[Shop-talk] Extension cord length vs. wire gauge

[David Hillman]

On Tue, 30 Oct 2018, Scott Hall wrote:
> I need about 300 get of extension cord. 16 AWG was fine at 100 ft. Can I
> string 3 of those together without a problem, or should I go up a size?
> Draw is 4 amps.

<http://www.paigewire.com/pumpWireCalc.aspx>

    Depends on your allowable voltage drop.  At 3%, this calculator says 
you need 10 gauge.

--
  David Hillman