ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Recent Posts
VFD MotorFeeders
by gfretwell. 10/17/17 10:01 PM
What do you do?
by gfretwell. 10/17/17 01:08 AM
Good ol' copper pipe in the fuse holder trick
by HotLine1. 10/16/17 07:16 PM
Generator Cable Sizing
by HotLine1. 10/16/17 07:13 PM
Another generator question
by HotLine1. 10/16/17 07:02 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
241,374 Are you busy
177,327 Re: Forum
168,951 Need opinion
Who's Online Now
0 registered members (), 58 guests, and 9 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#182128 - 11/19/08 01:14 AM NEC 2002/ 2005 question on Motors  
sokoservices  Offline
Member
Joined: Jan 2008
Posts: 22
Virginia
Hello all.
Please help me pass my exam.
One question that I cant seem to find is:
" What is the maximum distance for flexible cord feeding a motor?"


Please help!

thank you



2017 / 2014 NEC & Related Books and Study Guides

#182130 - 11/19/08 02:02 AM Re: NEC 2002/ 2005 question on Motors [Re: sokoservices]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,122
Estero,Fl,usa
680.21(A)(5) says pool pumps, cord and plug connected can only have a 3' cord.


Greg Fretwell

#182131 - 11/19/08 02:47 AM Re: NEC 2002/ 2005 question on Motors [Re: gfretwell]  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
422.16(B)(2).
422.16(B)(2)(2)
422.16(B)(4)(2)
430.42(C)
680.7(A)
680.21(A)(5)

Heres a few, check them out and you decide the common denominator.

Some think I'm nuts...But I enjoy danceing around the book.
(Thats not why they think I'm nuts though)

When looking for an answer: Focus on the "key" word. Here Flex. cord...422.16. Next "MOTOR" Start at 430 then move from there. You'll be surprised!!!

Best of luck!!!!

Last edited by leland; 11/19/08 02:51 AM.

#182137 - 11/19/08 05:27 AM Re: NEC 2002/ 2005 question on Motors [Re: leland]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,122
Estero,Fl,usa
It is really a bad question.
I guess the real answer they are looking for would depend on what the options they give you on the test.
So far we have found 36" (pools), Between 3' and 4' (dishwashers) and 18" (disposals & range hoods).

I picked on 680.22 because that is the only article that specifically says "motors" and lists a length.
Appliances may have motors in them but that is not the way the article is worded.



Greg Fretwell

#182140 - 11/19/08 08:49 AM Re: NEC 2002/ 2005 question on Motors [Re: gfretwell]  
sokoservices  Offline
Member
Joined: Jan 2008
Posts: 22
Virginia
The answer that they want me to use it 6'. I am not sure where they would have gotten that answer. I am still looking.


Virginia Journeyman Eletrician
NFPA-70E Trained
CFC Universal Certified

#182145 - 11/19/08 02:21 PM Re: NEC 2002/ 2005 question on Motors [Re: sokoservices]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,122
Estero,Fl,usa
That sounds more like the rule for spiral armor wiring methods ref grounding ... unless you are in Chicago.


Greg Fretwell

#182287 - 11/23/08 02:34 PM Re: NEC 2002/ 2005 question on Motors [Re: gfretwell]  
leland  Offline
Member
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
Not to 2nd guess..But do they specifically ask "cord"?
6' seems to be more of a "flex" issue,greenfield etc. In wich case 6' jumps out, GEC in any piece longer than 6' etc..
I can't find 6' anywhere associated with "cord connected.."


#182410 - 11/25/08 05:52 PM Re: NEC 2002/ 2005 question on Motors [Re: leland]  
sokoservices  Offline
Member
Joined: Jan 2008
Posts: 22
Virginia
The question says CORD but i am with you all i can find is the section about the 6' flex cable (greenfield/ mc)


Virginia Journeyman Eletrician
NFPA-70E Trained
CFC Universal Certified

#182459 - 11/27/08 04:26 PM Re: NEC 2002/ 2005 question on Motors [Re: sokoservices]  
Yoopersup  Offline
Member
Joined: Mar 2003
Posts: 830
Michigan
Any one look at Busways Article (368)>
Industrial 368.56(B)2
You can go a lot longer then 6 ft. The ist support is required within 6 ft .
2005Handbook page 407 shows a good example.

Also see 400.14 (50ft)



Member Spotlight
mxslick
mxslick
Atomic City, ID USA
Posts: 803
Joined: October 2004
Show All Member Profiles 
Featured:

2017 Master Electrician Exam Preparation Combos
2017 NEC Electrician
Exam Prep Combos:
Master / Journeyman

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.025s Queries: 15 (0.005s) Memory: 0.8029 MB (Peak: 0.9760 MB) Zlib enabled. Server Time: 2017-10-18 18:31:23 UTC