Mike Dolt Enterprises
Mike Dolt Enterprises
User: Kadgarth, Location: Afghanistan
Asked on: Monday, April 25, 2011 at 8:21 am EDT
Answered on: Tuesday, May 14, 2024 at 4:35 am EDT
Question: I looked for an introduction forum and couldn't find one. If theres one and I missed it I apologize.Heres my issue:I need to get ~40A about 700' from the nearest transformer.Throwing conventional wisdom out the window, is there any actual reason I can't use the following cable to get it done:1/0 Al 5kv THHNI can bump up the transformer a couple taps if need be too.The load will be an AC/Heater unit, a few lights, and a couple receptacles.
Hello and welcome to the forum.That size cable is certainly large enough to carry 40A at 700'. You may need to use a larger transformer if the voltage drop is too high.However, I would not recommend using THHN wire for this application. THHN wire is not rated for direct burial, and it is not UV resistant. It would be better to use a cable that is rated for direct burial, such as UF-B or USE-2. Flag for review