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#210624 - 07/14/13 01:38 PM Conduit fil
Sparkologist Offline
New Member

Registered: 04/12/12
Posts: 7
Loc: Toronto ,Ontario, Canada
When referring to with jacket or without jacket, is this bare copper or with insulation for the purpose of the number of conductors in a trade sized conduit?

2014 / 2011 NEC & Related Books and Study Guides
#210626 - 07/14/13 02:45 PM Re: Conduit fil [Re: Sparkologist]
twh Offline

Registered: 03/11/04
Posts: 895
Loc: Regina, Sask.
USEI conductors are jacketed. Single conductor wire used to have a cloth jacket.

On a similar topic, Table 6 is for stranded conductors. Solid conductors are a little smaller but you can always use Table 6. It's the worst-case measurement.

When you need to push it, you can use the manufacturers measurements and when you really need to push it, you can measure the wire and the conduit.

Here are some tables using the manufacturer's specs:

#210918 - 08/22/13 10:30 PM Re: Conduit fil [Re: Sparkologist]
homerjones Offline

Registered: 12/08/07
Posts: 34
Loc: 0nt.
i'll go one better. have'nt you heard the question, how many wires can you pull into a conduit? answer is, how big is the gorilla on the fishtape. had to throw that one out there.

#210944 - 08/27/13 11:10 AM Re: Conduit fil [Re: Sparkologist]
mikesh Offline

Registered: 06/07/06
Posts: 614
Loc: Victoria, BC, Canada
Jacket is another coating not related to insulation. Loomex has 2 insulated conductors, a bare bond wire and all enclosed in a jacket of plastic. Once it was woven cloth.
Some single conductor cables are jacketed and insulated. I have seen these used for street lighting. The jacket permits direct earth burial.


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