The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Parking lot pole light swap....
by ghost307
Today at 06:25 AM
International Wire Colour Codes
by Tjia1981
Yesterday at 12:08 PM
Son of Sparky
by HotLine1
10/20/16 07:43 PM
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
ghost307 7
HotLine1 7
renosteinke 6
Potseal 4
Who's Online
0 registered (), 290 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#51060 - 04/20/05 09:36 AM Stallcup Question
George Corron Offline

Registered: 05/16/01
Posts: 728
Loc: Lorton, Va USA
Alright, a little help here.
Stallcup has, in one of his books, a question about cable bending in "L" "S", and "Z" configurations.

One of my former students now teaches code, and one of his was recently asked a question about cable bending radius based on the above configurations.

I've only been able to give it a few minutes but danged if I can find ANY code reference to it. I will look in Jim's books tonight, but anyone on this forum got a clue?

Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#51061 - 04/20/05 02:07 PM Re: Stallcup Question
Tom Offline

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
I don't know of any bending radius requirements for an individual conductor. Every cable article (MC, NM, etc) does have a limit on the minimum radius since you wouldn't be able to observe any damage done to the enclosed conducxtors.
Few things are harder to put up with than the annoyance of a good example.

#51062 - 04/20/05 02:12 PM Re: Stallcup Question
Redsy Offline

Registered: 03/28/01
Posts: 2138
Loc: Bucks County PA

Try the commentary in the '02 Handbook on page 297.

#51063 - 04/21/05 09:52 AM Re: Stallcup Question
DougW Offline

Registered: 06/08/03
Posts: 1083
Loc: North Chicago, IL
Of course, I'm at the Fire Station with no Codebook, but IIRC aren't those different methods of routing a cable in a box to support it vertically?

#51064 - 04/21/05 04:33 PM Re: Stallcup Question
George Corron Offline

Registered: 05/16/01
Posts: 728
Loc: Lorton, Va USA
Thanks Redsy,
After looking at it, I really don't think that's it. The old vertical support methods would fit, but the question was specifically about terminations. I'm going to have to look in Jim's old "Designing Electrical Systems" to see if there's a clue in there.

Thanks for your help guys, I'll let you know if I find anything concrete in case you run across it.

#51065 - 04/21/05 08:04 PM Re: Stallcup Question
highkvoltage Offline

Registered: 08/13/04
Posts: 35
Loc: Massillon, Ohio, USA
Flexible Conduit
Chapter 9 Table 2 Column Other bends.

AC Cable 320.24


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals