ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
It's been an interesting career
by Marienauripod - 05/23/22 12:21 AM
Run Cap subsitution question. Two vs. one
by LarryC - 05/20/22 09:01 PM
Material shortages???
by NORCAL - 05/02/22 04:12 PM
New in the Gallery:
240/208 to a house
240/208 to a house
by wa2ise, October 9
Now you know.
Now you know.
by Tom_Horne, September 7
Who's Online Now
0 members (), 43 guests, and 11 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#52742 06/04/05 07:58 PM
Joined: Jul 2004
Posts: 9,687
Likes: 10
G
Member
I put in a bunch of outside lights this spring and after about a foot of rain in the last couple of days the GFCI tripped. It turns out the FS boxes filled up with water that came in around the plugs in the top of the boxes.
Do you folks seal them with something?
Drill holes in the bottom of the box?
Something else?


Greg Fretwell
#52743 06/04/05 08:15 PM
Joined: Jan 2003
Posts: 4,391
I
Moderator
Greg many times I do both.

Silicone sealant on the threads of top hubs.

Drain hole drilled on the bottom of the box.

Water always seems to find a way in.


Bob Badger
Construction & Maintenance Electrician
Massachusetts
#52744 06/04/05 11:31 PM
Joined: Jul 2004
Posts: 9,687
Likes: 10
G
Member
"We don't need any stinking 110.3" ;-)

I was watching for black helicopters while I was drilling the holes. I am going with 3M 111 for the top plugs. (one of my favorite sealants) It is similar to spark plug boot grease. Real sticky silicone that does not harden. I actually have some swimming pool pipe stuck together with this and they are holding fine. This is the temporary plumbing for where my waterfall will connect.


Greg Fretwell
#52745 06/05/05 12:47 AM
Joined: Oct 2004
Posts: 26
Z
Member
I take my dikes and cut a v shaped notch in the bottom edge of the box for water to escape and of course seal up the top plug
w gasket seal. The product i like to keep on hand is hi temp rv silicone seal. It stays flexible and is good where heat is an issue.

correction: i just noticed that the post was about FS boxes and those would need to be drilled. I was refering to BELL boxes which are soft enough to be notched w cutters.

[This message has been edited by zero76 (edited 06-05-2005).]


Link Copied to Clipboard
Featured:

Tools for Electricians
Tools for Electricians
 

* * * * * * *

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

 

Member Spotlight
Theelectrikid
Theelectrikid
Levittown, PA
Posts: 811
Joined: April 2004
Top Posters(30 Days)
LarryC 3
NORCAL 2
Popular Topics(Views)
291,336 Are you busy
223,828 Re: Forum
209,228 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5