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Old 09-12-2010, 09:28 AM   #1
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It was so simple! What could be wrong?


I installed two T8 double-tubed 4' long fluorescent lights in my outbuilding yesterday. The suspended lights seemed simple enough...connect the white wires to white, black to black and ground to ground to the ground screws. Then run the 14/2 down to a single switch and the switch to a brand new circuit in a brand new sub-panel. Throw the breaker at the panel and the lights came on. Flip the switch, however, and the circuit breaker trips. It's a 20A CB and there are only two fluorescent fixtures on it. Scratching my head here. The switch only had two screws, both brass, and I tried the incoming wires in both configurations possible. Any ideas on possible beginner mistakes I may have made??
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Old 09-12-2010, 10:25 AM   #2
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It was so simple! What could be wrong?


Neutral would be unswitched...direct to light
Only the hot should be connected to the switch
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Old 09-12-2010, 10:44 AM   #3
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It was so simple! What could be wrong?


Oh damn. It was so simple, wasn't it? Makes perfect sense. Black in, black out, both screws brass and a switch breaks and makes a connection. Thanks for setting me straight and not laughing. Works great now.
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Old 09-12-2010, 07:06 PM   #4
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It was so simple! What could be wrong?


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Originally Posted by tpagel View Post
I installed two T8 double-tubed 4' long fluorescent lights in my outbuilding yesterday. The suspended lights seemed simple enough...connect the white wires to white, black to black and ground to ground to the ground screws. Then run the 14/2 down to a single switch and the switch to a brand new circuit in a brand new sub-panel. Throw the breaker at the panel and the lights came on. Flip the switch, however, and the circuit breaker trips. It's a 20A CB and there are only two fluorescent fixtures on it. Scratching my head here. The switch only had two screws, both brass, and I tried the incoming wires in both configurations possible. Any ideas on possible beginner mistakes I may have made??
You should have a 15 amp breaker with the 14/2 or you should change the wire to 12/2 for the 20 amp breaker.
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Old 09-12-2010, 10:12 PM   #5
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It was so simple! What could be wrong?


Thanks. I was going to change out the CB to 15 amp. The 20's just came with the new panel and let me test the wiring. I appreciate the advise though.
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