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damp vs wet #94534
07/31/05 12:06 PM
07/31/05 12:06 PM
watersparkfalls  Offline OP
Member
Joined: Mar 2005
Posts: 222
Washington...Not DC
what constitutes a canopie i have a 30 inch overhang on a house i am working on and want to use regular wp covers not the bubble in use cover. would most ahj accept this as damp location?

h20

2017 / 2014 NEC & Related Books and Study Guides
Re: damp vs wet #94535
07/31/05 12:31 PM
07/31/05 12:31 PM
M
macmikeman  Offline
Member
Joined: Jul 2002
Posts: 717
Honolulu, Hawaii
They don't where I'm at. But we get lots of sideways rain from strong tradewinds.

Re: damp vs wet #94536
07/31/05 01:21 PM
07/31/05 01:21 PM
G
George Little  Offline
Member
Joined: Jan 2004
Posts: 1,489
Michigan USA
That's an easy one- If it rains- does the rain hit the box? If it's in an enviorment where water is in use- Does it hit the box? Wet location. End of mystery.


George Little
Re: damp vs wet #94537
07/31/05 01:26 PM
07/31/05 01:26 PM
T
Tiger  Offline
Member
Joined: May 2005
Posts: 706
Crystal Lake, IL USA
Article 406.8 covers the question. Per usual it's up to the AHJ to define. In this area an in-use cover is never installed on new construction exterior outlets, and is required on all pool-related outlets.

The enforcement of 406.8 here falls more into the area of 406.8(B)(2)....depends on the intended use.

Dave

Re: damp vs wet #94538
07/31/05 01:55 PM
07/31/05 01:55 PM
S
sierra electrician  Offline
Member
Joined: Feb 2005
Posts: 219
North Fork, CA USA
When you water the grass, shrubs or hose off the patio can it get wet?

Re: damp vs wet #94539
07/31/05 06:02 PM
07/31/05 06:02 PM
renosteinke  Offline
Cat Servant
Member
Joined: Jan 2005
Posts: 5,316
Blue Collar Country
The "rule of thumb" I was taught was to considered the area under the eave, within a 45-degree area, to be "damp."
So, in your example, a 30" overhange woud create a "damp" zone for the top 30" of the wall.

Unfortunately, I have absolutely no "official" substantiation for this rule....yet!

Re: damp vs wet #94540
08/01/05 11:22 PM
08/01/05 11:22 PM
S
sandsnow  Offline
Member
Joined: Sep 2004
Posts: 167
Irvine, CA, USA
I agree with you reno


Larry LeVoir
Inspector
City of Irvine, CA
Re: damp vs wet #94541
08/02/05 09:07 PM
08/02/05 09:07 PM
F
foestauf  Offline
Member
Joined: Aug 2005
Posts: 49
Florida
Man can't remember exact code. But I think we follow the rule 3 feet is considered sufficient overhang to not require a bubble cover.

Re: damp vs wet #94542
08/03/05 06:55 AM
08/03/05 06:55 AM
D
drummer too  Offline
Member
Joined: Jun 2005
Posts: 12
Spring Hill, Florida, USA
What about during a hurricane.
Last year after hurricane jeanne I get a service call that gfci circuit tripping. The circuit feed outdoor and garage recp. Opening box after box and still no answer. I get to the last one that is chaulk, painted and untouched for some time. I razor knife the chaulking and paint to pry the cover off. About a quarter cup of water poured out of the box. Before I cut the cover off I did look for possible hole for water to get in but nothing but a little pin hole on side of cover in the chaulk. That meant the rain was diving sideways so hard it penetrated a hole the size of a ball point pen. The problem was cleared when the water was removed.
Under normal conditions the water would never have gotten in the box. But, now days in florida hurricanes are getting too normal. Even with a good size over hang some damp areas become wet.
In the 20 years in the field and 6 years as an EC, almost always the problem with water and outdoor outlets in not the opening to the outlets, but the seal behind at the wall or box. In-use covers just look good.
Tom

Re: damp vs wet #94543
08/03/05 12:34 PM
08/03/05 12:34 PM
G
gfretwell  Offline

Member
Joined: Jul 2004
Posts: 9,290
Estero,Fl,usa
"In-use covers just look good.
Tom"

I agree. I use the snap covers on the receptacles around my house, unless they will have unattended cords in them (only a few). I know it is technically a violation but driven rain is a problem on those bubble covers.


Greg Fretwell
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