ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Shout Box
Recent Posts
Linear Power Supply Quits Under Load
by JoeTestingEngr. 10/18/18 08:47 PM
220/230/240V 60Hz Systems
by dsk. 10/17/18 01:25 PM
PLC/HMI Enclosure C2, D1
by ghost307. 10/16/18 03:31 PM
Tingle off the water spigot
by dsk. 10/15/18 02:36 PM
New in the Gallery:
What is this for?
Plug terminals
Who's Online Now
0 registered members (), 12 guests, and 26 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Pool light extension-Brass to PVC #217753
11/10/16 09:39 PM
11/10/16 09:39 PM
B
BigB  Offline OP
Member
Joined: Mar 2004
Posts: 734
Tucson, AZ USA
A wet niche pool light brass conduit needs to be extended using PVC. Is there any violation in the proposed drawing?


Attached Files
pool light.PNG (36 downloads)
2017 / 2014 NEC & Related Books and Study Guides
Re: Pool light extension-Brass to PVC [Re: BigB] #217754
11/11/16 12:10 AM
11/11/16 12:10 AM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,298
Estero,Fl,usa
I think you have met the intent of the code but your local AHJ might question the method. You do understand the pipe is under water and the joint has to be water tight?


Greg Fretwell
Re: Pool light extension-Brass to PVC [Re: BigB] #217758
11/11/16 01:13 PM
11/11/16 01:13 PM
G
ghost307  Offline
Member
Joined: May 2005
Posts: 958
Chicago Illinois USA
I've never run a grounding wire outside of the conduit in that manner. I'd run the ground wire inside the pipe from the fixture all the way to the box.


Ghost307
Re: Pool light extension-Brass to PVC [Re: BigB] #217759
11/11/16 03:12 PM
11/11/16 03:12 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,298
Estero,Fl,usa
If you run the bond wire to the niche, you need a lug for the purpose (may not be there on one made for brass pipe) and it needs to be potted. It would make this a lot closer to the letter of the code. The pool will need to be drained down to cut that pipe anyway. I am not really sure how you would mount a lug in a metal niche. Sheet metal screws are out and it needs to be water tight.


Greg Fretwell
Re: Pool light extension-Brass to PVC [Re: BigB] #217760
11/11/16 09:18 PM
11/11/16 09:18 PM
B
BigB  Offline OP
Member
Joined: Mar 2004
Posts: 734
Tucson, AZ USA
The brass conduit is under the deck for 10 feet then comes up in a planter, so no way to get to the niche without cutting up the deck. The threaded coupling on the 90 coming up broke. It is my customer but since I don't do pool wiring I referred them to the local pool builder. She didn't like his price so she called her pool maintenance guy and this is how he proposes to have it done, but he himself won't do it. (he also suggested a brass plumbing union) I won't do it either so we are at am impasse. Not only does the break need to be repaired but she wants the deck box moved over a few feet to make way for french doors.

Re: Pool light extension-Brass to PVC [Re: BigB] #217762
11/12/16 05:11 AM
11/12/16 05:11 AM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,298
Estero,Fl,usa
Can you find red brass pipe? That would be the best way although I am not sure if you can find a metal J box. I suppose they still have them but I have never seen anything but PVC

I think that brass "conduit" is really plumbing pipe anyway (tapered threads) because it needs to be water tight. If the AHJ is on board I would use a brass coupler and an RNC male adapter. Your bond wire is just taking the equipotential grid to the J box. That grid allows any chapter 3 method of splicing. There should also be a EGC in the lamp cord.


Greg Fretwell

Featured:

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

 

Member Spotlight
HappyElectrician
HappyElectrician
Penn USA
Posts: 31
Joined: December 2011
Show All Member Profiles 
Top Posters(30 Days)
sparky 11
Popular Topics(Views)
250,607 Are you busy
188,121 Re: Forum
177,786 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.6.1
(Release build 20180101)
Page Time: 0.026s Queries: 16 (0.005s) Memory: 0.9778 MB (Peak: 1.1285 MB) Zlib enabled. Server Time: 2018-10-22 12:11:30 UTC