I believe only AC current exhibits the skin effect
(traveling on the outside of the conductor). The
higher the frequency the greater the effect.
--- wizardz <wizardz@maxinter.net> wrote:
> An an electronics engineer with over 25 years in the
> field
> developing military field gear... believe me...
> that's what's used.
> when metal touches metal (spring loaded inside the
> switch)
> you get electrical contact. Period!
> The dielectric grease eliminates arching and
> sparking as
> the switch makes contact and keeps the 'elements'
> from
> deteriorating the contact surfaces.
>
> when you rub it around your spark plug boots... yes
> it's an insulator.
> You are trying to eliminate possible conduction
> pathes for electricity to
> follow. You're attempting to keep water and crud
> from creating a
> possible path for cvurrent to flow.
> Remember... electricity does not flow 'through the
> center' of a wire.
> It flows on the surface of the wire. Hence
> multi-strand wire of a small guage
> can carry higher amperage, (due to lower resistance
> -more surface area to conduct)
> than a single solid wire of comperable guage.
>
>
>
> Paul Tegler
> OBie - 1973 BGT - Daily Driver
> http://www.teglerizer.com/mgstuff/ob_description.htm
> Rat - 1980 Spitfire - fledgling recently left the
> nest
> http://www.teglerizer.com/triumphstuff/spit80.htm
> Punkin' - 1978 Spitfire - in Superb Shape!
> http://www.teglerizer.com/triumphstuff/spit78.htm
> Lil Greenee - 1973 Rnd Wheel Arch MG Midget in resto
> mode
> http://www.teglerizer.com/midgetstuff/index.html
> email: wizardz@toad.net
> http://www.teglerizer.com
>
>
> -----Original Message-----
> From: Chris Kotting <ckotting@iwaynet.net>
> To: spridgets@autox.team.net
> <spridgets@autox.team.net>
> Date: Thursday, November 18, 1999 1:21 PM
> Subject: Re: Heater switch?
>
>
> Excuse me, but why would you carefully clean a set
> of contacts, then put
> an >>insulator<< on them?
>
> Dielectric grease is NON-conductive.
>
> wizardz wrote:
> >
> > Don't sand or scrape clean metal electrical
> contacts.
> > Any small scratches just reduces the surface
> contact area leading to
> > more arching and less chance of getting a good low
> resisitance connection.
> > (let alone the future tarnish being buried down in
> the scratches where you can't get to it.
> >
> > Use a pencil eraser as the abrasive to clean all
> electrical contacts.
> > It's the equivalent of 3000 grit sandpaper and
> will leave a very bright shine on the metal
> > and makes it very easy to get down in the switch
> to clean them.
> > Just remember to clean out all the eraser shavings
> that rub off and
> > re-apply a nice coating of dielectric grease to
> keep them from tarnishing.
> > (the old dried out gunk in the switch when you
> took it apart is the old dried out
> > dielectric grease used when the switch was first
> assembled at the fatory)
> >
> > Paul Tegler
> > OBie - 1973 BGT - Daily Driver
> http://www.teglerizer.com/mgstuff/ob_description.htm
> > Rat - 1980 Spitfire - fledgling recently left the
> nest
> http://www.teglerizer.com/triumphstuff/spit80.htm
> > Punkin' - 1978 Spitfire - in Superb Shape!
> http://www.teglerizer.com/triumphstuff/spit78.htm
> > Lil Greenee - 1973 Rnd Wheel Arch MG Midget in
> resto mode
> http://www.teglerizer.com/midgetstuff/index.html
> > email: wizardz@toad.net
> http://www.teglerizer.com
> >
> > -----Original Message-----
> > From: Gerard Chateauvieux
> <pixelsmith@gerardsgarage.com>
> > To: Amy <casoich@sgi.net>;
> spridgets@autox.team.net <spridgets@autox.team.net>
> > Date: Thursday, November 18, 1999 1:40 AM
> > Subject: Re: Heater switch?
> >
> > Amy,
> >
> > These switches are pretty easy to open, you
> probably just need to clean the
> > contacts. There is a a small ball bearing and
> spring inside, so just make
> > sure you don't lose them when you pop it open. A
> point file or some fine
> > sandpaper will clean them up pretty quickly.
> Sometimes a little
> > vinegar/salt solution applied with a small brush
> will remove any corrosion
> > also.
> >
> > Gerard
> >
> > At 3:00 PM -0500 11/17/99, Amy wrote:
> > >Hi gang,
> > >
> > > I was wondering if anyone out there had an extra
> heater switch? When
> > >Les looked my car over, we noticed the heater
> wouldn't work. He bypassed
> > >the switch and tested the blower and it would
> spin then. Anyway, if
> > >anyone has an extra, please email me.
> > >
> > >thanks,
> > >
> > >Amy
> > >67 Sprite MkIV
> >
> > Artificial Intelligence is no match for Natural
> Stupidity.
> >
> > G G Gerard Chateauvieux
> > E A
> > R R pixelsmith@gerardsgarage.com
> > A A
> > R G Pixelsmith on Duty
> > D E
> > S http://www.gerardsgarage.com
>
>
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