"Allodoxaphobia" wrote in message
...
On Fri, 10 Dec 2004 15:20:50 -0500, Dave VanHorn hath writ:


I'm thinking in terms of a 6" pvc into the attic, some of the cables I
need
to pull thru are nearly an inch in diameter.

Probably a thing that keeps your local fire marshal awake at night.

A vertical, non-fireproof chimney (and that's what 6" PVC is) running
vertical between floors will facilitate the growth of a small fire on
a lower floor into one of catastrophic proportions. Use metal conduit,
and stuff some coarse steel wool into the ends after you have run
the cables. You, you family, and the fire marshal will sleep better.

It's a Real Good Thing to even stuff something like steel wool into
overly large holes used to pass smallish cable through sill plates.

Good point. I have used fiberglass insulation for both minimizing heat loss
and for some firestopping, however you can purchase from many electrical
contractors .. firestopping putty
(it was a red colored putty when I used it 12 years ago)

gb

Good point. I have used fiberglass insulation for both minimizing heat
loss
and for some firestopping, however you can purchase from many electrical
contractors .. firestopping putty
(it was a red colored putty when I used it 12 years ago)

Indeed. Steel wool burns rather nicely, once started.

On Sat, 11 Dec 2004 23:11:11 -0500, Dave VanHorn hath writ:

Good point. I have used fiberglass insulation for both minimizing heat
loss and for some firestopping, however you can purchase from many
electrical contractors .. firestopping putty
(it was a red colored putty when I used it 12 years ago)

Indeed. Steel wool burns rather nicely, once started.

Kewl, I had never heard of firestopping putty. I assume/hope it can
be easily dug out when/if you need to fish new cables. I think I'd
like it, too, for it's draft blockage feature

Jonesy
--
| Marvin L Jones | jonz | W3DHJ | linux
| Gunnison, Colorado | @ | Jonesy | OS/2 __
| 7,703' -- 2,345m | config.com | DM68mn SK

"Allodoxaphobia" wrote in message
...
On Sat, 11 Dec 2004 23:11:11 -0500, Dave VanHorn hath writ:

Kewl, I had never heard of firestopping putty. I assume/hope it can
be easily dug out when/if you need to fish new cables. I think I'd
like it, too, for it's draft blockage feature

Jonesy ---

Absolutely, has become a big problem with independent contractors in many
building (especially hospitals). When I did a major rewire in the early
1990s (to EIA/TIA specifications), I pulled out so much cable and found so
much out of compliance work .. that the engineering department of the
hospital thanked me and the legal counseling firm sent me a big gift for
reduced risk and potential litigation costs.

Fire code comments
http://www.bccresearch.com/chem/DFI95.html

Caulks and putties for joints and penetrations
http://www.na.graceconstruction.com/...=c&did=4&id=96

http://www.rectorseal.com/frstpn2.htm

http://www.all-stateproducts.com/html/firestopping.htm

"Allodoxaphobia" wrote in message
...
On Sat, 11 Dec 2004 23:11:11 -0500, Dave VanHorn hath writ:
Kewl, I had never heard of firestopping putty. I assume/hope it can
be easily dug out when/if you need to fish new cables. I think I'd
like it, too, for it's draft blockage feature

Jonesy


Here is the White Paper from Wiremold
http://www.wiremold.com/www/commerci...ex.asp?wpid=13

On Sat, 11 Dec 2004 23:11:11 -0500, Dave VanHorn hath writ:
Kewl, I had never heard of firestopping putty. I assume/hope it can
be easily dug out when/if you need to fish new cables. I think I'd
like it, too, for it's draft blockage feature

Jonesy

Wasn't me what writ that part.

On Mon, 13 Dec 2004 00:40:23 -0500, Dave VanHorn hath writ:

Wasn't me what writ that part.

sri

Jonesy