Self Reduction Characteristics After Overheated Decomposition of C5F10O

C
₅
f
₁₀
O has the potential to replace SF
₆
gas in medium and low voltage gas insulated switchgear because of its excellent insulation performance and low global warming potential. In the case of partial overheating or discharge in the equipment, whether C
₅
f
₁₀
O can recover itself after decomposition is one of the important factors that determine its application prospect. However, there are few researches on the recovery of decomposed C
₅
f
₁₀
O by overheating at home and abroad. In this paper, the recovery experiments of C
₅
f
₁₀
O were carried out on the existing experimental system of partial decomposition of gas insulating medium. The experimental results show that C
₅
f
₁₀
O has a certain self-recover ability after overheating decomposition in the temperature range of 400 °C - 475 °C; the molecular structure of C
₅
f
₁₀
O and its main decomposition products is optimized by the hybrid: B3LYP method in the density functional theory, and the reaction paths of CF
₃
CFCOCF
₃
-, CF
₃
- radicals and C3F6 to produce C
₅
f
₁₀
O are studied, and compared with the main decomposition reactions of C
₅
f
₁₀
O under the same conditions, the self-recover characteristics of C
₅
f
₁₀
O were revealed preliminarily in molecular level, which laid a foundation for the industrial application of C
₅
f
₁₀
O gas.