Pedestal install

[Dallasrules]

I have an electrical question. I need to put a pedistal in for a 30amp trailer. I have a roll of wire that is 500 Ft. Roll GRAY STRANDED #10 THHN THWN-2 . It is about 125 feet from the house. I plan to run it above ground through pvc conduit for now, but eventually body it. Will I get too much current degradation with this wire? I am not worried about it passing code.

[harley]

Dont fool around with electricity, call an electrician and be sure it is to code.,

[Russb]

Originally Posted by Dallasrules

I have an electrical question. I need to put a pedistal in for a 30amp trailer. I have a roll of wire that is 500 Ft. Roll GRAY STRANDED #10 THHN THWN-2 . It is about 125 feet from the house. I plan to run it above ground through pvc conduit for now, but eventually body it. Will I get too much current degradation with this wire? I am not worried about it passing code.

This is a link to calculate voltage drop based upon wire size and load.
https://www.calculator.net/voltage-drop-calculator.html

The total cross-section area, AWG or "circular mill" size of a stranded conductor is equivalent to that of a solid conductor for the same designated wire size. ... Similarly, there will be no less or more voltage drop whether you use stranded or solid wire and the current carrying capacity is the same.

[Lloyd]

Originally Posted by Dallasrules

I have an electrical question. I need to put a pedistal in for a 30amp trailer. I have a roll of wire that is 500 Ft. Roll GRAY STRANDED #10 THHN THWN-2 . It is about 125 feet from the house. I plan to run it above ground through pvc conduit for now, but eventually body it. Will I get too much current degradation with this wire? I am not worried about it passing code.

You are definitely asking for problems.
You better find some heavier wire, or figure on shortening the run significantly.
I believe the chart below is for solid copper, not the braided crap.

For 120-volt circuits:
14 AWG 50 feet

12 AWG 60 feet
10 AWG 64 feet
8 AWG 76 feet
6 AWG 94 feet

[dagst1]

I agree .
You will need a heaver gauge wire for that long of a run. Probably not what you wanted to hear since you already have that wire but it is just not big enough for that run.

[MartyinSC]

10 Ga wire is appropriate for 30 amp circuits up to about 9 or 10 meters, depending on the chart you use. In other words, about 30 feet, for non-critical circuits. Most 30 amp RV feeder cables are about 20 feet long. That doesn't leave you but a few feet for the continuation of the circuit. I used 10 Ga because the outlet is mounted right on an outdoor distribution panel. Check for wire ga amp charts, there are plenty of them on the web.

[Keithdodge2001]

3w2 would be nice it's good for 600 ft at 220v 120 proudly at least 1000 ft it real$$$$$

[MartyinSC]

Wire size is determined by amperage, not volts. It's the flow of electrons through the wire, not the amount of pressure behind it. Especially DC and single phase of AC.

[Keithdodge2001]

Yes I do understand that. It is the theory of ohm's and kirchhoff's law but for that distance #2 would not lose resistance and that size could handle almost everything

[Dallasrules]

We have decided to go with 6 guage wire.

[toolman.dustin]

To safely run at 30 amps over 120' you'll need the equivalent of 4 gauge wire. You can build 4 gauge wire using your 500' roll of 10 gauge wire by running the lines in parallel.
This chart says you'll need 4 gauge wire: ( https://www.cerrowire.com/products/r...e-drop-tables/ )

To avoid the expense of having to buy 4 gauge wire you can use your roll of 10 gauge wire. Using this calculator you'll need to run 4 parallel lines of 10 gauge to equal 4 gauge wire: ( https://www.wirebarn.com/Combined-Wi...tor_ep_42.html )
So, you'll end up using 480' of your 500' roll. The question is, do you really need 30 amps. If you really only need 15 amps (for example) then you may not need such heavy gauge wire.
Good luck, be careful.

[MartyinSC]

Originally Posted by toolman.dustin

To safely run at 30 amps over 120' you'll need the equivalent of 4 gauge wire. You can build 4 gauge wire using your 500' roll of 10 gauge wire by running the lines in parallel.
This chart says you'll need 4 gauge wire: ( https://www.cerrowire.com/products/r...e-drop-tables/ )

To avoid the expense of having to buy 4 gauge wire you can use your roll of 10 gauge wire. Using this calculator you'll need to run 4 parallel lines of 10 gauge to equal 4 gauge wire: ( https://www.wirebarn.com/Combined-Wi...tor_ep_42.html )
So, you'll end up using 480' of your 500' roll. The question is, do you really need 30 amps. If you really only need 15 amps (for example) then you may not need such heavy gauge wire.
Good luck, be careful.

Very interesting solution! I didn't even know there was such a calculator for multiple wires!
Regarding your last paragraph, I would be wary. To use less wire (and enable the circuit with a smaller than 30 amp breaker) to feed a 30 amp outlet could be a problem. A future home owner might figure "aha, this is why this thing is tripping, the breaker is too small!" Not knowing that the buried cable was too small.