ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Top Posters(30 Days)
dsk 13
Admin 8
Recent Posts
Grid problem??
by annemarie1. 08/21/17 01:10 PM
Bathroom electrical
by doc. 08/19/17 06:53 AM
electircal ageing test on IPC
by SIAME. 08/15/17 02:43 AM
electrical aging test on IPC
by gfretwell. 08/15/17 12:27 AM
"Line level" audio on Cat 5?
by gfretwell. 08/08/17 10:39 PM
New in the Gallery:
Gallery Test
Popular Topics(Views)
240,051 Are you busy
175,671 Re: Forum
167,890 Need opinion
Who's Online Now
0 registered members (), 69 guests, and 10 spiders.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate This Thread
#169718 - 10/13/07 01:32 PM NEMA 3 covers required?  
bwise121  Offline
Member
Joined: Sep 2003
Posts: 114
Sacramento, CA USA
I'm working on a large patio that is elevated and enclosed on 2 of the 4 sides. Is there any codes related to not being required to put rain tight covers on switches/plugs if the overhead cover is a certain distance? If so, where is this located in NEC?

Thanks,
Byron


2017 / 2014 NEC & Related Books and Study Guides

#169722 - 10/13/07 02:00 PM Re: NEMA 3 covers required? [Re: bwise121]  
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
I'd have a hard time documenting this ... but I was taught the "45 degree rule." That is, an overhang's protection was imagined as an area of 45 degrees from the lip to the wall. Items within this zone were "damp," while items closer to the lip were "wet" locations.

This would be a more conservative practice than the NEMA-3R rain test, which presumes a rain falling at only a 15 degree angle.

Personally, I use this for deciding "to bubble or not." I put at least flap covers on anything that is exposed, and use 'Bell" type boxes where the boxes are exposed.
Why? My reason has nothing to do with weather.Rather, I am weary of evicting wasps and spiders from device boxes.



Member Spotlight
Theelectrikid
Theelectrikid
Levittown, PA
Posts: 810
Joined: April 2004
Show All Member Profiles 
Featured:

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

 

Shout Box
Powered by UBB.threads™ PHP Forum Software 7.6.0
Page Time: 0.011s Queries: 15 (0.002s) Memory: 0.7443 MB (Peak: 0.8623 MB) Zlib enabled. Server Time: 2017-08-22 01:53:47 UTC