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#51051 - 04/19/05 07:00 PM Abandoned runs
bot540 Offline
Member
Registered: 09/14/04
Posts: 174
Loc: Vernon Hills, IL
I'm doing a rehab job turning a old hotel into a retirement center and there is alot of exsisting openings that will no longer be in use. Does the NEC make mention of abandoned boxes,runs,ect. I wondering if I need to remove these completely to be code complient or if I can just demo the run that feeds these and let them mud over them?
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#51052 - 04/19/05 07:45 PM Re: Abandoned runs
highkvoltage Offline
Member
Registered: 08/13/04
Posts: 34
Loc: Massillon, Ohio, USA
I am almost possitive there is a section that you have to remove any unused old conduit, box, equipment and conductors. I remember it from the 2002 NEC code class. I am trying to look it up for you.
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#51053 - 04/19/05 08:52 PM Re: Abandoned runs
hbiss Offline
Member
Registered: 12/16/03
Posts: 886
Loc: Hawthorne, NY USA
No, only low voltage. This has been a hot topic for some who would like to see the code changed to require all abandoned wiring and materials removed.

The reason low voltage wiring must be removed is because it adds to the fire/smoke load. Tough to argue that basis when you are talking about pipe and boxes. About the only thing it could be is a workmanship issue which the code does not strictly define.

-Hal
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#51054 - 04/20/05 12:06 PM Re: Abandoned runs
mxslick Offline
Member
Registered: 10/24/04
Posts: 803
Loc: Atomic City, ID USA
On some of the Air Force installations I've been on, any abandoned boxes/conduits were labeled "ABNDN"

I guess one could tag any wires the same way...
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#51055 - 04/20/05 02:43 PM Re: Abandoned runs
Ryan_J Offline
Moderator
Registered: 08/19/03
Posts: 1374
Loc: West Jordan, Utah, USA
Remember also that this rule for low voltage applies only to the accessible portions of such cables. That does not include cables in raceways, by definition.
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#51056 - 04/20/05 06:04 PM Re: Abandoned runs
highvoltageguy Offline
Member
Registered: 03/03/05
Posts: 53
Loc: Silt, Colorado, USA
anyone know the art.# that says a wire can not be abandoned? I myself when do abandon a wire crimp all the the conductors together (in my area romex)(especially the bare ground)and mark it spare, on both ends. in case some one else down the road decides to hook it back up, with all the conductors tied together should trip a breaker and make who ever do some more investigation. Of course I do agree that removing the abandoned cable is the best choice,and if wires in conduit no problem, but then there's them times!!!!

[This message has been edited by highvoltageguy (edited 04-21-2005).]
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#51057 - 04/20/05 07:32 PM Re: Abandoned runs
pdh Offline
Member
Registered: 01/20/05
Posts: 354
Oh look ... here's some abandoned cable. It's running from one room to the next inside a conduit. It's been snipped off on each end and is connected to nothing.

Q: is this high voltage? low voltage? or no voltage?
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#51058 - 04/20/05 11:02 PM Re: Abandoned runs
gfretwell Offline


Member
Registered: 07/20/04
Posts: 9039
Loc: Estero,Fl,usa
You never abandon wire. You tape it back on itself and label it "spare".
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#51059 - 04/21/05 03:32 AM Re: Abandoned runs
Steve Miller Offline
Member
Registered: 08/30/01
Posts: 325
Loc: Loudoun Cty, VA
I had this discussion with my local inspector about 6 months back. His (our local county's) interpretation was to either cut the wires off where they enter the boxes or cap them off within the boxes. As long as they were not left bare ended for the next guy to accidently hook up they (AHJ) had no problem. It seemed reasonable and fair to me so we capped them and left them.
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