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RE: Is a relay needed in a fog light installation

To: "'Barrie Robinson'" <>,
Subject: RE: Is a relay needed in a fog light installation
From: "Lew Palmer" <>
Date: Mon, 30 Dec 2002 12:34:33 -0600
Guys (and Gals),

A relay obviates the need for a heavy duty switch. On that we can agree,
But for us that have cars that are between 22 and 72 years old, where
will you find a proper looking switch that will handle the current
needed for things like fog lamps, horns, etc. A relay provides the ideal
answer. Now maybe if you have a late model car and don't care about
originality, you can use a hefty switch from the hardware store. But,
personally, I'd prefer not having to use a wall switch on my J2. <g>

Lew Palmer

-----Original Message-----
From: [] On
Behalf Of Barrie Robinson
Sent: Monday, December 30, 2002 12:44 PM
To: Telewest (PH); Bullwinkle; mgs
Subject: Re: Is a relay needed in a fog light installation


It would seem that the only advantage of using relays would be the
of heavy duty switches and a few feet of heavy duty wire.  Perhaps then
would be economically sound to use heavy duty switches and wire instead
relays and its wiring.  After all we are only talking about saving heavy

duty wire between relays and dash - in my case just a couple feet.  The 
arcing would be done in the switch instead of the relay but this is just

the same as arcing in the relay.  The fire risk would be no more than 
normal provided the usual electrical wiring standards are used.  (This 
would not apply to the heavy draw of the starter where we get into
amps).  The whole subject is confusing as obviously the car
would use the most economic (not necessarily the safest) way of wiring
up a 
vehicle.  This tends to suggest that relays have a great advantage but
the life of me I cannot see what it is - except for the starter of

At 09:25 AM 12/30/2002 +0000, Telewest \(PH\) wrote:
>It certainly has, that is exactly what a relay will do!  You use the
>original circuitry to power the relay, which only takes milli-amps, via
>auxiliary light switch and connect one side of the relay contact back
to a
>heavy gauge brown like at the fusebox or even the solenoid, via a fuse,
>other side to the lamps, of course.
>----- Original Message -----
>From: "Barrie Robinson" <>
>To: "Bullwinkle" <>; "mgs" <>
>Sent: Sunday, December 29, 2002 7:44 PM
>Subject: Re: Is a relay needed in a fog light installation
> > Christmas cheer has dulled my senses - but surely a relay will not
> > compensate for wiring intended for only one lamp


Barrie Robinson -

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