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Re: [!! SPAM] Re: [PSUBS-MAILIST] silicone dielectric fluid
To add to that - it is a good idea to pressure compensate oil filled
spaces - particularly those containing electronic components - to some
pressure above ambient. This can be accomplished with a soft bladder
somewhere in the connected oil system which is spring loaded to develop
a bit of pressure in the system. This serves to ensure that if a leak
does develop, you have silicone oil leaking out and not seawater leaking
in, and also takes care of the thermal expansion / contraction problem,
at the expense of a slight variation in system pressure.
-Sean
James Barlow wrote:
I used Silicon to pressure balance electronic circuit boards to about
2000 psi. It would work well, but it has a fairly large temperature
expansion coefficient. You will have to account for volume change
with temperature change. This can be very simple but must be thought of.
I can get you the spec sheet for the one we used if you would like.
Thanks,
James Barlow RET
Sr. Mechanical Designer
New Product Development
BJ Pipeline Inspection
www.bjservices.com/inspection
Ph (403) 531-5412
Fax (403) 236-8740
Cell (403) 807-2195
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