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House of Horrors #108037
06/06/04 06:43 AM
06/06/04 06:43 AM
electure  Offline
OP
Member
Joined: Dec 2000
Posts: 4,263
Fullerton, CA USA
Submitted by CT Wireman
He'll explain these


[Linked Image]


[Linked Image]


Take it away, Peter!...S

2017 / 2014 NEC & Related Books and Study Guides
Re: House of Horrors #108038
06/06/04 08:29 AM
06/06/04 08:29 AM
C
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
Pic 1- Romex embedded in 1/2 inch of plaster. After I took down the light, I grabbed the wire, and down it came!!

Pic 2- Well ventilated octagon box. Every knockout removed. The shabby looking wires on the right emerge from disintegrating AC cable. No connectors obviously.


Peter
Re: House of Horrors #108039
06/06/04 08:46 AM
06/06/04 08:46 AM
B
BigJohn  Offline
Member
Joined: Mar 2004
Posts: 391
Boston, MA
Quote
Romex embedded in 1/2 inch of plaster.

I knew an industrial electrician who specialized in that method: Notch drywall to put in some NM-B and then just run a strip of tape and some compound overtop of it.

The H/O sees how easy it is to do, assumes it's code compliant, and suddenly you find that everywhere in the house. [Linked Image]

-John

Re: House of Horrors #108040
06/06/04 08:58 AM
06/06/04 08:58 AM
T
Texas_Ranger  Offline
Member
Joined: Dec 2001
Posts: 2,407
Vienna, Austria
Quote
Romex embedded in 1/2 inch of plaster.


Here in Austria that would be an acceptable wiring method, though no one would do that in a plaster & lathe ceiling since it'd be much easier to fish the wires parallel to the joists. One small hole where the wire enters the ceiling and one at the fixture, viola! Done that many times (though I _always_ used flexible pvc conduit). Removed loads of such wiring from our walls here. Old time geniuses here used THHN instead of NM in order to bury it in plaster! _That_ is scary!

Re: House of Horrors #108041
06/06/04 09:04 AM
06/06/04 09:04 AM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
We are allowed to do that in some instances with the right kind of cable, but we would also need to follow this rule.

Quote
In a shallow chase in masonry, concrete, or adobe protected against nails or screws by a steel plate at least 1.59 mm (1 /16 in.) thick and covered with plaster, adobe, or similar finish


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: House of Horrors #108042
06/06/04 09:05 AM
06/06/04 09:05 AM
C
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
Oh yeah, forgot to mention, what's really dumb about the NM in plaster is there's a wide open attic above that ceiling! [Linked Image]

The NM was going to a 3-prong outlet down on the wall, which was also pretty stupid considering they tapped it from old AC cable and "forgot" to connect the ground wire to anything.

Bob, I don't think this comes even close to meeting any of those rules. I think out West though, where concrete and adobe houses are pretty common, you would see a lot of this.

[This message has been edited by CTwireman (edited 06-06-2004).]


Peter
Re: House of Horrors #108043
06/06/04 11:13 AM
06/06/04 11:13 AM
S
SteveMc  Offline
Member
Joined: Feb 2004
Posts: 62
Rock Hill, SC
No wonder homeowners think it's okay to do this, I saw on one of the home shows the "electrician" running NM under the cove molding around the ceiling for some recessed cans.

Re: House of Horrors #108044
06/06/04 11:35 AM
06/06/04 11:35 AM
I
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
Peter

Quote
Bob, I don't think this comes even close to meeting any of those rules. I think out West though, where concrete and adobe houses are pretty common, you would see a lot of this.


I agree with you 100% I was mostly responding to Texas Ranger. [Linked Image]

Bob


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: House of Horrors #108045
06/06/04 11:38 AM
06/06/04 11:38 AM
Lostazhell  Offline
Member
Joined: Feb 2004
Posts: 1,431
Bakersfield, CA (Originally Or...
CTwireman wrote:

Quote
I think out West though, where concrete and adobe houses are pretty common, you would see a lot of this.


Cant say I've come across this before! (the embedded romex) ! It's amazing how much work someone can put into doing something the wrong way!
Now on the other hand... The open air rated 4/O box is a California homeownered classic [Linked Image]
-Randy

Re: House of Horrors #108046
06/06/04 04:10 PM
06/06/04 04:10 PM
P
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Cable buried directly in the plaster and only a fraction of an inch below the surface is also very common in many old British houses.

To be code-compliant, the cable needs to be protected by channeling.

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