Chemical Reaction of Sulfur Dioxide at High Humidity and Temperature: Implications for Accelerated Testing

1981 ◽  
Vol 128 (3) ◽  
pp. 679-685 ◽  
Author(s):  
Daniel L. Flamm ◽  
D. D. Bacon ◽  
E. Kinsbron ◽  
Alan T. English
Keyword(s):  
Sulfur Dioxide ◽  
Chemical Reaction ◽  
Accelerated Testing ◽  
High Humidity

scholarly journals Study of the effect of high humidity and sulfur dioxide on effectiveness of protective coatings

2020 ◽  
Author(s):  
I.V. Zarapina ◽  
A.YU. Osetrov ◽  
A.A. Anan'ev ◽  
D.V. Kartashov
Keyword(s):  
Sulfur Dioxide ◽  
Protective Coatings ◽  
High Humidity

Differences of SF6 Byproducts in Simulated Electric Equipment of Overheating Faults in Different Condition

2012 ◽  
Vol 512-515 ◽  
pp. 1121-1124 ◽  
Author(s):  
Yu Wang
Keyword(s):  
Sulfur Dioxide ◽  
Hydrofluoric Acid ◽  
Sulfur Hexafluoride ◽  
High Humidity ◽  
Temperature And Humidity ◽  
Electric Equipment ◽  
Low Humidity ◽  
Safety Operation

The decomposition of sulfur hexafluoride (SF6) in overheated electric equipment at different temperature and humidity was simulated in the study. SF6 is significantly decomposed at 350°C. SF6 is more easily decomposed in high humidity than in low humidity. The concentrations of SF6 byproducts, such as sulfur dioxide (SO2), sulfureted hydrogen (H2S) and hydrofluoric acid (HF), in high humidity are much higher than those in low humidity. Moisture in electric equipment accelerates the decomposition of SF6. In order to insure the safety operation of electric equipment, moisture in the equipment should be strictly controlled. SF6 will be decomposed to format HF. The concentration of HF will decrease when its concentration increases up to a certain concentration. It may be because that HF was strongly corrosive and its corrosion to inner equipment made the concentration of HF decreasing.

Sign in / Sign up

Export Citation Format

Share Document