ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
twh 10
Admin 4
Recent Posts
Correct rotation, wrong sequence
by Potseal. 05/25/17 11:34 PM
Dryer, Range grounding from "Main" panel
by sparkync. 05/25/17 05:49 PM
210.70 / Wall Switch / When adopted?
by gfretwell. 05/24/17 09:18 PM
Any UL 508 experts out there?
by sparkyinak. 05/23/17 11:04 PM
Heat pump conundrum
by sparkyinak. 05/21/17 08:49 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
236,828 Are you busy
171,846 Re: Forum
164,750 Need opinion
Who's Online Now
0 registered members (), 67 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#25433 - 05/08/03 02:12 PM thru-wall penetrations  
Elzappr  Offline
Member
Joined: Dec 2001
Posts: 270
Oregon
Anyone know a source of info that illustrates the do's and don'ts for making conduit sleeve-type penetrations in fire walls? I'm particularly interested in finding out how long a sleeve has to be when it sticks out of the sheetrock. Different inspectors in different lacalities have come up with different interpretations and I don't know what to think anymore. I have seen specifications for conduit sleeves that require a minimum of 1" and maximum of 2" sticking out from the surface, and I have run into inspectors that require 18" sticking out. Is this just a local issue, or is there some national standard that is unevenly enforced, or inadequately understood?


Work Gear for Electricians and the Trades

#25434 - 05/09/03 08:32 AM Re: thru-wall penetrations  
mountainman  Offline
Member
Joined: Jan 2002
Posts: 54
Richmond Va. U.S.A.
Get in touch with UL, and order Fire Resistance Volumes 2A & 2B, they list all through wall and floor penetrations.



Member Spotlight
lil suzi
lil suzi
Midwest
Posts: 57
Joined: August 2003
Show All Member Profiles 
Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.009s Queries: 14 (0.002s) Memory: 0.7429 MB (Peak: 0.8576 MB) Zlib enabled. Server Time: 2017-05-26 20:42:35 UTC