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

Topic Options
Rate This Topic
#151879 - 05/15/03 11:27 AM Conduit Bending in 1928
Webmaster Offline


Registered: 10/07/00
Posts: 3142
Loc: NY, USA

Thanks to Joe Goble! (aka mountainman)

Super Rod Cable Installation Tools

Super Rod Cable Rod System
Super Rod Cable Rod System -
Best Product of the Last 50 Years by members of NICEIC

#151880 - 05/15/03 11:37 AM Re: Conduit Bending in 1928
Bjarney Offline

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
The article's unstated safety principles are commendable—necktie ends stuffed into shirt. Aaagh!

#151881 - 05/15/03 11:43 AM Re: Conduit Bending in 1928
Bill Addiss Offline

Registered: 10/07/00
Posts: 4196
Loc: NY, USA
That's why I always wear Bow-Ties when I'm doing a Conduit Job!


#151882 - 05/15/03 01:14 PM Re: Conduit Bending in 1928
iwire Offline

Registered: 01/05/03
Posts: 4343
Loc: North Attleboro, MA USA
Is there another page that shows how to pull wire through the four bend 360 degree saddle?

Tough for us with THHN try it with cloth covered.
Bob Badger
Construction & Maintenance Electrician

#151883 - 05/15/03 05:01 PM Re: Conduit Bending in 1928
John Steinke Offline

Registered: 04/03/01
Posts: 509
Loc: Reno,Nv., USA
Yet another reason why Mr. Benfield should get a Nobel Prize.
Also- anyone know when the 360 degree rule first entered the code?

#151884 - 05/16/03 03:36 AM Re: Conduit Bending in 1928
ThinkGood Offline

Registered: 08/07/02
Posts: 1084
Loc: Milwaukee, WI
360°? Try pulling through those figure-8s!

#151885 - 05/16/03 07:22 AM Re: Conduit Bending in 1928
Creighton Offline

Registered: 01/06/02
Posts: 56
Loc: Hayward, CA
John S. :A 360 degree limit appeared in the Aug. 31, 1897 Rules of the Underwriters Association of the Middle Department, which predated the National Electrical Code. No record that I know of as to how they arrived at the four ninety limit. If anybody knows, I wouldl be interested. Creighton.

#151886 - 05/16/03 10:12 AM Re: Conduit Bending in 1928
George Corron Offline

Registered: 05/16/01
Posts: 728
Loc: Lorton, Va USA
When I came into the trade....... uh, musta been 3-4 years ago the old geezers used to slap me up side the head for asking that question.

Sidewall bearing pressure aside, the "instruction" I received was that it had nothing to do with how hard we had to pull, it had to do with manufacturing a coil, and what that would do to our systems. I think it's probably a bit of both nowadays, but both do have their valid arguments.


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