Which gauge power cords for which equipment?

[Johnny]

175s usually use 10 or 12 gauge X 50' cords. I think every OP and rotary extractor I've owned uses 14 gauge 50' cords. I've always used a 14 gage 50' cord on my CRB.

And I carry two 50' 12-gauge cords if I need more length.

What's the optimal-gauge cord for each tool? Would a 16-gauge X 50' cord be sufficient for a 10 inch CBR? No point in wrestling an anaconda when a lighter cord will safely work as well.

I know there's a formula, but I don't have it in the front of my brain.

Much obliged.

 

[The Great Oz]

Would a 16-gauge X 50' cord be sufficient for a 10 inch CBR?

Yes, they draw below 10 amps, so...


These kind of charts are all over the web. Note how the length affects the rating.

If you use two cords of different ratings, make sure the heaviest one is nearest the outlet.

It's unlikely you'll damage a too-small cord, but you can burn out motors.

PS: Those big, fat cords they sell at HD? A lot of them are copper-coated aluminum, and they're fat because they have to be. They're cheaper than all copper, but won't last long in regular use.

 

[Dolly Llama]

I wouldn't use 16ga for anything but LED Christmas tree lights or a multi-sprayer.

I wouldn't use 10ga for anything but hooking a small camper up...

stick with 12 for rotaries, portys and power saws
14 for lil peeder brushes and work lights if you must

..L.T.A.

 

[Johnny]

Yes, they draw below 10 amps, so...


These kind of charts are all over the web. Note how the length affects the rating.

If you use two cords of different ratings, make sure the heaviest one is nearest the outlet.

It's unlikely you'll damage a too-small cord, but you can burn out motors.

PS: Those big, fat cords they sell at HD? A lot of them are copper-coated aluminum, and they're fat because they have to be. They're cheaper than all copper, but won't last long in regular use.

Good to know. Thanks.