ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Video: Inventor of the GFCI self-testing shocks
by Bill Addiss. 01/17/18 11:11 PM
FPE in Germany
by HotLine1. 01/17/18 07:07 PM
VDE 0100 to introduce AFCIs
by LongRunner. 01/17/18 10:32 AM
Fujifilm Recalls Power Adapter Wall Plugs
by Admin. 01/16/18 07:04 PM
Air Compressor feeder conductor sizing
by Potseal. 01/15/18 09:08 PM
New in the Gallery:
Housebilding DIY wiring
SE cable question
Who's Online Now
0 registered members (), 14 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Page 1 of 2 1 2
Romax for Pools #84794
05/06/03 09:05 PM
05/06/03 09:05 PM
D
DJF  Offline OP
Member
Joined: May 2003
Posts: 17
This has probably been asked before, but I need a definitive answer:
Per 1999 NEC (and 2002) am I allowed to use NMC in a Single Family building to feed a Pool Motor or a Hot Tub that is located outside the building. The NMC will run to an interior Junction Box where the wiring method will transition into RNC (PVC)-and-THHN to the exterior.
For clarification: the Pool Motor has a Single Pole Switch as the Disconnecting (plus GFCI protection and a Twist-Lock Cord & Plug), and the Disconnecting Means for the Hot Tub will be a 50-Amp GFCI Breaker in a Rain-Tight Enclosure.

2017 / 2014 NEC & Related Books and Study Guides
Re: Romax for Pools #84795
05/07/03 05:28 AM
05/07/03 05:28 AM
S
sparky  Offline
Member
Joined: Oct 2000
Posts: 5,342
from the hip..i believe the code crux will be the 'insulated' grounding conductor here.

[This message has been edited by sparky (edited 05-07-2003).]

Re: Romax for Pools #84796
05/07/03 09:55 AM
05/07/03 09:55 AM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
see 680.21(4) and 680.42 (in 2002 NEC)
Be aware that local codes may differ.

[This message has been edited by Bill Addiss (edited 05-07-2003).]

Re: Romax for Pools #84797
05/07/03 01:25 PM
05/07/03 01:25 PM
D
dana1028  Offline
Member
Joined: Jan 2002
Posts: 163
San Carlos, CA
(1999) 680-25(c) - Methods of Grounding Motors

3rd paragraph - "in the interior of a one-family dwelling...any of the wiring methods recognized in Chap. 3 that contain a copper EGC that is insulated or covered by the outer sheath [read NM]...shall be permitted"

2002 says the same [simpler language].

Re: Romax for Pools #84798
05/07/03 06:35 PM
05/07/03 06:35 PM
D
DJF  Offline OP
Member
Joined: May 2003
Posts: 17
Thanks for answers so far BUT: I believe the intent of the NEC is to allow NMC in the Interior of a Single Family Building but why is it in the Pool Motor section and not for ALL Pool associated equipment? Or does it mean for MOTORS that are in the interior since it is only in the Motor Section?? And SOARS says “Note that this wiring method does not apply to the supply of spas and hot tubs that are located outdoors.” And the IAEI 1-&-2 Family book says: “….does not apply to branch circuits for spas and hot tubs. The electrical equipment that service spas and hot tubs commonly includes panelboards, control panels, motors and heaters.”
Just some thoughts I get aimed at me. Any help will be appreciated.

Re: Romax for Pools #84799
05/07/03 06:48 PM
05/07/03 06:48 PM
E
Electricmanscott  Offline
Member
Joined: Jan 2002
Posts: 1,457
Holden, MA USA
Answer to first question, yes.

Re: Romax for Pools #84800
05/07/03 07:29 PM
05/07/03 07:29 PM
H
harold endean  Offline
Member
Joined: Feb 2002
Posts: 2,233
Boonton, NJ
Bill,

I agree with you that if a MOTOR was wired, then NMC wire inside of a house would be OK as per, 680-25(c). However if there is a pool light or a sub panel, then 680-24(4)b) and 680-24(d) would not allow it. Then the pipe would have to be run inside of the house.

Re: Romax for Pools #84801
05/07/03 07:48 PM
05/07/03 07:48 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
Harold,

I can't look at your sections right now because my '99 is among the missing, But I agree with your comments. Since the question was specifically on Motors I did not delve into other things.

Is there still a restriction on installing wiring for Underwater Fixtures from some types of sub-panels? can't seem to spot it in the 2002 NEC.

In 680.23(F)(2) it requires an "insulated copper equipment grounding conductor installed with the circuit conductors".... and "without joint or splice" ... I don't see any mention of existing sub-panels, or other reference to the source of the circuit.

Bill

[This message has been edited by Bill Addiss (edited 05-07-2003).]

Re: Romax for Pools #84802
05/07/03 08:07 PM
05/07/03 08:07 PM
C
caselec  Offline
Member
Joined: Apr 2002
Posts: 558
San Jose, CA
Bill

How about 680.25(A)

Curt


Curt Swartz
Re: Romax for Pools #84803
05/07/03 08:51 PM
05/07/03 08:51 PM
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,890
NY, USA
Curt,

Ah, that's what I was looking for, thanks.

Now, how do we define "Existing" ?

[Linked Image]
Bill

Page 1 of 2 1 2

Featured:

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

 

Member Spotlight
HotLine1
HotLine1
Brick, NJ USA
Posts: 6,917
Joined: April 2002
Show All Member Profiles 
Top Posters(30 Days)
sparky 20
Admin 20
Potseal 13
Popular Topics(Views)
243,537 Are you busy
180,340 Re: Forum
170,829 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.027s Queries: 15 (0.005s) Memory: 1.0230 MB (Peak: 1.1977 MB) Zlib enabled. Server Time: 2018-01-18 14:07:42 UTC