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#81432 08/17/02 09:07 AM
Joined: Apr 2002
Posts: 197
G
Gwz Offline OP
Member
What is the exact definition of Cable?

Some mentions of Cable;
Chapter 9 Table 1 notes (5) and (9).

325-1 - Type IGS cable is a factory assembly of one or more conductors, - - -.

328-2 - type FCC cable consists of 3 or more - - -.

330-1 - Type MI - - - cable is a factory assembly of one ore more conductors - - -.

334-1 - Type MC cable is a factory assembly of one or more insulated circuit conductors - - -.

336-2 - Nonmetallic sheathed cable is a factory assembly of two or more insulated conductors - - -.

370-17(b) - -. Where raceway or cable - - -.

370-17(c) - - . In all instances, all permitted wiring methods shall be secured to the boxes.

373-5(c) Cables. Where cable is used, each cable shall be secured to the cabinet, cutout box, or meter socket enclosure.

Point of interest: Why shouldn't all conductor(s) , 1/C or more, be secured to enclosures?

Seen many installations where the GEC is installed through the "WEEP" hole of an enclosure with out being secured to the enclosure.

Is that WEEP hole to be used for another purpose ?

Glenn

2017 / 2014 NEC & Related Books and Study Guides
#81433 08/17/02 09:41 AM
Joined: Oct 2000
Posts: 2,749
Member
Cable. A factory assembly of two or more conductors having an overall covering.

See 800.2, this is the only definition for the term cable that I could find in the entire selection of the NFC via the NFPA Glossary.


Joe Tedesco, NEC Consultant
#81434 08/17/02 10:04 AM
Joined: Nov 2000
Posts: 2,236
Member
So, uh, triplex cable, uh "isn't".


-Virgil
Residential/Commercial Inspector
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Member IAEI
#81435 08/17/02 10:22 AM
Joined: Mar 2001
Posts: 345
T
Member
Cable is any assembly of one or more conductors that is suitable for use without aditional physical protection. Single conductor underground feeder cable is installed by the thousands of feet weekly. The definitions in article 800 are only intended to apply to that article.
--
Tom


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison
#81436 08/17/02 10:55 AM
Joined: Oct 2000
Posts: 2,749
Member
tdhorne:

Please provide us with a specific reference that can be found in the 2002 NEC for your definition.

You are correct, the Article 800 definition is for that article only, see 90.3

We really have to be careful when posting information here, because there are many who may rely on this information, even though it is not an official interpretation.

I would like to see the people who post messages here add the edition of the National Electrical Code that they are using.


Joe Tedesco, NEC Consultant
#81437 08/17/02 06:50 PM
Joined: Oct 2000
Posts: 2,749
Member
396.2 Definition.
Messenger Supported Wiring. An exposed wiring support system using a messenger wire to support insulated conductors by any one of the following:

(1) A messenger with rings and saddles for conductor support

(2) A messenger with a field-installed lashing material for conductor support

(3) Factory-assembled aerial cable

(4) Multiplex cables utilizing a bare conductor, factory assembled and twisted with one or more insulated conductors, such as duplex, triplex, or quadruplex type of construction


Joe Tedesco, NEC Consultant
#81438 09/07/02 07:05 PM
Joined: Mar 2001
Posts: 345
T
Member
Joe Tedesco Wrote:

Quote
tdhorne:

Please provide us with a specific reference that can be found in the 2002 NEC for your definition.

You are correct, the Article 800 definition is for that article only, see 90.3

We really have to be careful when posting information here, because there are many who may rely on this information, even though it is not an official interpretation.

I would like to see the people who post messages here add the edition of the National Electrical Code that they are using.

Joe
I did not mean to assert that mine was an NEC definition but that does not mean that the one I offered is without merit. I was drawing from the multiple times that the NEC uses the phrase one or more conductors that is obviously based on whether that particular cable type is available in a single conductor version. If you have an authoritative description that contradicts this it would be useful if you would share it.
--
Tom


Tom Horne

"This alternating current stuff is just a fad. It is much too dangerous for general use" Thomas Alva Edison
#81439 09/07/02 07:38 PM
Joined: Oct 2000
Posts: 2,749
Member
Glenn and Tom:

110.3(B) could be considered, and when I searched the Southwire Glossary this is what came up when I searched for the term Cable. See the Scope statement in Article 100 as well.

Cable: A term generally applied to the larger sizes of bare or weatherproofed (covered) and insulated conductors, also applied to describe a number of insulated conductors twisted or grouped together.

As far as the question concerning the "weep hole" it is to be used for that purpose only. The 2002 NEC revision in 110.12(A) and the NECH Commentary make that clear.


Joe Tedesco, NEC Consultant
#81440 09/07/02 10:45 PM
Joined: May 2001
Posts: 717
G
Member
UL states that triplex and quadruplex are only investigated as single conductors only, they have NOT, nor have they been, investigated as an assembly.

The info is on the UL website. It is also on my computer at work, if anyone cannot find the reference, and needs it for some reason, let me know and I'll post it early Monday morning.


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