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Sulfur hexafluoride was the tracer gas used in the first roadway air dispersion model calibration; this research program was sponsored by the U.S. Environmental Protection Agency and conducted in Sunnyvale, California on U.S. Highway 101. [28] Gaseous SF
Sulfur hexafluoride is generally used in present high-voltage circuit breakers at rated voltage higher than 52 kV. Into the 1980s, the pressure necessary to blast the arc was generated mostly by gas heating using arc energy. It is now possible to use low-energy spring-loaded mechanisms to drive high-voltage circuit breakers up to 800 kV.
A dielectric gas, or insulating gas, is a dielectric material in gaseous state. Its main purpose is to prevent or rapidly quench electric discharges . Dielectric gases are used as electrical insulators in high voltage applications, e.g. transformers , circuit breakers (namely sulfur hexafluoride circuit breakers ), switchgear (namely high ...
The U.S. Environmental Protection Agency has signed off on two major California clean air rules designed to reduce pollution from cars and trucks, including a ban on selling new gasoline-powered ...
California is ringing in 2024 with a gallon of regular gas priced almost 30 cents higher than it was this time last year. From California’s statewide average of $5.89 per gallon in September ...
The Biden administration on Wednesday approved California’s trailblazing rules that would set stricter-than-federal emissions standards, in a bid to ban gas car sales by 2035. In doing so, the ...
The F-gas Regulation adopts an approach based on containment and recovery of F-gases as well as imposing obligations on reporting, training and labeling on those using F-gases. On 26 September 2011, the Commission issued a report on the application, effects and adequacy of the Regulation, drawing from the results of an analytical study it ...
California drivers may soon see a surge in gas prices after state regulators approved tougher policies for reaching the Golden State's climate initiatives.