At 05:20 AM 3/16/05, you wrote:
>At 08:02 PM 3/15/2005 -0500, you wrote:
> >Then, there's convincing your in-house electrician that it
> >DOESN"T need to be in conduit... ;-)
> >Good Luck.
>
>Plenum fire rated cable should be used.
>
>Joe
That was the story. Years ago DB made a big batch of cable
for an install in multiple tall buildings in downtown L.A. If you
looked up the part number in the catalog it stated that it was
plenum rated cable but because the physical cable didn't have
the word "plenum" painted on the side next to the part number
every few feet then it obviously wasn't plenum rated.
This objection was made AFTER it was hung in a 30-plus story
building, tested (swept), and placed in use.
I do not know the rest of the story... it may have had to be
replaced, or it may have been accepted in place. The story
did include the fact that multiple phone calls and faxes (including
statements of compliance) went back and forth and that the DB
folks offered to send someone out, swing them from a bosun's
chair in the elevator shaft, and stencil "Plenum" on the cable every
three feet.
Multiple folks were supposed to have made comments that
the stubborn inspector (other less polite words were used)
could read what wasn't on the cable, but could not read the
words "plenum rated" in the DB catalog.
The point is, do your planning such that everybody
is satisfied in advance.
Mike WA6ILQ
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