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#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
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Edward

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#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

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#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.
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Joe Tedesco, NEC Consultant

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#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
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Edward

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#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 ‚Äúbasket-grip‚ÄĚ 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 ‚Äėem.]

Here‚Äôs one consideration for article-400 wiring‚ÄĒin the case of flexible cord for ‚Äúdrop‚ÄĚ duty, it is well worth avoiding the pervasive ‚Äúcommodity-grade‚ÄĚ type-S** neoprene- or vinyl-jacketed cord. A lot of that stuff has embarrassingly {and litigiously} poor durability‚ÄĒused inside or out.




[This message has been edited by Bjarney (edited 06-22-2004).]

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#39501 - 06/23/04 05:34 PM Re: SO cord proper installation?
HotLine1 Offline

Member

Registered: 04/03/02
Posts: 6805
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
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John

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#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

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