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Discussion Starter #1 (Edited by Moderator)
Since someone will as the obvious question of: "why", customer recently remodeled their house. They now want heated floors in the kitchen. The AC condenser was right by the kitchen and the tubing from near the panel to the kitchen wall is now abandoned. Obviously if we could snake wire through that tubing, we could save the customer a lot of money and drywall repairs.


This was the GC's Idea. At first I thought "no way", but why not?
 

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If you can get the appropriate size romex thru I don't see any reason not to. I wouldn't pull individual wires in it since obviously not a listed conduit but otherwise I don't see any difference in that than any other chase or whatever you fish wire thru.. use uf cable if it goes under a slab obviously also..
 

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Since someone will as the obvious question of: "why", customer recently remodeled their house. They now want heated floors in the kitchen. The AC condenser was right by the kitchen and the tubing from near the panel to the kitchen wall is now abandoned. Obviously if we could snake wire through that tubing, we could save the customer a lot of money and drywall repairs.


This was the GC's Idea. At first I thought "no ", but why not?
The copper has to be rated as a raceway.

110.3 Examination, Identification, Installation, and Use of Equipment.
(A) Examination. In judging equipment, considerations such as the following shall be evaluated:
(1) 
Suitability for installation and use in conformity with the provisions of this Code
Informational Note:  Suitability of equipment use may be identified by a description marked on or provided with a product to identify the suitability of the product for a specific purpose, environment, or application. Special conditions of use or other limitations and other pertinent information may be marked on the equipment, included in the product instructions, or included in the appropriate listing and labeling information. Suitability of equipment may be evidenced by listing or labeling.
(2) 
Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided
(3) 
Wire-bending and connection space
(4) 
Electrical insulation
(5) 
Heating effects under normal conditions of use and also under abnormal conditions likely to arise in service
(6) 
Arcing effects
(7) 
Classification by type, size, voltage, current capacity, and specific use
(8) 
Other factors that contribute to the practical safeguarding of persons using or likely to come in contact with the equipment
(B) Installation and Use. Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling.
 

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The copper has to be rated as a raceway.

110.3 Examination, Identification, Installation, and Use of Equipment.
(A) Examination. In judging equipment, considerations such as the following shall be evaluated:
(1) 
Suitability for installation and use in conformity with the provisions of this Code
Informational Note:  Suitability of equipment use may be identified by a description marked on or provided with a product to identify the suitability of the product for a specific purpose, environment, or application. Special conditions of use or other limitations and other pertinent information may be marked on the equipment, included in the product instructions, or included in the appropriate listing and labeling information. Suitability of equipment may be evidenced by listing or labeling.
(2) 
Mechanical strength and durability, including, for parts designed to enclose and protect other equipment, the adequacy of the protection thus provided
(3) 
Wire-bending and connection space
(4) 
Electrical insulation
(5) 
Heating effects under normal conditions of use and also under abnormal conditions likely to arise in service
(6) 
Arcing effects
(7) 
Classification by type, size, voltage, current capacity, and specific use
(8) 
Other factors that contribute to the practical safeguarding of persons using or likely to come in contact with the equipment
(B) Installation and Use. Listed or labeled equipment shall be installed and used in accordance with any instructions included in the listing or labeling.
Why does it need to be a raceway? If you're pulling a listed cable assembly thru it how is it any different than drilling a really long hole and pulling a cable in it?
 

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Why does it need to be a raceway? If you're pulling a listed cable assembly thru it how is it any different than drilling a really long hole and pulling a cable in it?
I think that if it's bonded on both ends it should be fine.

I think it should be approved as a raceway so we can make the helper pull wires through elbows.....:laughing:
 

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I think that if it's bonded on both ends it should be fine.

I think it should be approved as a raceway so we can make the helper pull wires through elbows.....:laughing:
i kinda thought you were against this,harry, but i dont see anything in the code you quoted that says you cant. and im guessing now youre seing it that way too?:thumbup:
 

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Who cares if it's approved or not?

Does your common sense as an electrician suggest anything about this being hazardous?

Doubt it.
 

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Could someone give me the NEC definition of a sleeve?:001_huh:
Article 1000....:whistling2:
sleeve
slēv/
noun
1.
the part of a garment that wholly or partly covers a person's arm.
"a shirt with the sleeves rolled up"
:laughing:
 

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Who cares if it's approved or not?

Does your common sense as an electrician suggest anything about this being hazardous?.
Actually it could be a potentially dangerous installation. Tubing could become energized, the coolant that used to run in the tubing could have some remaining residue inside and could degrade the insulation on the romex or wire installed. Part of being an electrician is figuring out how to do it right and sometimes doing it the right way isn't necessarily the easiest way.
 

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Actually it could be a potentially dangerous installation. Tubing could become energized, the coolant that used to run in the tubing could have some remaining residue inside and could degrade the insulation on the romex or wire installed. Part of being an electrician is figuring out how to do it right and sometimes doing it the right way isn't necessarily the easiest way.
If it's grounded it'll trip the breaker in 10 years, hell make that 50 or 100 years.
 
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