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Conductor marking? #74573 01/27/07 12:37 PM
Joined: Jan 2007
Posts: 12
G
guschash Offline OP
Member
What does the markings U and R stand for in Type SE Style U and Type SE Style R. in 310.14

Work Gear for Electricians and the Trades
Re: Conductor marking? #74574 01/27/07 12:45 PM
Joined: Jan 2003
Posts: 4,391
I
iwire Offline
Moderator
I have no doubt 'R' stands for round.

I had always believed the 'U' meant flat as all SEU I have seen is flat.

However I have been shown that the 'U' stands for un-armored.

At one point typical SE cable was armored.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
Re: Conductor marking? #74575 01/27/07 03:46 PM
Joined: Jan 2007
Posts: 12
G
guschash Offline OP
Member
Ok, Thank you. I looked in the American Electricians Handbook,I couldn't find it I was sure it would be in there and it probably is but I didn't find it.

Re: Conductor marking? #74576 01/27/07 05:40 PM
Joined: Mar 2004
Posts: 391
B
BigJohn Offline
Member
Both Southwire and Encore Wire agree with Iwire. That's a lot of wires. [Linked Image] Has anyone ever actually seen armored service cable?

-John

[This message has been edited by BigJohn (edited 01-27-2007).]

Re: Conductor marking? #74577 01/28/07 04:05 AM
Joined: Feb 2004
Posts: 1,437
Lostazhell Offline
Member
so does AIW and Cerro Wire

Quote
SEU
Service Entrance Cable (type SE, style U). (Unarmored).

SER
Service round entrance cable (Type SE, Style R).

from Cerro Wire


[This message has been edited by Lostazhell (edited 01-28-2007).]

Re: Conductor marking? #74578 01/28/07 07:26 AM
Joined: Jan 2007
Posts: 12
G
guschash Offline OP
Member
Thanks Lastazhell, After reading what it says under " U ", I am leaning towards " U " having to do with the way wire is layer in the cable.

Re: Conductor marking? #74579 01/28/07 07:52 PM
Joined: Mar 2001
Posts: 2,056
R
Redsy Offline
Member
...Has anyone ever actually seen armored service cable?...

Several years ago I sent in a picture of some ASE.

I don't know what happened to the picture, but it looks like standard SEU with a flat metal tape wrapped underneath the jacket.


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