Use The Right Extention Cord Length
Sometimes it is tempting to run long connections of extension cords to get to a job site that is far from electricity. There are at least two things you need to remember when this thought pops into your head. The first is that you may be damaging your tool, and it certainly is not running at its maximum performance. Secondly, if the run is long enough, you could start a fire or at least melt your extension cords. This all occurs because resistance builds up in a wire as it gets longer and thinner. The larger resistance caused more power to be expelled therefore causing heat. I have attached a chart that I use at home whenever I am in doubt. I hope this helps you on your next project.
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|
Length of Cord |
Max. Amps |
Gauge |
|
25ft |
10 |
18 |
|
25ft |
13 |
16 |
|
25ft |
15 |
14 |
|
50ft |
5 |
18 |
|
50ft |
10 |
16 |
|
50ft |
15 |
14 |
|
75ft |
5 |
18 |
|
75ft |
10 |
16 |
|
75ft |
15 |
14 |
|
100ft |
5 |
16 |
|
100ft |
15 |
12 |
|
125ft |
5 |
16 |
|
125ft |
15 |
12 |
|
150ft |
5 |
16 |
|
150ft |
12 |
12 |
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Thanks for the info. I just recent purchased some 25 foot cables, but never took into consideration the amp and Gauge info. I think many of us are unaware about electrical requirements in general, and it’s good to have some help!
With the recent invention of the cordless extension cord from http://www.toolguy.com, length requirements have changed.
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I like the idea of a cordless extension cord, I will have to check that out
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