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Running Electrical wire questions
Posted on 4/23/16 at 7:41 am
Posted on 4/23/16 at 7:41 am
I'm by far no electrician. I need to run wire 120ft, 50 amp, 110v. What size wire to do I need to use? Thanks for help
7
Posted on 4/23/16 at 7:46 am to ItFliesItDies
6
Posted on 4/23/16 at 7:49 am to ItFliesItDies
16 gauged
Posted on 4/23/16 at 7:50 am to ItFliesItDies
indoor/outdoor? In the attic?
Posted on 4/23/16 at 7:52 am to ItFliesItDies
Based on your question, not knowing the ratings of your terminations # 6 awg THHN copper. If the terminations are rated 75C or higher #8 awg cu should be sufficient.
However I am more curious what you need a 50 amp, 120 volt circuit for ? Something does not sound right. And good luck finding a 50 amp, 1 pole breaker.
However I am more curious what you need a 50 amp, 120 volt circuit for ? Something does not sound right. And good luck finding a 50 amp, 1 pole breaker.
Posted on 4/23/16 at 7:55 am to Kajungee
That's the question I wanted to ask as well
Posted on 4/23/16 at 7:56 am to Kajungee
quote:
However I am more curious what you need a 50 amp, 120 volt circuit for ? Something does not sound right. And good luck finding a 50 amp, 1 pole breaker.
My first thought as well. KGee, I am sure you know the tech. side of things more completely than I do but I thought that to be a LOT of amps for 120v.
Posted on 4/23/16 at 8:07 am to ItFliesItDies
I've been an electrician for 20 years and have never run a 110v 50 amp circuit.
Posted on 4/23/16 at 8:10 am to Kajungee
quote:
However I am more curious what you need a 50 amp, 120 volt circuit for ? Something does not sound right. And good luck finding a 50 amp, 1 pole breaker.
I've seen someone redneck up a 120v only sub panel with xx/2 instead of xx/3. Black to one leg, white to neutral, bare to ground, and a pig tail from one leg of the sub to the other leg. Used only single pole breakers.
I saw a lot of interesting rednecked up shite working summers with my dad as an electrician.
This post was edited on 4/23/16 at 8:11 am
Posted on 4/23/16 at 8:26 am to Kajungee
Then I'm assuming wrong, must be double breaker and 220v
Posted on 4/23/16 at 8:28 am to ItFliesItDies
220, 221, whatever it takes.
Posted on 4/23/16 at 8:30 am to Kajungee
quote:
Based on your question, not knowing the ratings of your terminations # 6 awg THHN copper. If the terminations are rated 75C or higher #8 awg cu should be sufficient.
#8 would be fine in that instance per NEC, but it depends on the length of the run. If voltage drop is an issue then #6 is needed
quote:
Then I'm assuming wrong, must be double breaker and 220v
50/2 breaker and sizing as mentioned by others for conductor, either a 3/4" conduit or 1", I forget what the NEC says. Probably need a #10 ground wire as well.
This post was edited on 4/23/16 at 8:33 am
Posted on 4/23/16 at 8:32 am to djangochained
quote:
16 gauged
I worked in a DIY type store (Handy City/Handy Dan if anybody recalls that store) back in my college days. Had a couple of guys come in wanting to by 18 gauge lamp cord for an 4500 watt industrial heater. I wouldn't sell it to them, but they lingered around and cut it themselves when I was with another customer. Not sure if they burned their shop down or not. I kinda knew the guys, they had worked for my stepdad when he had a small hot shot business.
Posted on 4/23/16 at 8:52 am to DrSteveBrule
quote:
If voltage drop is an issue then #6 is needed
At 120 ft full load .8 PF you're looking at 8 V vs 5 V drop fro 8 to 6. 8 is probably sufficient. If the price difference is small enough, go with 6.
quote:
Probably need a #10 ground wire as well
Probably right, typically one size smaller but no need to worry about that if he goes with one of these:
8/3 NM-B W/G
6/3 NM-B W/G
Posted on 4/23/16 at 8:53 am to DeoreDX
RVs use 120v 50amp service
Posted on 4/23/16 at 9:05 am to ItFliesItDies
You would probably get better advice if you told everyone what you are wiring. The fact that you are not sure if its a single or double pole breaker you need means your in over your head.
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