Good point John, although I would not think it would be necessary for an
aircraft installation.
Brian
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of
TELEDYNMCS@aol.com
Sent: 07 February 2006 14:24
Subject: Europa-List: Conductive grease
In a message dated 2/4/2006 3:01:09 AM Eastern Standard Time,
europa-list-digest@matronics.com writes:
Hi Brian
> A smear of grease might be Ok after you have connected the earth terminals
> but not before. You want the best possible electrical contact and this
> requires a chemically clean joint- grease on the contact face is not good
>
> This would be true for normal grease, but there are products available
that
> are conductive, usually refered to in the telecommunications world as
> "conductive grease". You will find them at any electrical supply house.
One in
> particular we use on copper to copper connections is called "Penetrox".
Penetrox
> is basically copper powder that is mixed in grease. There are also similar
> products sold under the name "Copper Coat" and "CopperOx". These
preparations
> enhance the conductivity of the connection between a lug and buss bar or
> between the lug and the cable if applied before crimping them. They also
prevent
> oxidation of the connection later on. They are commonly used on electrical
> connections that are exposed to weather, such as lightning protection
systems and
> outdoor lighting fixtures. There are also products available specificly
> formulated for aluminum to copper or aluminum to aluminum connections.
>
> Anyway, hope it helps!
>
> Regards,
>
> John Lawton
> Dunlap, TN
> A-245 (Engine installation complete, airfame complete, painted surfaces
> being finish buffed today while I await FAA registration. Watch this space
for a
> big announcement coming in a few weeks!)
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