Tus qauv purity specifications rau sulfur hexafluoride (SF6) roj tuaj yeem sib txawv nyob ntawm seb daim ntawv thov. Rau ntau
daim ntawv thov, tus qauv purity ntawm SF6 roj tau teev tseg kom tsawg kawg yog 99.995% lossis siab dua. Qhov siab ntawm purity no tseem ceeb heev rau
tswj cov insulating thiab arc-quenching zog ntawm SF6 hauv cov khoom siv hluav taws xob.
Nyob rau hauv kev lag luam hluav taws xob, tshwj xeeb tshaj yog nyob rau hauv high-voltage daim ntaub ntawv xws li gas-insulated switchgear (GIS) thiab Circuit Court breakers,
purity ntawm SF6 yog ua tib zoo tswj los xyuas kom meej kev ua tau zoo. Txawm tias muaj pes tsawg tus ntawm impurities tuaj yeem cuam tshuam rau dielectric
Cov khoom ntawm SF6 thiab nws lub peev xwm los tua arcs.
Cov txheej txheem thoob ntiaj teb, xws li IEC 60376 tus qauv, muab cov lus qhia rau cov lus qhia tshwj xeeb thiab tuav cov roj SF6.
Raws li IEC 60376, cov kev qhia tshwj xeeb rau cov roj SF6 tshiab suav nrog:
Cov ntsiab lus noo noo: Tsawg dua 150 ppmv (ib feem ntawm ib lab los ntawm ntim)
Purity: 99.995% lossis siab dua
Acidity: Tsawg dua 0.1 ppmv ntawm hydrogen fluoride (HF)
Nws yog ib qho tseem ceeb kom nco ntsoov tias cov kev qhia tshwj xeeb no yuav raug hloov pauv hauv cheeb tsam lossis cov kev cai tshwj xeeb raws li cov
cov chaw tsim khoom lossis cov cai hauv zos. Kev saib xyuas tsis tu ncua thiab kev tshuaj xyuas ntawm SF6 roj zoo yog feem ntau ua nyob rau hauv
teb los xyuas kom meej tias cov roj ua tau raws li cov qauv purity yuav tsum tau ua.
Vim muaj kev txhawj xeeb ntawm ib puag ncig cuam tshuam nrog SF6 ua lub tsev cog khoom roj, kev siv zog tab tom tsim los tsim lwm txoj hauv kev thiab
technologies uas muaj kev cuam tshuam ib puag ncig qis. Nyob rau lub sijhawm no, kev tuav nruj, rov ua dua tshiab, thiab rov ua dua tshiab yog
pom zoo kom txo qis emissions thiab txhawb kev siv lub luag haujlwm ntawm SF6 hauv kev siv hluav taws xob.