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Discussion Starter · #1 ·
So I'm redoing the 2nd bathroom in my house and have come to realize it only has ONE source of power in the entire bathroom...one plug in that's above the sink and is controlled by a light switch just outside the bathroom. It looks like maybe it used to be a light fixture but changed to a plug in to have a source of plug in power. The old light fixture was a plug in bar style light.
I'd like to have a typical vanity light though and not a plug in style light (probably can't even find one now a days anyhow).

So what I'm hoping to do is leave it as a plug in outlet, and simply tapping into the hard wiring for the outlet for the light fixture. Is this doable and safe?
I'd probably put the light fixture just above the outlet, make a small hole in the plaster and run the wires behind the wall down to the outlet.

Also as you can tell, I've never done this really, but I suppose I'd have to cut out a square in the plaster and install a light fixture mounting box? Right above the outlet should work since that's where the wall stud would be I guess?
Anyways any tips or links to some videos would be great. :)

Otherwise I suppose I could pay an arm and a leg to have an electrician come out and wire some new outlets so I can just convert teh only plug in to a light fixture. I hate remodeling old houses. lol
 

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Discussion Starter · #2 ·
Ok I hope I have an answer to my question. lol After thinking about it I remember outlets have a set of 4 screws....one for the incoming power and then one for outgoing to another outlet.

So question is I can just buy some new copper wiring and send that out of the 2nd set of screws on the outlet and wire those up to a newly installed light box and be good?

Would the light still function off the outside light switch though? hmmm My goal is to get this done and not tear a bunch of plaster down for a huge wiring project.
 

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By current standards, no it would not be correct. You need at least a 20 amp circuit for courtesy outlets for stuff like hair dryers, curling irons, plug in shavers, etc., and a 15 amp that can be shared off of the bedroom, linen closet lighting, hall lighting, to serve the lights in the bath.
 

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Discussion Starter · #4 ·
By current standards, no it would not be correct. You need at least a 20 amp circuit for courtesy outlets for stuff like hair dryers, curling irons, plug in shavers, etc., and a 15 amp that can be shared off of the bedroom, linen closet lighting, hall lighting, to serve the lights in the bath.
So it wouldn't be up to code is what you're saying? There is just one circuit for the bathroom and it's a 15 amp (I believe, but It'd have to double check, could be 20). The bathroom would ONLY have the lighting fixture and one single socket outlet. That wouldn't even come close to putting out 1800 watts to overload the circuit.
 

· flipping slumlord
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There is just one circuit (being shared by) the bathroom and it's a 15 amp
(for the lights only)

The bathroom would ONLY have the lighting fixture and one single socket outlet. That wouldn't even come close to putting out 1800 watts to overload the circuit.
Doesn't matter.

The lighting circuit can be left alone (or maybe add a fan to it).
Your job is to provide a 20A GFI protected outlet circuit.
 

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Discussion Starter · #6 ·
So a 20 amp GFI circuit is code and that's why you say "Your job is to provide a 20A GFI protected outlet circuit."?

So what you're saying means I need to wire an entire new circuit up to the bathroom? For one single outlet? That seems pretty rediculous. lol But if that's code...

Also my house still has a fuse box and not circuit breakers. So could I either just buy a GFCI outlet or do I have to add a box with a circuit breaker and run the new circuit off that? At this point I might as well just rewire the dang house! To add a lighting fixture in my bathroom....:huh:
 

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Sorry you don't like the answers you're getting, but they are correct. Code is what it is, primarily for safety reasons. I am not a pro, so don't know what is legal as far as adding a circuit to an existing fuse box (assuming you have room to do so). I've never even seen a fuse box since the one in my parents' house 50 years ago.
 

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Discussion Starter · #9 ·
Sorry you don't like the answers you're getting, but they are correct. Code is what it is, primarily for safety reasons. I am not a pro, so don't know what is legal as far as adding a circuit to an existing fuse box (assuming you have room to do so). I've never even seen a fuse box since the one in my parents' house 50 years ago.
It's not that I don't like the answers...they're just very vague! Lol.
 

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It's not that I don't like the answers...they're just very vague! Lol.

Get an additional breaker, run the wires from the breaker box. The whole bathroom can be on the same breaker, however, you have to have an access point.

Follow NEC guidelines in making said access point, and run wires to the outlet from said point, and to the light fixtures and switches from said point.

What they are saying, is for you to do what you want to do, you're going to have to rewire your bathroom.
 

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So you have an existing 15a recepticule,
which you assume was a light circuit in the past.

Can you add a light to this circuit ?
Yes ! but it depends on how the existing circuit is wired !
Cause you will need to get access to neutral and hot !

If the power goes first to the recepticule and then uses
a switch loop, then you will be good.

But if it is the other way around, like the power goes
first to the switch, and then to recepticule,
then you will have to run extra wires,
from the switch to get access to the neutral and
hot line.

As for the 20a power circuit, Check code in your area,
most area's require 20a power circuits for bathrooms,
because the chances are, some one, some day, will try
to plug in a heavy draw appliance, like a hair dryer.
And due to wet enviroment gfci's are usually required.

If this is the case, then it would be easier for you
to use existing circuit for lights, and run a new 20a
gfci circuit for recepticule.

I know its a pain brother !
But them there's the rules !
 

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Discussion Starter · #13 ·
So you have an existing 15a recepticule,
which you assume was a light circuit in the past.

Can you add a light to this circuit ?
Yes ! but it depends on how the existing circuit is wired !
Cause you will need to get access to neutral and hot !

If the power goes first to the recepticule and then uses
a switch loop, then you will be good.

But if it is the other way around, like the power goes
first to the switch, and then to recepticule,
then you will have to run extra wires,
from the switch to get access to the neutral and
hot line.

As for the 20a power circuit, Check code in your area,
most area's require 20a power circuits for bathrooms,
because the chances are, some one, some day, will try
to plug in a heavy draw appliance, like a hair dryer.
And due to wet enviroment gfci's are usually required.

If this is the case, then it would be easier for you
to use existing circuit for lights, and run a new 20a
gfci circuit for recepticule.

I know its a pain brother !
But them there's the rules !
Just the information I was looking for thanks!! Well I'll hope the power goes to the box then uses a loop for the switch. I'll post back once I pull it out.
If I can get away with this for now that'd be fine. Eventually I plan on replacing the fuse box with a circuit breaker box and then I'll get it properly done and up to code. Going to go check electrical code here right now.
 

· flipping slumlord
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Well I'll hope the power goes to the box then uses a loop for the switch.
All old houses are wired that way.

What this means though is that the existing 15Amp (or even 20A) circuit feeding the bathroom light is ALSO feeding every other light on that floor and maybe the house as a whole... but it is not suitable for adding any heavy loads to.

Can you plug in an electric shaver there? Sure.
Can you add an exhaust fan to the room? Probably.
Can you plug in an 1800 Watt blow dryer?
No one answering here would do it in their own house.

Going to go check electrical code here right now.
The code specifics don't really matter.
This is more about common sense.

The lighting circuit can be left alone (or maybe add the fan to it).
Your job is to provide a GFI protected outlet to the bathroom.

Most commonly, ideally, modernly or however else you may want to qualify the need... it is accomplished by way of a dedicated 20A circuit. If you have more than one bathroom they can share it.

hth
 

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Discussion Starter · #15 ·
All old houses are wired that way.

What this means though is that the existing 15Amp (or even 20A) circuit feeding the bathroom light is ALSO feeding every other light on that floor and maybe the house as a whole... but it is not suitable for adding any heavy loads to.

Can you plug in an electric shaver there? Sure.
Can you add an exhaust fan to the room? Probably.
Can you plug in an 1800 Watt blow dryer?
No one answering here would do it in their own house.

The code specifics don't really matter.
This is more about common sense.

The lighting circuit can be left alone (or maybe add the fan to it).
Your job is to provide a GFI protected outlet to the bathroom.

Most commonly, ideally, modernly or however else you may want to qualify the need... it is accomplished by way of a dedicated 20A circuit. If you have more than one bathroom they can share it.

hth
Ok so got a chance to pull the fuse and inspect. Indeed it is a 15 amp circuit that is running 5 lights (dining room, kitchen, upstairs hallway, both bedrooms, and the bathroom (currently an outlet).
So obviously the bathroom will need it's own 20 amp circuit for outlets at some point.
For now I plan then to add a GFCI outlet in this bathroom and run power from that to a new light fixture. This bathroom is never really used anyhow, and has never had a blow dryer etc used up there (my wife uses our main bathroom downstairs).
Anyways I think I should be fine for now with this setup? I do plan on just getting a circuit breaker box and at that time I'll address any wiring issues.
I have one question though on what the switch will control exactly.
Will it shut off both the outlet AND the light that it's powering? I assume so? Kind of weird having the outlet only work if the light is on...but not the end of the world.
 

· sparky
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If you were redoing the bathroom anyway, I think it would have cost less than you think for an electrician to pop in and just do it right for you. They see things that you may not, from what I'm reading, there is only a few hours at the most for what is taking a week of delayed finishing...?

If you can power the outlet with the direct hot from the switch box, great, if not then it'll be switched with the light til you decide to do it right.
 

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Discussion Starter · #17 ·
Ok so tested it today and the light works when wired from the new GFCI outlet! :thumbsup:

A couple of questions regarding the ground though. I only have a hot and neutral coming into the outlet. The new copper wire has hot, neutral, and ground wires. The outlet has a ground screw and the light fixture has a ground screw.

I wired it the first time and didn't ground anything anywhere. When I turned the circuit on the outlet tripped. I reset it and the light came on and everything seemed fine.

So my question is...should I ground the new wire going from the outlet to the light fixture to the GFCI outlet ground screw and then ground the light fixture? Obviously a wiring newbie.
Thanks for all your help!
 
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