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Felix
 
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Default adding dimmer switch to old wiring

Thx everyone for all your help.

The green wire on the switch was marked as ground.

I was able to find a ground in a wall socket below so I could test
which of the wall wires was hot (or what I call hot).

I connected the white wire on the switch to the "hot" wire.
I connected the black wire on the switch to the "other" wire.
I connected the green wire to the box, although the box is not
grounded.

It all works, and I believe that although it might not be up to 2003
spec, it can't be much worse than the switch that I replaced.

Sincerely,
Felix


"TimS" wrote in message ...
I agree, Chris.
It's a lot more logical to see a white ("known to be hot from here") in a
take off for a switch than to see whites on both sides of a load.
My code book indicates the conductor must be identified, but nobody does it.
For the dimmer, the X10 black/blue system makes a lot of sense.


"Chris Lewis" wrote in message
...
According to I-zheet M'drurz :
Are you trolling, or are you serious???


There are industry standard color codes for wires. Green is
Ground. White is Neutral. Are you seriously suggesting that
a manufacturer would code a wire that should be black as a
white colored wire?


Neither wire on a switch is neutral. Virtually every switch ever
installed has one white wire on it. You don't even have to mark it
in this particular instance, because the NEC assumes everyone _knows_
that any wire connected to a switch is potentially hot.

On a "switch circuit" circuit to a switch, one of the wires pretty well
has to be white. But they're both hot. If I remember correctly, the

white
wire is supposed to be the one "always hot", and the black one is the
switched wire one going to the center pin on the lightbulb socket.

Ie: in the fixture, the fact that you have one white wire in a wirenut
with one or more other blacks is supposed to be a good hint that that
white wire is hot. Secondly, the other wire (which goes to the light
bulb) is black to indicate that it's hot.

I have seen simple dimmers with white and black wires. Makes it obvious
how to connect switch legs to the switch (even if it doesn't matter),
doesn't it?

Most dimmers I've seen are two black wires.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.