Pig tail

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#1

Originally Posted By: pdacey
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Can you pigtail the feeders on a sub panel?


[ Image: http://www.nachi.org/bbsystem/usrimages/I/IMG_0173.JPG ]

--
Slainte!

Patrick Dacey
swi@satx.rr.com
TREC # 6636
www.southwestinspections.com

#2

Originally Posted By: jpope
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I know of nothing that would prohibit it as long as listed connectors are used. . .

–
Jeff Pope


JPI Home Inspection Service


“At JPI, we’ll help you look better”


(661) 212-0738

#3

Originally Posted By: pdacey
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That’s pretty much what I thought, but I have never come across it. Thanks.

–
Slainte!


Patrick Dacey
swi@satx.rr.com
TREC # 6636
www.southwestinspections.com

#4

Originally Posted By: Joey D’Adamo
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The pigtails are fine but there needs to be a floating (separate) neutral bar. In this case, it is shared with the ground which is a problem if this is a sub panel.


Actually [subsequent edit]... Assuming both ends are Al, those nuts better be rated for Al-to-Al. Hopefully the wire on the other end is not copper because if that is Cu-to-Al there IS a really big problem.

#5

Originally Posted By: Greg Fretwell
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If there is no neutral load you would be OK like this. That would just be a parallel grounding conductor.


The aluminum under the wirenut may be an issue.

#6

Originally Posted By: jkline
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Greg - I always enjoy reading your posts, and I’ve learned a lot from you, Jeff, Bob Badger and others on this forum. Would you share a little more of your knowledge and explain how there can be no neutral load?

#7

Originally Posted By: jjackson
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I thought you had to have 4 wires entering a sub panel.

–
jj

#8

Originally Posted By: Greg Fretwell
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If the only load is 240v like most cooktops or A/C condensers there are no 120v loads so you don’t need a neutral. If you had a sub panel that only served 240v loads you don’t have to have a neutral bus in it.


Back in the olden days we didn’t even bring a neutral to the equipment panels in a computer room. The standard was that nothing had a line to neutral load. Everything was 208-240v. There were 120v outlets but they didn’t serve the system. Most big boxes had 120v “convenience outlets” in them but they were derived from internal transformers without a grounded conductor.

#9

Originally Posted By: jkline
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So did I.

#10

Originally Posted By: jkline
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Thanks for the explanation!