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#160218 07/08/05 07:04 AM
Joined: Dec 2000
Posts: 4,294
Member
Quote
In a firewall, I have to use rated steel boxes for my electrical work. Doesn't the use of these "data rings" by the low voltage crowd destroy the rating of that firewall?

Renosteinke


[Linked Image]

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#160219 07/08/05 09:21 AM
Joined: Dec 2003
Posts: 886
H
Member
Have to admit even I am guilty of that from time to time. [Linked Image]

I would say yes, a steel box should be used depending on the rating of the wall and the proximity to any other boxes.

-Hal

#160220 07/08/05 10:09 AM
Joined: Jul 2004
Posts: 9,935
Likes: 34
G
Member
When I was doing "Data" we had to respect "penetrations" just like everyone else. The problem is data doesn't usually get permitted/inspected. You will get caught by the life safety inspector, usually as part of an unrelated inspection.
In the case of this picture he would be looking at the exit light and say "that ain't gonna work" when he sees the other hole in his firewall.


Greg Fretwell
#160221 07/18/06 07:38 PM
Joined: Mar 2004
Posts: 16
F
Member
Don't get caught defeating the rating of a firewall. The liability of that is NOT worth it.
Go to Hilti.com, and look under firestop products. There is some good info there.

#160222 07/20/06 03:40 AM
Joined: Oct 2000
Posts: 2,723
Likes: 1
Broom Pusher and
Member
Renosteinke:

Quote

Doesn't the use of these "data rings" by the low voltage crowd destroy the rating of that firewall?

Heck ya, it does!!!

Typical installations in my area (Southern California), for _ANY OUTLETS_ in rated walls / lids, is as follows:\

<OL TYPE=A>

[*] The outlet would be (compatible to) a 4s box, with a 1 (or 2) Gang Ring mounted to it,


[*] The 4s Box would be covered with a "Fire Pad",


[*] The Low Voltage Cabling would enter the box via 3/4" EMT, which extends "Outside" of the rated wall / area.
</OL>

Scott35


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
#160223 07/22/06 07:45 AM
Joined: Oct 2000
Posts: 2,723
Likes: 1
Broom Pusher and
Member
*** BUMP-A-DEE-BUMP ***

Bumping zee Thread up again for discussion-ary purposes!

`El-Scotto35

[Linked Image]


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
#160224 07/22/06 12:09 PM
Joined: Jan 2005
Posts: 5,445
Likes: 3
Cat Servant
Member
Scott, my original intention in posting this pic was two-fold:

I wanted to illistrate the importance of knowing more than just "your" part of the code; and,

I wanted to shame some data guys out there into actually thinking about how they're supposed to do things- as opposed to using all the short-cuts they've been able to get away with, as their work takes place after the inspector has left!

#160225 07/22/06 07:10 PM
Joined: Dec 2003
Posts: 886
H
Member
You are wasting your time. Data guys, better known as computer geeks, have no shame.

-Hal

#160226 07/22/06 08:05 PM
Joined: Jul 2002
Posts: 8,443
Likes: 3
Member
Hal,
Quote
You are wasting your time. Data guys, better known as computer geeks, have no shame.

[Linked Image]

It's only after a fire that these things are picked up by investigators.
Fire-walls aren't put there for the sheer fun of it.
These people should be made an example of. [Linked Image]

#160227 07/22/06 10:43 PM
Joined: Jul 2004
Posts: 9,935
Likes: 34
G
Member
Part of my job was to teach them some shame ... or at least to get the problem fixed and get their boss a bill.


Greg Fretwell
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