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Old 05-15-2010, 01:38 AM   #1
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Ground tripped florescent

I installed a four-lamp florescent light from an outlet controlled by a wall switch using wiremold. I used 14 ga solid wires, black, white & green. Got every thing installed, flipped the switch and tripped the breaker. Making a long story short, I removed the green ground from the wall outlet green screw and bingo every thing worked fined. Why would the ground make the breaker trip? The outlet was grounded, all I did was run a ground wire (green) to the florescent groung screw. Help!

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Old 05-15-2010, 08:02 AM   #2
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Ground tripped florescent

The fixture could have been defective. Or you pinched a wire in the Wiremold channel. Been there done that.

Turn the power off and use a multimeter (or ohmmeter). Disconnect both black and white leads down at the switch. There should not be continuity between the frame of the fixture and either the now loose white or black lead.

When the ground wires are properly connected, shorting hot to either neutral or ground should trip the breaker.

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Last edited by AllanJ; 05-15-2010 at 08:11 AM.
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Old 05-15-2010, 09:26 AM   #3
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Ground tripped florescent

You have a short somewhere in your wiremold or fixture.

If you remove the wiring you installed there is probably a nice little arc mark.

If you have removed the ground, the metal parts of your fixture are now energized
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