Max length for 50 amp run?

[ELeland]

I'm in the same boat with about a 90' run. I purchased (2) 50 Amp 30 foot cords on ebay for $105 each. Excellent quality and work as planned.

https://www.ebay.com/itm/30-foot-50-...72.m2749.l2649

[egwilly]

My hernia just started hurting again thinking about hauling 80 feet of 50 amp cable around. UGH!

[Mike Tomas]

Originally Posted by HamboneTHW

So the geniuses that wired our house put the panel on the opposite side of the house from the driveway. I want to install a 50 amp receptacle at the house. When measuring, it will be about an 80' run of cord from the receptacle to the coach. Voltage calculations are showing a 1.34 voltage drop for 85' of 6/3 on 2 legs of 120 volts. Will this cause any issues for anything on the coach?

Already pricing power cords... This is gonna suck... But the convenience of being able to plug in at the house the day before leaving... Priceless

Not really much of an issue with 1.3v drop.

Some people call it 110, or 115vac. You should be fine. ESPECIALLY since you have calculated the votage drop. Your doing Great already!

[325BH]

Originally Posted by HamboneTHW

So the geniuses that wired our house put the panel on the opposite side of the house from the driveway. I want to install a 50 amp receptacle at the house. When measuring, it will be about an 80' run of cord from the receptacle to the coach. Voltage calculations are showing a 1.34 voltage drop for 85' of 6/3 on 2 legs of 120 volts. Will this cause any issues for anything on the coach?



Already pricing power cords... This is gonna suck... But the convenience of being able to plug in at the house the day before leaving... Priceless

Although you may never need 50 amps, it should be done right. Therefore, 50 amp draw @ 120 volts with #6 copper the voltage drop is 3.36 which is 2.8%. 50 amp service is 240/120, however campers generally only have 120 volt devices. The loads are distributed across both legs, however it is possible to draw 50 amps on one leg a 0 amps on the other leg... which is the worst-case scenario to account for. Voltage could drop to 116 which is totally fine. This represents the worst case scenario. Drawing current on both legs and/or drawing less than 50 amps, the situation only improves.

The worst part is running the wire.

[dowdytj]

You can step it down to the 20 amp adapter and use a quality extension cord. You can operate most everything. We have a 38 ft class A and when we plug into the house we run everything except the zone 2 a/c. Ensure you use a quality cord that won’t over heat and trip the breaker.

[Mikey143]

Go with 50amps, that way there are no limitations when relatives are visiting. My run from the panel on the wrong end of the house to the pedestal was 130’. I consulted an electrician and went up a size in the wire for the long run. Solid 50amps all the time running at 122vac. Be sure and run the ground back to the panel, or you will get a floating neutral. I wanted a couple of 120v outlets on the circuit too. I put a 60amp double breaker in the main panel. The pedestal at the other end has a double 50amp protecting the coach. I have a 120v 20amp circuit off each phase of the pedestal on GFCI. Runs great with no problems, no wire heating, good to go.