1) Your calculator is goofy. #10 gives 3%, so I don't know why your
calculator requires #8.
2) 3% is a code requirement for branch circuits. It has nothing to do with
extension cords. As I indicated above, 100' is probably not a good choice,
but if the extension cord is rated for 15a, it is legal.
Ten years ago I built a 6,000 sq. ft. building using a 120 volt, 1.5 HP
contractor's saw. I used a 12 gauge Romex, 250' extension cord. It didn't melt.
I am still using the same saw/motor. Not a recommendation, just a true
When I built my shop, I used a 50' and a 100' 10 gauge extension cord set to
run 110 volt to my tools, including a table saw rated at 12 amps (Delta
contractor's model). No problems with cord or saw. That was about 7 years ago,
at least when I started.
"In the final choice a soldier's pack is not so heavy as a prisoner's chains."
Dwight D. Eisenhower
I went through 24 notes and nobody asked what his line voltage was at the
house. Mine cruises at around 126 from FPL and I can afford to lose some volts
in a cord. If it is 110 you are already in trouble.
On Fri, 12 Dec 2003 21:17:10 +0000, stoutman wrote:
If the cord is warm to the touch, it's gauge is too fine.
#10 wire extension would work, but it may be a bit stiff. If you are
consistently in need of the 100' cord, consider putting in a separate
outlet for the saw. A 20 amp circuit would work.
HomeOwnersHub.com is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here.
All logos and trade names are the property of their respective owners.