Re: sf6 dielectric strength

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Dr. Resonance" <resonance-at-jvlnet-dot-com> 



Breakdown of SF6 is linear at pressures between 1 atm and 4 atm:

1 bar    85 kV/cm

4 bar    300 kV/cm

In a gas atmosphere, electrodes must be conditioned by increasing the
potential slowly over a period of 30 minutes and allowing the leakage
current to slowly stabilize (< 2 mA) in each step.  Subsequent temperature
must be less than 100 degrees C to avoid decondtioning.

Source:  Handbook of Accelerator Physics and Engineering     A. Chao & Maury
Tigner

Also see Handbook of Chemistry & Physics courtesy your local library or
interloan library.


Dr. Resonance

Resonance Research Corporation
E11870 Shadylane Rd.
Baraboo   WI   53913
 >
 > Anyone know or have a table listing the dielectric properties of sf6 at
 > various pressures including 1atm? After a google search all I find are
 > people selling it and MSDS sheets.
 >
 >
 >