I did google, but I'm still confused.
My table saw draws 15 amps. I have been using a 100 ft 16 gauge extension
cord to run her, but I found out recently that this is to wimpy a cord. My
manual recommends a 12 gauge extension cord not exceeding 50 feet.
My question is if I go to 100 feet of extension cord, is 12 gauge still ok?
I guess do to the voltage drop with the longer cord that I may need a 10
NO ! ! !
As it is, you have a disaster waiting to happen.
I have a 100 ft power cord for my saw, it's 10 ga; however, it is also wired
for 240V service.
If you ever try to rip 8/4 white oak, you will understand why.
For your application, if you decide to use 12 ga anyway, at least operate at
S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Mostly good stuff here, but 8 is not necessary. The advice to go to 240V is
good. Why not staple a piece of Romex to the ceiling and be done with it.
Portable cordage is very expensive!
12 will do fine at 120V, unless you are running max load or more. At 240V,
12 is more than enough.
I don't know enough about electricity to know if this idea is any good, but
I've wondered about building an extension cord that uses two identical sets
of conductors. The male end could be two plugs. The female ends would
connect to the proper locations on a standard dual outlet. Would this work?
not sure what you're trying to do here, but it won't work ; ^ )
if you're trying to make 220V it won't work because the two
receptacles on the standard dual outlet are just connected together
inside the wall. to get 220 you need to get power from both left and
right sides of the meter panel
if you're trying to get more amps from the standard dual outlet it
won't work because again the dual receptacle is coming from one
if you're trying to beat the voltage drop of your light weight cord it
theoretically would work. don't do it... better, cheaper and less
chance for dumb accidents to just go out and buy yourself a commercial
extension cord. if you need more than 50 feet but less than 100 get a
set of ends while you're at it and cut the extra off and make a short
heavy cord with a gang box on the female end. they come in handy.
Dang, screwed up that one. You must figure 200ft because the 2 wires.
I knew that. Yup, 12 is definitely out. 10 is on the edge. 8 would
be the safest way to go, especially figuring the voltage drop to
where you're plugging it into.
Sorry for the mis-info.
John, in Minnesota
The extension cord should say how many amps it can handle. If your 100ft 12
gauge says 15a is okay, you are fine. Since we don't know what the
insulation is made of, we can't really say.
That is just what is safe.
Whether it is reasonable is a whole other story. Unless the outlet is right
next to the panel, 15a is a lot to put through a 100' extension cord; don't
do it unless you have to as it is probably not good for your motor.
Somebody pointed out the voltage drop was not too bad, but he ignored the
voltage drop to the outlet.
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