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
#39496 - 06/21/04 10:03 PM SO cord proper installation?
Edward Offline
Member
Registered: 12/14/02
Posts: 309
Loc: California
Hello all.
Can i have a SO hard usage cord be droped from a 20foot ceiling with double duplex receptacles to be used as permenant power source for commercial washing machine?

Where is SO cord used as freely hanging from a ceiling? Ofcourse with proper cable grips.

Thank you
Edward
_________________________
Thanks
Edward
Top
Work Gear for Electricians and the Trades
#39497 - 06/22/04 05:30 AM Re: SO cord proper installation?
Big A Offline
Member
Registered: 01/22/03
Posts: 47
Loc: Lynchburg, VA
I would say no. See 400-8 1999NEC
Top
#39498 - 06/22/04 09:12 AM Re: SO cord proper installation?
Joe Tedesco Offline
Member
Registered: 10/07/00
Posts: 3325
Loc: Boston, Massachusetts USA
314.23(H) Pendant Boxes.

An enclosure supported by a pendant shall comply with 314.23(H)(1) or (2).

(1) Flexible Cord. A box shall be supported from a multiconductor cord or cable in an approved manner that protects the conductors against strain, such as a strain-relief connector threaded into a box with a hub.
_________________________
Joe Tedesco, NEC Consultant
Top
#39499 - 06/22/04 09:24 AM Re: SO cord proper installation?
Edward Offline
Member
Registered: 12/14/02
Posts: 309
Loc: California
here is what am planning to do:
A 10-3 SO cord suspended from 20 foot ceiling and be used as a permenat installation.(with proper cord grips and strain relief connectors)

Am I in violation of NEC. I know i can not have the cord attached to the surface of the building.BUt i am suspending it from the ceiling.
Another option i have is to run unistrut from ground up and have a counduit straped to the unistrut.

Thank You
Edward
_________________________
Thanks
Edward
Top
#39500 - 06/22/04 01:22 PM Re: SO cord proper installation?
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
It took advance negotiation with the AHJ, but I have used Appleton STB***SR- or STN***SR-series “basket-grip” liquidtight flexible-metal conduit connectors for (temporary/one-year) vertical-only spans where the bottom ends were non-anchored floor-elevation equipment.

Page 7-8 www.appletonelec.com/pdf/ST-2thru13.pdf [Hubbell and T&B also make ‘em.]

Here’s one consideration for article-400 wiring—in the case of flexible cord for “drop” duty, it is well worth avoiding the pervasive “commodity-grade” type-S** neoprene- or vinyl-jacketed cord. A lot of that stuff has embarrassingly {and litigiously} poor durability—used inside or out.




[This message has been edited by Bjarney (edited 06-22-2004).]
Top
#39501 - 06/23/04 05:34 PM Re: SO cord proper installation?
HotLine1 Offline


Member
Registered: 04/03/02
Posts: 6833
Loc: Brick, NJ USA
Edward:
Flexible cord code compliant uses, and NON-compliant uses are stated in NEC 400.7 (Uses Permitted) and 400.8 (Uses Not Permitted).

Basically, there is not a whole lot that 'cord' can be used for any more. I, and many others have used 'cord' drops as you mentioned, but around '99 the AHJ's started basically what we call "no mo' cord"

And BJ, no we (I) used the 'good stuff', not the economy throw away butched extension cords.

John
_________________________
John
Top
#39502 - 06/23/04 06:35 PM Re: SO cord proper installation?
winnie Offline
Member
Registered: 09/15/03
Posts: 652
Loc: boston, ma
400.7(A)(1) specifically permits 'pendants'.

There is no definition of 'pendant' in article 100, but 210.50(A) states 'A cord connector that is supplied by a permanently connected cord pendant shall be considered a receptacle outlet'

IMHO a 'pendant' receptacle is recognized and permitted by code.

-Jon
Top

Featured:

2017 NEC and Related
2017 NEC
Now Available!

Shout Box

Recent Posts
Forum Styles
by Admin
01/24/17 02:22 PM
License exam
by TRUE POWER
01/23/17 09:16 PM
Looking for older post
by sparkyinak
01/23/17 12:27 AM
Members: Non-Members: Did you know?
by Admin
01/22/17 02:34 PM
Safety at heights?
by HotLine1
01/21/17 08:51 PM

Who's Online
1 registered (Admin), 97 Guests and 14 Spiders online.
Key: Admin, Global Mod, Mod
New in the Gallery:
Desk-mounted "power-board"
Top Posters
gfretwell 9066
Trumpy 8560
pauluk 7693
HotLine1 6833
sparky 5545
Member Spotlight
Member Since: 08/17/06
Posts: 358

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