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Electrical wiring question
Posted on 6/2/23 at 10:49 am
Posted on 6/2/23 at 10:49 am
I'm replacing two lights in my front foyer with ceiling fans. Upon removing the first light, I discovered that my ceiling electrical boxes are not grounded (early 70's build before the code was updated).
The current light fixture had a bare copper wire grounding wire going from the lights to the bracket that screwed into the electrical box.
I need to hook up the ground for the fan, is it OK to ground it to the old box similar to how the light fixture was? Also, both the neutral and the hot wire were both white coming out of the box to give you an idea of the age of house wiring. I marked the hot so I don't cross things up.
The current light fixture had a bare copper wire grounding wire going from the lights to the bracket that screwed into the electrical box.
I need to hook up the ground for the fan, is it OK to ground it to the old box similar to how the light fixture was? Also, both the neutral and the hot wire were both white coming out of the box to give you an idea of the age of house wiring. I marked the hot so I don't cross things up.
Posted on 6/2/23 at 10:55 am to BayouBengal51
quote:
is it OK to ground it to the old box similar to how the light fixture was?
You can hook the ground wire to it if you want, but that doesn’t do anything since you stated the box wasn’t grounded.
Also, more than likely you will need to remove that electrical box and replace it with one that’s designed for ceiling fans (connected to ceiling joists). The once you currently have more than likely cannot handle the weight of a fan.
Posted on 6/2/23 at 10:58 am to MikeBRLA
quote:
The once you currently have more than likely cannot handle the weight of a fan.
It can't, so I'm picking up a couple of new boxes today for that very purpose.
Thank you for the quick response, just wanted to make sure I don't burn my house down.

Posted on 6/2/23 at 11:16 am to BayouBengal51
quote:
both the neutral and the hot wire were both white coming out of the box to give you an idea of the age of house wiring. I marked the hot so I don't cross things up.
We had this in one of our sconces, except the neutral and hot wires were both labeled opposite of their colors.
But yes as mentioned, you'll need the box grounded before you wire it up.
Posted on 6/2/23 at 11:30 am to BayouBengal51
you can stick the ground where ever you want since no ground wire or grounded box to connect back to panel. That's what I would do.
I think if you were a licensed electrician thats concerned with liability, you may be compelled to run a new cable with ground to the boxes. $$. Though that may a requirement just be for receptacles.
I think if you were a licensed electrician thats concerned with liability, you may be compelled to run a new cable with ground to the boxes. $$. Though that may a requirement just be for receptacles.
Posted on 6/2/23 at 12:25 pm to BayouBengal51
quote:
I need to hook up the ground for the fan, is it OK to ground it to the old box similar to how the light fixture was? Also, both the neutral and the hot wire were both white coming out of the box to give you an idea of the age of house wiring. I marked the hot so I don't cross things up.
As others have mentioned, you can land the ground wire from the fan on the old electrical box but it won't be properly grounded since the box isn't grounded.
The ground wire gives a safe path for electricity to travel in an event of a fault. So you're essentially just trying to get the ground from the fan back to your panel. As another poster said, it may require running a new wire to get that ground if you don't currently have one.
Do NOT tap the ground wire into the neutral. The neutral is considered a "current-carrying conductor" whereas the ground is not. The ground will only have electricity running through it in the event of a fault.
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