Run Table Saw on 150' extension cord?

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  #1  
Old 11-03-12, 03:56 PM
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Run Table Saw on 150' extension cord?

Not a joke.

I need to do some maintenance on an old barn.There is no electric to barn and will not be before spring.

I would love to run my Dewalt DW944X 15 amp 10" table saw at the location. I would have to run 150' of #12 stranded wire extension cord to the saw to do so.

I have very little electrical knowledge. Saw manual says it is OK, but I am having trouble believing that. I am thinking more in line that it would "burn up the saw" due to lack of ...

I would appreciate any input members care to make.

Thanks.
 
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  #2  
Old 11-03-12, 04:18 PM
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Not with a #12 extension cord. To get the voltage drop below 4% you would need a cable with #8 copper conductors. Anything less and you have a pretty decent chance of burning up the motor.

Now if you could convert the saw to 240 volts this would be feasible.
 
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Old 11-03-12, 04:23 PM
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A generator might make more sense. Have you priced a 150 foot #12 extension cord?
 

Last edited by ray2047; 11-03-12 at 05:08 PM.
  #4  
Old 11-03-12, 04:36 PM
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Can you tell me how to figure voltage drop? I did tons of searches but I get mostly info that is less than accurate.

Is 12 stranded equal to 12-2 Romex for carry?

Generator may well be the answer. I have 300 feet of #12 extension, but appears tain't no way that #12 will work.

I appreciate the guidance.
 
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Old 11-03-12, 05:12 PM
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Is 12 stranded equal to 12-2 Romex for carry?
Yes.

Try this calculator. Use the actual amps you will use. electrician2.com voltage drop calculator
 
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Old 11-03-12, 05:25 PM
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The Dewalt 10" table saw is model #DW744X. My DW744X manual has a table on page 2 that details minimum cord gage. If the saw was 12 amp, a 12 ga cord that was 101-150 ft long would be okay but since the saw is 15 amp, they only approve a 12 ga cord up to 50 ft.

So how does your saw manual say that it's okay? You could do it... (even though it's not recommended) but you certainly wouldn't be able to push the saw very hard... for the reason you mentioned.
 
  #7  
Old 11-03-12, 06:20 PM
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Quote [So how does your saw manual say that it's okay? You could do it... (even though it's not recommended) but you certainly wouldn't be able to push the saw very hard... for the reason you mentioned.]

My manual does not say it is OK. My bad. (Don't know which is going first, eyes or memory.)
 
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