ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
Potseal 11
Recent Posts
600 KW 120/208 3 Phase Y protection
by SteveFehr. 07/23/17 09:46 AM
1913 American Electrician's Handbook
by gfretwell. 07/20/17 01:08 PM
Green House wiring
by ghost307. 07/20/17 09:10 AM
Permit Snafus...AHJs and Contractors Jump in
by HotLine1. 07/18/17 08:06 PM
New in the Gallery:
SE cable question
Popular Topics(Views)
239,265 Are you busy
174,724 Re: Forum
167,104 Need opinion
Who's Online Now
0 registered members (), 57 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#14438 - 09/22/02 09:28 PM Leaky pool light 120volt not problem....  
tsolanto  Offline
Joined: Sep 2002
Posts: 131
Long Island NY
I recently was asked to relocate a deck box for an in the ground pool. To do this I needed to bend the brass pipe down and extend it with another stick of brass and install it into a deck box.
Problem is when I bent the pipe I created a flood. I told the homeowner that he needed to reduce the level of the water and have the light fixed. I thought it was leaking. When I spoke to the pool installer he told me that the light was supposed to leak, that is what keeps the lamp cool.
Question is: Am I being hosed? Is this true? This is a 120volt light in the pool. Something doesn’t add up. 120volt and water.. Am I whacked or what???

Work Gear for Electricians and the Trades

#14439 - 09/22/02 10:05 PM Re: Leaky pool light 120volt not problem....  
Bill Addiss  Offline
Joined: Oct 2000
Posts: 3,878

He's right. It's a wet-niche which means that the Fixture housing is in water. It is a sealed fixture. There is water inside the conduit up to a point even with the water level of the pool. This is why the Deck box must be up higher than the maximum water level or else the box would have water in it.


#14440 - 09/24/02 07:21 AM Re: Leaky pool light 120volt not problem....  
sparky  Offline
Joined: Oct 2000
Posts: 5,311
what if there were no JB, and the pipework simply went into the poolhouse?

i would imagine the same philosiphy still applys, having any splice and/or termination above H2O level???

#14441 - 09/24/02 10:51 AM Re: Leaky pool light 120volt not problem....  
resqcapt19  Offline
Joined: Nov 2000
Posts: 2,148
680.23 and .24 require the J-box and that it have the bottom at least 8" above the highest possible water level.


#14442 - 09/24/02 04:30 PM Re: Leaky pool light 120volt not problem....  
sparky  Offline
Joined: Oct 2000
Posts: 5,311
I am missing it Don, i see where a JB is talked about, but not specifically required.

I suppose that i could put one in the pool house where the pool fixture runs both go?

bail me out please.......
[Linked Image]

#14443 - 09/24/02 11:18 PM Re: Leaky pool light 120volt not problem....  
nesparky  Offline
Joined: Jun 2001
Posts: 642
Wet niche light fixtures come with a cord attached. You have to install the j-box close enough to allow the light fixture to be removed from the niche, set up on the pool deck (while unwinding the cord) then open up the fixture to replace the bulb. The cord usally will not reach to a pool house. This is why the pool junction box is located as close as 4 feet from the pool edge and is to be 8" above the max water level.
This allows you to change out the bulbs without draining the pool.
The only service call I know of where you get paid to go swimming.


#14444 - 09/24/02 11:45 PM Re: Leaky pool light 120volt not problem....  
caselec  Offline
Joined: Apr 2002
Posts: 558
San Jose, CA
You can get different length cords on Wet-Niche fixtures. The project I am working on now the junction boxes are about 100' from the lights.

Curt Swartz

#14445 - 09/25/02 06:55 AM Re: Leaky pool light 120volt not problem....  
sparky  Offline
Joined: Oct 2000
Posts: 5,311
whoooo boy..... [Linked Image]

live & learn.....

#14446 - 09/25/02 09:14 PM Re: Leaky pool light 120volt not problem....  
CanadianSparky  Offline
Joined: Mar 2001
Posts: 85
Alberta Canada
You have to be careful with these lights too. We've had instances of the chlorine eating away the mounting hardware and the light floating to the top of the pool. This can cause the light to explode when parts of it are no longer surrounded by water. They're sometimes a fun way to break up your day if you get to go into the pool.

Member Spotlight
Montreal, Quebec, Canada
Posts: 28
Joined: March 2011
Show All Member Profiles 

2017 NEC and Related
2017 NEC
Now Available!

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.013s Queries: 14 (0.002s) Memory: 0.8006 MB (Peak: 0.9660 MB) Zlib enabled. Server Time: 2017-07-24 06:50:59 UTC