ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Violation?
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
AFDD's coming to the UK
by Texas_Ranger - 01/17/23 07:22 PM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 19 guests, and 12 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#11806 07/23/02 03:02 PM
Joined: Jan 2002
Posts: 54
M
Member
This is for all the inspector members and anyone from U.L. I just inspected a satalite installation on a high rise were the cable was dropped down 13 stories in a riser. The cable is marked CL2P and CATV. I cannot find in article 820-53 were CL2P is the same as CATVP. Can anyone help me out with this?

#11807 07/23/02 06:13 PM
Joined: Jul 2002
Posts: 4
D
Junior Member
Shouldn't the cable be marked as a riser "R" rather than a plenum "P"?
The listings aren't the same unless marked as dual purpose.
N.E.C. also specifically prohibits type CATV as riser or plenum cable [820-51 (c)].

#11808 07/23/02 07:53 PM
Joined: Apr 2002
Posts: 197
G
Gwz Offline
Member
300.19 is not mentioned in 820.

Should vertical support be considered for 13 floors?

Glenn

#11809 07/25/02 01:34 AM
Joined: Oct 2000
Posts: 2,722
Broom Pusher and
Member
Just looking at figure 725-61 [cable substitution hierarchy] from 1996 NEC article 725-61, it says CL2P may be sub'ed for CL2R, and CL2R is listed for use in vertical riser runs penetrating more than one floor.
It also directs from the MPP / CMP box to the CL2P box, which flows out to the CL2R stuff, which is covered in the MPR / CMR section.

Looking at table 820-53 [96 NEC] the permitted sub's for Cable Type CATV include CMP and CMR.

FYI, the "2" in the listing is designating it for use as Class 2 cable

Scott S.E.T.


Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!
#11810 07/25/02 04:06 PM
Joined: Jul 2002
Posts: 4
D
Junior Member
Well, Mountainman, looks like they've put the wrong cable downhole.
Hope they come up with a satifactory resolution for you. (Which in my opinion is "Sorry, but it has to be replaced. And it probably should have support wedges on the top, 5th and 9th floors too. Let's check the data sheet from the mfgr." Thanks gwz).
As an aside, which code was the building constructed to? I presumed the 99 when I posted my first reply.


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
 
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Member Spotlight
Tom
Tom
Shinnston, WV USA
Posts: 1,044
Joined: January 2001
Top Posters(30 Days)
BigB 4
Popular Topics(Views)
302,838 Are you busy
232,019 Re: Forum
216,749 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5