EMT - UL Heads Up [RE-wrenches]

[Joel Davidson]

Hello Bill,
While you are at it, talk to the County of Los Angeles inspectors. They also
think that UL's watertight requirement for conduit is gospel. (Watertight
conduit and USE cable would be a creative way to wire and plumb a building
with the same pipe.)
Best regards,
Joel Davidson

----- Original Message ----- 
From: "Bill Brooks" <billb at endecon.com>
To: <RE-wrenches at topica.com>
Sent: Monday, March 15, 2004 4:14 PM
Subject: RE: EMT - UL Heads Up [RE-wrenches]


> Mo and William,
>
> I would take anything that a Carlon representative said with a grain of
> salt. They are in the business of saying that their product is as good or
> better than EMT. Show me an unbiased engineering study done on the two and
> we'll talk. Waterfront environments aside, most of California has
extremely
> low corrosion rates, and I would put my bets on EMT any day. Water
tightness
> is a hoax that I hope UL and others get away from. Water lives in outdoor
> conduit systems regardless of their composition. That is why all
conductors
> must be wet rated.
>
> I'll be seeing the San Diego inspectors at their annual meeting in a few
> weeks, and I'll ask them about this issue. It doesn't make a lot of sense
to
> me. I believe that outdoor boxes and wiring systems need drains to allow
> water to escape. Putting a better watertight fitting on a conduit is going
> the wrong way in my book.
>
> Bill.
>
> -----Original Message-----
> From: Mo Rousso [mailto:mrousso at heliopower.com]
> Sent: Monday, March 15, 2004 3:31 PM
> To: RE-wrenches at topica.com
> Subject: Re: EMT - UL Heads Up [RE-wrenches]
>
>
>
> >
> > Following up on the PVC issue:  I spoke to a representative from Carlon
> > some time ago about UV resistance.  Apparently it doesn't say that on
the
> > pipe for no reason.  Any UV discoloration of PVC is only a few microns
> > thick.  It does not compromise the structural integrity of the product
in
> > any way.  I'd actually like to have PVC on my roof for 20 years over EMT
> > (especially in any marine proximity).  Remember, beauty is only skin
deep,
> > but rust can go all the way through!
> >
>
> That's good to know about the PVC.  And I agree with the rust issue.  I
> guess time will tell if PVC is a superior solution since we have put in
> quite a number of these since the rule change.
> --
> Mo Rousso
> President
> HelioPower, Inc
> 760.451.9374
> www.heliopower.com
>
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