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How to choose the correct wire gauge & size of a wire

  1. Nov 4, 2011 #1
    I Suppose, need to choose a correct wire gauge for a lighting circuit, how to calculate it. Input load 12V Battery, load (two 100 W bulb), .Please clarify.
  2. jcsd
  3. Nov 4, 2011 #2
  4. Nov 4, 2011 #3
    I would recommend that you Google "national electric code ampacity of wires".
  5. Nov 4, 2011 #4


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    Gold Member

    btw, you need to choose the gauge of wire for just over, rather than just under the current it needs to carry. (It needs to be said)
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