 roj tsis yog tshuaj lom, tab sis thaum SF6 roj tau siv hauv cov khoom siv hluav taws xob, nws tsim cov tshuaj lom vim nws cuam tshuam nrog cov khoom kub. Cov khoom siv hlau thiab cov tshuab hluav taws xob hauv cov khoom siv hluav taws xob yuav cuam tshuam nrog SF6 roj thiab nws cov khoom sib xyaw ua ke kom tsim cov tshuaj lom. Nyob rau tib lub sijhawm, SF6 cov khoom siv roj ua kom tawg kuj tseem yuav cuam tshuam nrog cov dej noo hauv cov cuab yeej siv hluav taws xob, thiab tseem yuav tsim cov tshuaj lom. Ib qho ntxiv, SF6 cov khoom siv roj tsis muaj qee yam ntawm kev ua kom huv. Piv txwv li, SF6 roj muaj hydrogen fluoride, sulfur fluoride tsawg thiab lwm cov pa phem heev thaum nws tawm ntawm lub hoobkas. Nyob rau tib lub sijhawm, nws tuaj yeem pom tias lub hauv paus tseem ceeb ntawm kev muaj tshuaj lom yog los ntawm cov pa tsis huv SF6 thiab cov pa tawm thaum lub tshuaj lom tshuaj lom. Thaum siv SF6 roj hauv cov cuab yeej siv hluav taws xob, cov pa roj nkag mus rau hauv huab cua yuav yooj yim ua rau tib neeg muaj kab mob thiab ib puag ncig, yog li peb yuav tsum xyuam xim tiv thaiv SF6 roj.
Ua phem rau ib puag ncig. Txawm hais tias SF6 tsis ua rau muaj kev phom sij ntau rau txheej txheej ozone thiab huab cua hauv huab cua, nws yog vim muaj tshuaj lom neeg ntawm SF6 roj. Ib zaug xau mus rau saum huab cua, nws yuav nyob ntev mus, uas yuav yooj yim ua rau muaj teeb meem tsev cog khoom cuam tshuam thiab ua rau lub ntiaj teb sov tuaj. Raws li lub zej zog them nyiaj ntau dua thiab ntau dua rau qhov teeb meem ntawm kev tiv thaiv ib puag ncig ntsuab, txhawm rau txhawm rau txhim kho kev lag luam ntsuab, ntau lub tebchaws tau teeb tsa kev tswj hwm kev nyab xeeb ntawm SF6 roj hauv kev tsim khoom lag luam thiab cov cuab yeej siv hluav taws xob, thiaj li txo qhov tshwm sim ntawm SF6 roj to. Qib ntawm kev ua qias tuaj rau huab cua thiab ib puag ncig raug txo qis.
Kev phom sij rau tib neeg lub cev. Ib qho yog tias SF6 roj yuav nqa qee yam lwm cov pa phem lossis qee yam tshuaj lom tsis zoo uas nkag mus thaum cov txheej txheem kev nce nqi thaum tawm hauv lub hoobkas. Cov pa roj carbon no ua rau muaj kev phom sij rau tib neeg lub cev thiab cuam tshuam rau kev nyab xeeb ntawm tus kheej ntawm cov neeg ua haujlwm cuam tshuam. [3] Qhov thib ob yog thaum SF6 cov roj siv hauv cov khoom siv hluav taws xob, nws tso tawm cov tshuaj lom vim yog kev sib xyaw tshuaj ntawm cov pa nrog dej, cov khoom siv hlau, thiab cov khoom tiv thaiv hauv ib puag ncig kub. Ib feem ntawm cov cuab yeej siv hluav taws xob tau nyob hauv lub xeev kaw, yog li cov pa lom tsis tuaj yeem tso tawm tau raws sijhawm vim muaj kev txwv ib puag ncig. Thaum cov neeg ua haujlwm kho mob tau pom cov pa lom no thaum lub sijhawm saib xyuas, lawv txoj kev noj qab haus huv yuav raug hem.
Ntxiv mus, thaum SF6 roj muaj cov dej noo, nws yuav ua rau muaj kev phom sij hauv qab no rau cov khoom siv hluav taws xob:
(1) Thaum muaj cov dej noo, SF6 cov khoom lag luam decomposition tau txais cov tshuaj tiv thaiv hydrolysis, uas cuam tshuam qhov rov ua dua tshiab ntawm SF6 cov khoom lag luam decomposition, txo kev rov ua kom muaj zog ntawm SF6 xov xwm, thiab yog li txo qhov ua tau ntawm cov cuab yeej siv tau;
(2) Ua kom muaj dej ntau ntxiv ntawm cov tshuaj fluoride qis thiab cov hlau fluoride decomposition. Kev tsim cov tshuaj fluorinated sulfurous acid thiab hydrofluoric acid yog tshuaj lom, muaj kev phom sij loj rau tib neeg lub cev, thiab tseem ua rau hluav taws xob thiab cov khoom cuam tshuam nrog;
(3) Cov pa roj carbon dioxide hexafluoride hws hauv cov khoom siv. Vim tias cov dej noo nyob hauv cov pa muaj nyob rau hauv daim ntawv ntawm cov dej ua pa, thaum qhov ntsuas kub poob qis, nws tuaj yeem ua rau sab hauv cov khoom siv thiab ua raws li cov khoom siv xws li hluav taws xob thiab ntug ntug. Nws yog ib qho yooj yim los tsim cov dej ntws tawm (flashover) thiab ua rau muaj xwm txheej.