Rooftop derating

[frenchelectrican]

Hello guys and ladies i know not very often i get a chance to post a new topic but anyway i will like to pass the infomation along to the members in here and i do have a derating chart for rooftop appacation. { it will work on wall mounted conducts as well }

It kinda instering with the chart for tempture derating for diffrent areas.
anyway here it http://www.copper.org/applications/electrical/building/pdf/derating.pdf

I just want to pass it out to help you with this details

Merci, Marc

 

[mdshunk]

Now there's a handy chart. Thanks Marc!

(feels kinda weird typing my own name).

 

[frenchelectrican]

Now there's a handy chart. Thanks Marc!

(feels kinda weird typing my own name).

LOL i know how you feel on that one

Merci

 

[cadpoint]

Very Good!

Very Good!

This seems very complete in-case one wants to work on the Diamond Shoals Lighthouse roof, X numbers of miles of the Cape Hatteras Lighthouse, one will be ready...:wink:
NC DIAMOND SHOALS (LS) 83 143 123 113 108 88

 

[cadpoint]

Its a great link, Thanks...
This exact subject matter did come up on an install this past summer, the local AHJ said they we not concerned, and frankly didn't even consider it.
"Oh the times they are a changing.", Bob Dylan...

 

[frenchelectrican]

Yeah it is a great link so the reason why i do that because this issue been discussed before so i thought why not post it now.

so that way when the warm weather come up they can be prepared for derateing factors [ i know it is highlited on 08 code cycle ]

Merci, Marc