ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Recent Posts
Al Hildenbrand - Minneapolis - obituary
by Bill Addiss - 02/03/23 07:38 PM
by renosteinke - 01/27/23 09:52 PM
Does NEC 551.71 (F) apply to dwellings?
by BigB - 01/20/23 10:46 AM
Power submeter connections
by HotLine1 - 01/19/23 09:09 AM
New in the Gallery:
Burger King crown sillyness
Burger King crown sillyness
by wa2ise, December 11
240/208 to a house
240/208 to a house
by wa2ise, October 9
Who's Online Now
0 members (), 81 guests, and 51 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Sep 2002
Posts: 131
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???

Joined: Oct 2000
Posts: 4,082
Likes: 3

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.


Joined: Oct 2000
Posts: 5,392
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???

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.

Joined: Oct 2000
Posts: 5,392
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]

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.

Joined: Apr 2002
Posts: 558
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
Joined: Oct 2000
Posts: 5,392
whoooo boy..... [Linked Image]

live & learn.....

Joined: Mar 2001
Posts: 85
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.

Link Copied to Clipboard

Tools for Electricians
Tools for Electricians

* * * * * * *
2023 National Electrical Code (NEC)
2023 NEC Now Available!
* * * * * * *

2020 Master Electrician Exam Preparation Combos
2020 NEC Electrician
Exam Prep Combos:
Master / Journeyman


Member Spotlight
Posts: 27
Joined: December 2004
Top Posters(30 Days)
BigB 4
triple 3
Popular Topics(Views)
303,108 Are you busy
232,141 Re: Forum
216,859 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5