ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat Box
Recent Posts
Questioning the electrical norms
by HotLine1 - 03/04/21 12:35 PM
Lock-down Thread
by gfretwell - 03/03/21 12:38 PM
Northern Tool Recalls Powerhorse Generators
by Admin - 02/25/21 09:49 PM
You will never guess
by gfretwell - 02/25/21 07:48 PM
New in the Gallery:
Facebook follies, bad wiring
FPE in Germany pt.2
Who's Online Now
1 registered members (Scott35), 23 guests, and 19 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Nuetral Supported Cables #164394 06/02/07 10:57 AM
Joined: Nov 2005
Posts: 20
Y
YORKIE Offline OP
Member
In the 2006 code book we now have two tables for nuetral supported cable T36 A & T36 B. I have never seen copper neutral supported cable, all the electricians I have asked have never seen it either. Can anyone explain where this is used and why, the way the price of copper is it would seem to be an expensive way to go using copper.
[list]
[*]null

Tools for Electricians:
Re: Nuetral Supported Cables [Re: YORKIE] #164415 06/02/07 06:17 PM
Joined: Jul 2002
Posts: 8,379
Trumpy Offline
Member
Yorkie,
I could be wrong, but it sounds like Neutral-Screened cable.
N/S cable is used here in NZ for overhead services into residential installations.
The neutral conductor in the cable is used as the support for the cable at both ends (as in it is wrapped around an insulator on the pole crossarm and on the house), the only other wire in the cable is the centre core which is the PVC insulated phase wire to supply the house.
I'll see if I can get a pic of a typical install here to show you what I mean.

{Oh and btw, the whole cable is covered in thick black PVC sheathing}
{Edit:}
Here is the neutral screened cable that feeds the house next door, it's the cable that is on the top insulator on the pole:
[Linked Image]

Here is the other (feed) end:

[Linked Image]

Last edited by Trumpy; 06/02/07 06:58 PM. Reason: To add images
Re: Nuetral Supported Cables [Re: YORKIE] #164434 06/03/07 12:40 PM
Joined: Oct 2005
Posts: 29
N
Navyguy Offline
Member
I have seen copper NSC before. It was at an old industrial facility. We we actually doing a demo of the facility and my job was to cut out all the overhead cables that ran between the power plant and the building.

That was many years ago (almost 20) and they were pretty old then I suspect.

Cheers

Re: Nuetral Supported Cables [Re: Navyguy] #164452 06/03/07 07:23 PM
Joined: Oct 2006
Posts: 745
E
EV607797 Offline
Member
I may be confused here...But that wouldn't surprise me.

Are you referring to triplex and quadruplex service drop cable? A bare center neutral (ACSR) having two or three insulated conductors spiraled around it?

I haven't seen that stuff made out of copper since before I was born (1960).


---Ed---

"But the guy at Home Depot said it would work."
Re: Nuetral Supported Cables [Re: EV607797] #164509 06/04/07 07:59 PM
Joined: Nov 2005
Posts: 20
Y
YORKIE Offline OP
Member
Thanks guys, I see I am not the only one who is confused. T36B is for triplex and quadplex,n neutral supported cable with insulated copper conductors. As I said in my original posting no one as seen it or used it so why is it suddenly in the new code book?


Featured:

2020 National Electrical Code
2020 National Electrical
Code (NEC)

* * * * * * *

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

 

Member Spotlight
Samurai
Samurai
Fl.
Posts: 46
Joined: May 2007
Show All Member Profiles 
Top Posters(30 Days)
Popular Topics(Views)
275,741 Are you busy
209,655 Re: Forum
197,002 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.3