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Old 10-14-2015, 10:10 AM   #1
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Shore Line Question

Hey there everyone and good morning.
I have a question and was hoping someone more experienced than I could answer. I was in the process of doing a small electrical modification yesterday and ran across this. I was getting ready to install a inline surge protector 30 amp in my trailer. I have a 27RL Keystone cougar 2012. The shore line cord comes into the trailer at the rear of the unit, and coils up in the bottom of a small cabinet. I removed the cabinet to gain more access to install the surge protector. What I found was the shore line cord which is composed of 10 gauge wire, terminates into a junction box. The wire that comes out of the junction box seems to be only 12 gauge romex (orange color) and I assume goes to the converter. Sorry to be so long winded, but my question is if this is normal? I was under the impression that the 10 gauge shore line went all the way to the panel box or the converter. Is sizing down to a 12 gauge wire ok or standard? Any advice and instruction is greatly appreciated
I do not want to proceed until I get some answers. Thanks Tator
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Old 10-14-2015, 10:23 AM   #2
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Starting in about 2001 most brands of non-metallic cable (romex) have color coded the sheaths. White-#14, yellow-#12, orange-#10.
The outer jacket should also have printing on it with the wire gauge, etc.
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Old 10-14-2015, 11:09 AM   #3
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As mentioned above, the sheath should have printing to ID the wire type/gauge/etc.
Whether or not is it 10 ga, just figure out how much more you need to pigtail between the junction box and the SP--probably can utilize the extra in the coil you have. You can place the SP on either side of the junction box, as long as the only wire out is to the service panel. Personally, if the junction box is only there for a convenience to the mfg, I would consider putting the SP in place of the junction box.
Even if the wire to the service panel turns out to be 12ga, it probably is sufficient for 30a service, but prob it is 10ga.
Joe
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Old 10-14-2015, 11:35 AM   #4
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If you are talking only a couple of feet it will not make any noticeable difference. It's too short to be a significant resistance and big enough that it will not get overly warm let alone melt. If we were talking a 50 ft extension cord I might say something else.
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Old 10-14-2015, 01:57 PM   #5
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Quote:
Originally Posted by rocketslc View Post
Starting in about 2001 most brands of non-metallic cable (romex) have color coded the sheaths. White-#14, yellow-#12, orange-#10.
The outer jacket should also have printing on it with the wire gauge, etc.
Hey there and thank you for your input. The color of the sheath is orange.
However there is not enough visible to see any printing on it. The more I think of it the wire might be 10 gauge. The run from the junction box to the panel is only about 6 ft.
Thanks for you input starting to feel a little bit better about the install.
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Old 10-14-2015, 02:00 PM   #6
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Originally Posted by wingnut60 View Post
As mentioned above, the sheath should have printing to ID the wire type/gauge/etc.
Whether or not is it 10 ga, just figure out how much more you need to pigtail between the junction box and the SP--probably can utilize the extra in the coil you have. You can place the SP on either side of the junction box, as long as the only wire out is to the service panel. Personally, if the junction box is only there for a convenience to the mfg, I would consider putting the SP in place of the junction box.
Even if the wire to the service panel turns out to be 12ga, it probably is sufficient for 30a service, but prob it is 10ga.
Joe
Hey wing nut thanks for the information.
I tend to feel the same. It would make a much neater installation to eliminate the junction box and install directly to the surge protector.
Thanks again,
Tator Tot
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Old 10-14-2015, 02:05 PM   #7
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If you are talking only a couple of feet it will not make any noticeable difference. It's too short to be a significant resistance and big enough that it will not get overly warm let alone melt. If we were talking a 50 ft extension cord I might say something else.
Thanks Nothemark.

From the responses I received I feel more confident about this install. It does seem logical that the orange romex wire is the right gauge. The trailer is 3 years old I bought it used. I just feel better doing a little research is safer that just barging ahead.
Thank you for your input

Tater Tot
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