Electrical question...

obieone
obieone Posts: 5,077
edited June 2011 in The Clubhouse
Whats the max. distance you can run any size wire, before you have to up it to the next gauge, specifically, from a feed breaker, to a local disconnect?
Example: 10 gauge is good for 30 amps, but for how long, before going to 8 gauge?
500', 1,000'?
And how many turns are permissable?
TIA
I refuse to argue with idiots, because people can't tell the DIFFERENCE!
Post edited by obieone on
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Comments

  • mrbiron
    mrbiron Posts: 5,711
    edited June 2011
    The resident electricians will definitely tell you a better answer than my suggestion. Look up a good Voltage Drop calculator on the WWW. and toy around with the numbers until some sort of magic happens. Some of them allow you to put in the amperage, run length, volts, material, voltage drop and will spit out the wire size you need.

    Try this one...:confused:
    http://www.southwire.com/ProductCatalog/CalculatorController
    Where’s the KABOOM?!?! There’s supposed to be an Earth shattering KABOOM!!!
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  • I-SIG
    I-SIG Posts: 2,240
    edited June 2011
    We have custom spreadsheets at work for this stuff, but it might be a bit large for a circuit like you describe.

    What size and type load do you have? I was given some old sheets for agricultural use that may have motor sizes, voltages, lengths, etc. PM me...

    Wes
    Link: http://polkarmy.com/forums

    Sony 75" Bravia 4K | Polk Audio SDA-SRS's (w/RDO's & Vampire Posts) + SVS PC+ 25-31 | AudioQuest Granite (mids) + BWA Silver (highs) | Cary Audio CAD-200 | Signal Cable Silver Resolution XLR's | Rotel Michi P5 | Signal Cable Silver Resolution XLR's | Cambridge Audio azur 840C--Wadia 170i + iPod jammed w/ lossless audio--Oppo 970 | Pure|AV PF31d
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  • obieone
    obieone Posts: 5,077
    edited June 2011
    Thanks guys, but nevermind. I had a client keep telling me it was my HVAC equipt. that was tripping their breaker, because their plant electrician swore it wasn't anything on their end.
    Yesterday, I had the maintenance supervisor open the feed panel, and we found a 15A breaker on a 30A circuit.:rolleyes:

    The reason for this thread, was, I thought the feed was a lot further away from the load, than it was.
    I refuse to argue with idiots, because people can't tell the DIFFERENCE!
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