Electric arc/plasma resistant gas

[shardbearer]

Im looking for a gas which is resistant to electrical arcing and turning into plasma, preferably being easy to obtain and handle, as well as being as light as possible. (Like helium). Thanks!

EDIT: More research suggests sulfur hexaflouride or (maybe) nitrogen. http://en.wikipedia.org/wiki/Dielectric_gas

 

[ZapperZ]

Im looking for a gas which is resistant to electrical arcing and turning into plasma, preferably being easy to obtain and handle, as well as being as light as possible. (Like helium). Thanks!

Sulfur hexafluoride (SF6) is a gas used in waveguides to reduce arcing. However, I'm not sure if it is "easy" to handle. It is a greenhouse gas. And it is heavier than air, so it isn't "light".

Zz.

 

[256bits]

Argon, helium, carbon dioxide, nitric oxide and others are used in electric arc welding as a shielding gas. Some of those gases may suit your purpose.