R134a Electrical Properties

[bwillebrand]

I've been searching the Internet high and low looking for the ELECTRICAL conductivity of R134a. There doesn't seem to be much info on the subject and I'm stuck. Does anybody know its conductivity and/or where I could find it out?

Brian

[jpsmith1cm]

http://www.finalube.com/Product_Data...fluids_pdf.pdf

Is that what you are looking for?

I did a Google search "Dielectric strength of R134a"

There was another, presumably more in-depth, article, but I wasn't willing to pay $31.50 American for it.

[Grizzly]

http://www.finalube.com/Product_Data...fluids_pdf.pdf

Is that what you are looking for?

I did a Google search "Dielectric strength of R134a"

There was another, presumably more in-depth, article, but I wasn't willing to pay $31.50 American for it.

When refering to FLUIDS, Read Oil Brian.
Therefore the chart displayed is refering to oil.
Unless refrigerants have both a floc and pour point.
Grizzly

[bwillebrand]

Its close but no cigar. I'm looking for a conductivity constant (could use the reciprocal of resistivity) The application I'm using it for needs to be in units mS/cm but I can do the conversions to get it there.

Thanks for looking though.

[Brian_UK]

I don't pretend to understand but this paper shows the following at 50°C
R134a Liquid 7.2 kV/mil
Vapour 6.7 kV/mil.

Does this help?

http://www.google.co.uk/url?sa=t&sou...iJ5zAw&cad=rja

[Tayters]

Whatever the conductivity is of the refrigerant, it will also be running about the system with oil which will also have a conductivity.

Do you need to take this into account as well Brian?

PAG oil is too conductive to use in anything other than open drive compressers. Mineral, AB and POE are used in hermetics because (amongst other things) their dielectric strength is high.

Cheers,

Andy.

[bernie1969]

Hi, just want to ask your opinion, I have 1/4Hp 220 volts/60hz R134A Fridge compressor, I just want to ask your opinion If I could use R22 refrigerant in the system?

Thanks,

[jpsmith1cm]

Hi, just want to ask your opinion, I have 1/4Hp 220 volts/60hz R134A Fridge compressor, I just want to ask your opinion If I could use R22 refrigerant in the system?

Thanks,

You could use R-22 in this system.

If you want it to work correctly, I would advise NOT doing so, though.