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Open Roads Forum  >  Tech Issues

 > Extending 10/3 gen cable?

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tealboy

orlando, fl

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Posted: 09/12/17 06:44pm Link  |  Quote  |  Print  |  Notify Moderator

I made my 10/3 cable too short at 25 feet, need 35 feet. Neighbor gave me 20 feet of 10/3 so wondering if it is ok to splice in 10-15 feet and if so, what tips do u have for making a good quality splice that will hold up. Only running up to 4000 watts.

ScottG

Bothell Wa.

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Posted: 09/12/17 06:49pm Link  |  Quote  |  Print  |  Notify Moderator

Yes, it will be fine.
Now I know some will say you need 0000 or something but in the real world, you will be OK.


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Ranger Smith

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Posted: 09/12/17 07:00pm Link  |  Quote  |  Print  |  Notify Moderator

I would get some of those splice connectors they use for submersible well pumps. I think that is about the best you can get


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time2roll

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Posted: 09/12/17 07:09pm Link  |  Quote  |  Print  |  Notify Moderator

Do you want a waterproof splice or just get the ends and make up an extension?

Top quality TT-30 connectors.

Heat shrink butt splice

If you splice the cord remove the RV end from the J-box and extend the tail. Don't cut the middle or the plug off. Seal it with heat shrink.

I would make an extension if temporary. Splice if long term.
Actually I would just get a longer pre-molded cord.


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BFL13

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Posted: 09/12/17 07:10pm Link  |  Quote  |  Print  |  Notify Moderator

I would put a male and female end on the new piece and just use it as a very long dogbone.

Time2roll beat me by a minute! He is another great mind that thinks alike though. [emoticon]


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KD4UPL

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Posted: 09/12/17 07:29pm Link  |  Quote  |  Print  |  Notify Moderator

Just splicing it in the middle isn't good practice. Just get a male and female and a make another cord. This will give you greater flexibility in total length; you'll have 3 choices: 25, 20, or 45.
#10 is only rated for 30 amps so at 120v you can only put 3,600 watts thru the cord.

theoldwizard1

SE MI

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Posted: 09/12/17 08:25pm Link  |  Quote  |  Print  |  Notify Moderator

If you are going to put a splice in the middle, it really should be in a metal handy box with a plain cover
[image]

Use Romex clamps to prevent the wire from pulling out and use some caulk to seal and holes. For good measure, run a bead of caulk around the edge of the cover before screwing it down.

pianotuna

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Posted: 09/12/17 08:59pm Link  |  Quote  |  Print  |  Notify Moderator

Hi,

I'm in the same boat as BFL13 and time2roll. Add some male and female ends.

It isn't the watts that are important--it is the amps.


BFL13 wrote:

I would put a male and female end on the new piece and just use it as a very long dogbone.

Time2roll beat me by a minute! He is another great mind that thinks alike though. [emoticon]



Regards, Don
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HTElectrical

Las Vegas

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Posted: 09/13/17 12:12am Link  |  Quote  |  Print  |  Notify Moderator

theoldwizard1 wrote:

If you are going to put a splice in the middle, it really should be in a metal handy box with a plain cover
[image]

Use Romex clamps to prevent the wire from pulling out and use some caulk to seal and holes. For good measure, run a bead of caulk around the edge of the cover before screwing it down.


You can't use Romex clamps on S/O cord. You can use these.[image]

This would be better.
Splice Kits

[image]

Product Details
2237A

MANUFACTURER: 3M

DESCRIPTION: CABLE SPLICE KIT, COLD SHRINK, PORTABLE, USE ON 4 CONDUCTOR 12-10 AWG CABLE (UP TO 0.62" CABLE DIAMETER), VOLTAGE RATING UP TO 1000 V, MAXIMUM RECOMMENDED VOLTAGE RATING 600 VOLT

KIT INCLUDES:
1 NEOPRENE, COLD SHRINK TUBE
1 NEOPRENE, FILLER
5 BUTT CONNECTORS
2 STRIPS, SEALING MASTIC
1 ABRASIVE CLOTH
1 ROLL, WHITE PLASTIC ELECTRICAL TAPE
1 INSTRUCTION SHEET

* This post was edited 09/13/17 12:21am by HTElectrical *


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Dusty R

Charlotte Michigan 48813

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Posted: 09/13/17 06:05am Link  |  Quote  |  Print  |  Notify Moderator

Last I knew NEC does not allow cords to be spliced.

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