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Electrical Inspections Contains discussions about electrical systems. This includes receptacles, panels, wiring, etc.

 
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  #1  
Old 1/20/12, 8:58 PM
Sean Fogarty's Avatar
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Default Just use a jumper

to energize the other side of the sub panel..
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just-use-jumper-138-127.jpg  




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  #2  
Old 1/20/12, 9:38 PM
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Default Re: Just use a jumper

Curious and seriously... did you call out that missing knockout?
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  #3  
Old 1/20/12, 9:48 PM
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Sean Fogarty Sean Fogarty is offline
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Default Re: Just use a jumper

Quote:
Originally Posted by jjonas View Post
Curious and seriously... did you call out that missing knockout?
Yes along with the rest of the panel as well.




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  #4  
Old 1/20/12, 9:55 PM
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Default Re: Just use a jumper

Quote:
Originally Posted by sfogarty View Post
Yes along with the rest of the panel as well.
Thank you. I always wondered if others do as well, irregardless of the other issues.
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  #5  
Old 1/20/12, 10:42 PM
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Jeffrey R. Wicklander Jeffrey R. Wicklander is offline
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Default Re: Just use a jumper

Is the pic sideways or is that the way it was mounted?

Jeff



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  #6  
Old 1/21/12, 8:10 AM
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Greg Keene, CPI Greg Keene, CPI is offline
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Default Re: Just use a jumper

Is that lamp wire coming out of the bottom left breaker?



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  #7  
Old 1/21/12, 11:13 AM
Jim Port Jim Port is offline
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Default Re: Just use a jumper

It does look a lot like lamp or zip cord.
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  #8  
Old 1/21/12, 12:34 PM
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Jeffrey R. Pope Jeffrey R. Pope is offline
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Default Re: Just use a jumper

I see this crap all too often, and usually recommend removal or replacement in lieu of "corrections."

It's apparently being back-fed by a single-pole breaker, and the jumper is being used to supply power to (what should be ) the opposite leg of 120V. In addition, it appears to be a sub panel, in which case the neutrals should be isolated from the enclosure. This is most certainly a "home owner" installation.

I always call out missing KO's.



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  #9  
Old 1/21/12, 2:18 PM
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Default Re: Just use a jumper

Quote:
Originally Posted by jpope View Post

I always call out missing KO's.
As do I, but this one would be for a different reason that the typical missing knockout, would it not?
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  #10  
Old 1/21/12, 3:34 PM
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Default Re: Just use a jumper

Quote:
Originally Posted by jjonas View Post
As do I, but this one would be for a different reason that the typical missing knockout, would it not?
I'm not sure I understand what you mean. The missing KO is insignificant compared to the rest of the issues, if that's where you're going...



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  #11  
Old 1/21/12, 4:19 PM
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Sean Fogarty Sean Fogarty is offline
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Default Re: Just use a jumper

Quote:
Originally Posted by jpope View Post
I'm not sure I understand what you mean. The missing KO is insignificant compared to the rest of the issues, if that's where you're going...
The fact that the missing knock out was against wood also will prevent entry of forgien debris and animals. Like you said the knockout is the minimal.

The whole garage was wired by the previous owner and it showed.




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Fogarty Inspection Services Group of Knoxville TN

Home inspections, Commercial Inspections, Thermal Imaging, Mold, Enviromental Testing and Radon Testing for Knoxville TN, Oak Ridge TN, Maryville, Clinton, Farragut, Lenoir City, Pigeon Forge, Sevierville and all the surrounding areas.

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www.thermal-inspection.net

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  #12  
Old 1/21/12, 6:04 PM
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Jeffrey R. Jonas Jeffrey R. Jonas is online now
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Default Re: Just use a jumper

Quote:
Originally Posted by sfogarty View Post
The fact that the missing knock out was against wood also will prevent entry of forgien debris and animals. Like you said the knockout is the minimal.

The whole garage was wired by the previous owner and it showed.
Exactly, and I agree it is a lesser issue, but it is still an issue.
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  #13  
Old 1/21/12, 7:25 PM
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Sean Fogarty Sean Fogarty is offline
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Default Re: Just use a jumper

Quote:
Originally Posted by jjonas View Post
Exactly, and I agree it is a lesser issue, but it is still an issue.
Sadly unless I can find nothing else to gripe about the knock outs usually go undocumented. Many times the panels with missing knock outs have far more issues to focus on.




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Fogarty Inspection Services Group of Knoxville TN

Home inspections, Commercial Inspections, Thermal Imaging, Mold, Enviromental Testing and Radon Testing for Knoxville TN, Oak Ridge TN, Maryville, Clinton, Farragut, Lenoir City, Pigeon Forge, Sevierville and all the surrounding areas.

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www.homeinspectorknoxville.com

www.moldandradon.com

www.thermal-inspection.net

www.commercial-building-inspector.net
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  #14  
Old 1/22/12, 2:59 PM
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Default Re: Just use a jumper

Although the wood does keep stuff out of the KO it doesn't satisfy the NEC requirement where the seal has to be a material equivalent to the enclosure.

Quote:
110.12 Mechanical Execution of Work.
Electrical equipment shall be installed in a neat and workmanlike manner.
FPN: Accepted industry practices are described in ANSI/NECA 1-2006, Standard Practices for Good Workmanship in Electrical Contracting, and other ANSI-approved installation standards.
(A) Unused Openings. Unused openings, other than those intended for the operation of equipment, those intended for mounting purposes, or those permitted as part of the design for listed equipment, shall be closed to afford protection substantially equivalent to the wall of the equipment. Where metallic plugs or plates are used with nonmetallic enclosures, they shall be recessed at least 6 mm (¼ in.) from the outer surface of the enclosure.
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  #15  
Old 1/22/12, 3:19 PM
Joseph M. Whitt Joseph M. Whitt is offline
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Default Re: Just use a jumper

Exposed wood can catch on fire. The purpose of the enclosure is to contain the fire.

I would call out a missing ko quicker than I would two neutrals under one screw.



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