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Posted by SQLit on July 19, 2005, 12:27 pm
wrote:
> >
> >> I want to run two lines from my basement to a second-floor bedroom. One
> >> will be 12-2 non-metallic cable, the other cat 5 wire for an internet
> >> connection. For part of the run, the wires will run along the outside
> >> wall of the house. The run will be 10 feet horizontal, a 90-degree
> >> turn, another 10 feet horizontal, a 90 degree turn, 10 feet vertical. I
> >> want to enclose the wires...my question is, can I use pvc pipe? Or must
> >> I use emt? and what size would be appropriate. Thanks!
>
> PVC electrical conduit. Half-inch trade size meets Code, but it'll be a
bitch
> pulling the Romex cable through. Go bigger: 3/4" or 1". There's not much
cost
> difference, and you'll be glad you did.
>
> You need a separate conduit for the CAT5 cable. 1/2" will be fine there.
> >
> >PVC can be used outside when not subject to physical damage AND rated for
> >the installation.
> >I am not aware of any PVC that is rated to be exposed to the sun.
>
> PVC electrical conduit is. PVC water pipe is not.
>
> >You do know that the cat 5 cable needs to have a 300 volt rated
insulation
> >to be run in the same conduit.
>
> You misspelled "can't be run in the same conduit".
> >
> >The insulation on romex/ non-metallic cable is not rated for running in
> >conduit.
>
> False. Why you continue to say this, after your error has been pointed
out to
> you many times, is a mystery to me. There is *nothing* in the NEC that
> prohibits use of NM cable in conduit.
---------------------------snipped
Nonmetallic-Sheathed Cables
UL 719
1 Scope
1.1 These requirements cover nonmetallic-sheathed cables containing 2 - 4
thermoplastic-insulated circuit conductors with or without a grounding
conductor in the constructions indicated in Table 1.1. These cables are
intended for use in accordance with Article 334 and other applicable parts
of the National Electrical Code (NEC) , ANSI/NFPA 70. Type NMC cable is for
use in dry, moist, damp, and corrosive locations, and Type NM cable is for
use in normally dry locations. Both types carry the suffix letter "-B" to
designate the use of conductors with 90°C insulation.
The best part of the United States is the ability to speak your mind. Even
if you have a dissenting opinion.
Reading Article 334 I will concede that there is nothing that says NM, NMC,
or NMS and not be run in conduit. There are several references to dry,
moist , damp and other locations. There is nothing that says it can be
installed in a wet location. I consider outside a wet location.
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