need to solve voltage drop over long run

[dedwrinkle]

How close did you say the first sub panel is to the loads you want to add. Is it 800 feet and you want a 120vac cable for your other loads ?

the first the first sub panel is 800 feet from the main and the loads is only about a hundred feet from the first sub panel

 

[Megawatt]

the first the first sub panel is 800 feet from the main and the loads is only about a hundred feet from the first sub panel

Just run what you need go that panel and since you don’t have an equipment ground use the ground rod at the sub panel. It aches me to tell you use that ground rod but you have to have some kind of ground. There is so many code violations on this application and always pull 4 wires from now on.

 

[dedwrinkle]

Just run what you need go that panel and since you don’t have an equipment ground use the ground rod at the sub panel. It aches me to tell you use that ground rod but you have to have some kind of ground. There is so many code violations on this application and always pull 4 wires from now on.

the the setup was installed 15 years ago and whoever did it did not think ahead that's for sure. The ground rod is at the very end at the receptacle and where the equipment is going to be it's not at the panel . that didn't make any sense why the guy said put it there either. Set a reminder the second panel do I just come off the two hot leads coming into the first panel or do I got to run to Breakers over to the second panel to get the power to the second panel? not meant to be pretty just got to get me by until I start building then I'm going to put in a hundred amp panel take a short cut and cut out about 400 ft and do it right.

 

[Megawatt]

the the setup was installed 15 years ago and whoever did it did not think ahead that's for sure. The ground rod is at the very end at the receptacle and where the equipment is going to be it's not at the panel . that didn't make any sense why the guy said put it there either. Set a reminder the second panel do I just come off the two hot leads coming into the first panel or do I got to run to Breakers over to the second panel to get the power to the second panel? not meant to be pretty just got to get me by until I start building then I'm going to put in a hundred amp panel take a short cut and cut out about 400 ft and do it right.

Glad to hear you are learning and good luck. Be careful you can’t see it or smell it but it can kill. Turn off all power to that sub panel you are fixing to work in.

 

[dedwrinkle]

Glad to hear you are learning and good luck. Be careful you can’t see it or smell it but it can kill. Turn off all power to that sub panel you are fixing to work in.

so the way I understand it I don't need a second sub panel I need to redo the first one. So I can add a separate breaker for it.

 

[Megawatt]

so the way I understand it I don't need a second sub panel I need to redo the first one. So I can add a separate breaker for it.

Yes but what do you mean about redoing the first sub panel.

 

[dedwrinkle]

Yes but what do you mean about redoing the first sub panel.

it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel
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it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel

That didn't make sense. It has a 4:15 amp breaker block and that's all there room there's room for. So I would just need another panel with more space to add another breaker is what I understand it would be the same thing as getting another panel and adding a breaker

 

[Megawatt]

it has one block with for 15 amp breakers on it and that's it has one block with 4:15 amp breakers on it and that's all the space there is so it have to get another panel so I can add to it instead of getting another panel
[automerge]1592929832[/automerge]

That didn't make sense. It has a 4:15 amp breaker block and that's all there room there's room for. So I would just need another panel with more space to add another breaker is what I understand it would be the same thing as getting another panel and adding a breaker

Yes it would probably be a good idea to change the panel that has like 12 or 16 circuits NEMA 3 panel which means outdoor approved

 

[dedwrinkle]

Yes it would probably be a good idea to change the panel that has like 12 or 16 circuits NEMA 3 panel which means outdoor approved

Thanks for the information!

 

[marconi]

An idea for you. Instead of running in a very long thicker cable to solve the voltage drop and power delivery problem, what about installing a Solar PV, battery and hybrid charger-inverter system at the location 800ft from the mains intake? See my outline sketch attached. Your required voltage, frequency and power is generated locally ie: at the 800ft location. The long run remains and is only used to charge the battery when solar alone is insufficient . The sizing of the solar panels and battery system depends on the power you require and the daily energy consumption and load profile of the pump(s) and RV etcetera. The battery charging scheme is over say 24 hours so can be at a lower current so less voltage drop. The high power/current requirement is satisfied by the inverter and battery. Solar PV of course will allow you to economise on your mains electricity bill. Voltage drop is now only a problem between the inverter and its loads (100ft?).

B = battery I = Inverter P = PV panels C= Charger