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#4591500 - 12/01/17 09:05 PM Extension cords
4WD Offline


Registered: 09/21/10
Posts: 6531
Loc: Texas
I’m going to set up a 15 amp saw about 60 feet from the plug to do a weekend project …
Have three 25’ cords: 10awg, 12 awg, 14 awg …

What is best order to avoid drop in the line?

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#4591504 - 12/01/17 09:08 PM Re: Extension cords [Re: 4WD]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
You're better off using the 10 and the 12 but forget about the 14.

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#4591505 - 12/01/17 09:09 PM Re: Extension cords [Re: 4WD]
HangFire Offline


Registered: 08/21/13
Posts: 2506
Loc: Central Maryland
You'll get the same drop in any order.
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#4591516 - 12/01/17 09:19 PM Re: Extension cords [Re: 4WD]
KJSmith Offline


Registered: 08/31/15
Posts: 267
Loc: TX
Dude, cordless, step up to the 2000's.

14awg is good for 15amps, use all three and your fine.
If it was me, I would have the 10awg closest to the house and the 14 at the end.
The only reason I say that is if one is going to get warm it should be the 14.
If its at the end, its furthest away from the house, closest to you and gives you the best chance of catching it.

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#4591524 - 12/01/17 09:30 PM Re: Extension cords [Re: KJSmith]
4WD Offline


Registered: 09/21/10
Posts: 6531
Loc: Texas
Ha, I have a number of cordless tools … just for the Dewalt saw and my treated lumber looks pretty soggy …
Thanks …

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#4591526 - 12/01/17 09:32 PM Re: Extension cords [Re: Merkava_4]
4WD Offline


Registered: 09/21/10
Posts: 6531
Loc: Texas
Originally Posted By: Merkava_4
You're better off using the 10 and the 12 but forget about the 14.


Then I should just go buy another 12 … left too many of them at the bay house …

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#4591561 - 12/01/17 10:45 PM Re: Extension cords [Re: 4WD]
Merkava_4 Offline


Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
Originally Posted By: 4WD
Then I should just go buy another 12 … left too many of them at the bay house …


That depends on how special your saw is. The saw is going to do its job whether its using Voltage or Amps. It just so happens that in the absence of Voltage, the saw is going to pull more Amps. When it pulls more Amps, the windings in the motor heat up. Heat up too much and your motor is toast.

I think you're probably good with 12AWG up to 50ft.

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#4591719 - 12/02/17 06:55 AM Re: Extension cords [Re: 4WD]
eljefino Offline


Registered: 06/15/03
Posts: 32770
Loc: ME
Your internal house wiring could be another 50 feet of 14 AWG and we all assume that it's "perfect" at the outlet. Use what you've got, and stop work if it sounds different from normal.

I ran an air compressor off 100 feet of 16 AWG extension cord and it worked fine for a while until the cord heated up and its resistance went up. For intermittent use of a saw you shouldn't have this problem.

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#4591759 - 12/02/17 07:38 AM Re: Extension cords [Re: 4WD]
Linctex Offline


Registered: 12/31/16
Posts: 6186
Loc: Waco, TX
Originally Posted By: HangFire
You'll get the same drop in any order.


100% correct.

AC power goes looking for "the weakest link in the chain"

Is it a miter saw?
Like on for a few seconds, then off for many minutes?
You should be fine.

A continuous load, like a big shop vac or air compressor, would test the 14 gauge cord to it's limits.

Remember, intermittent loads are always calculated on a different chart than continuous loads.
_________________________
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#4591761 - 12/02/17 07:39 AM Re: Extension cords [Re: 4WD]
Donald Offline


Registered: 03/21/04
Posts: 20548
Loc: Upstate NY
Originally Posted By: 4WD
Originally Posted By: Merkava_4
You're better off using the 10 and the 12 but forget about the 14.


Then I should just go buy another 12 … left too many of them at the bay house …


Yes. I would buy a 50' #12. The cheesy plugs and outlets are the weak parts of most extension cords. Best would be to buy a 75' and replace the plug and outlet.
_________________________
2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)


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#4591762 - 12/02/17 07:39 AM Re: Extension cords [Re: 4WD]
MasterSolenoid Offline


Registered: 09/26/17
Posts: 173
Loc: One Step Beyond

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#4591763 - 12/02/17 07:42 AM Re: Extension cords [Re: Donald]
4WD Offline


Registered: 09/21/10
Posts: 6531
Loc: Texas
Thanks ~ will do … the wall outlet is a new 20 amp 110v “homerun” from a 220V panel … (GFCI too)

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#4591766 - 12/02/17 07:44 AM Re: Extension cords [Re: MasterSolenoid]
4WD Offline


Registered: 09/21/10
Posts: 6531
Loc: Texas
Interesting ~ was just there yesterday too ~ bet somebody got a bonus for that name too wink

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#4591956 - 12/02/17 11:07 AM Re: Extension cords [Re: 4WD]
Nick1994 Offline


Registered: 02/19/13
Posts: 10281
Loc: Phoenix, AZ
It should be fine to use it all in any order.

My dad used to weld for an hour at a time on a 100’ extension cord plugged into an outlet 50’ from the breaker box.
_________________________
2015 Hyundai Sonata 2.4L 80k Mobil 1 AFE 0w30 & OEM
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1996 Jeep Cherokee 4.0L 146k Mobil 1 HM 10w40 & Fram Ultra

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#4591981 - 12/02/17 11:34 AM Re: Extension cords [Re: 4WD]
sleddriver Offline


Registered: 02/06/10
Posts: 4706
Loc: Central Texas
Order doesn't matter as it will be a series connection. Use the 10 + 12g to get close.

As you're doing a weekend project, don't worry about wire gauge resistance consequences. It's not worth it. In a permanent installation, used day-in/day-out, with heavy use, then it would matter and should be considered.
_________________________
1998 Volvo V70 T5 226,808 mi. Original Owner.
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"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson

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