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Subject - Required Workspace Flush Panel
Scott Vickrey


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From the Images and Drawing Collection

Ryan_J Hi Scott. Nice graphic. You may wish to include that the depth is dependant upon the nominal votage to ground, and if it exceeds 150V (nominal) you would have to comply with conditions 2 or 3, as applicable.
Scott Vickrey Thanks for the input Ryan. I thought about that originally , but I wanted to leave room for others to edit the image with their own comments. After reading your post I decided we should have both.



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From the Images and Drawing Collection

Ryan_J That turned out great, Scott. :)
cs409 think this is a good idea heading in a good direction
mgphilli How low to floor grade can this panel be placed and still meet the intent of NEC, Article 110.32?
Anything in Life Safety Code about minimum mounting height?
KSsparky I don't know of a minimum height requirement in the NEC. Obviously having to get on your knees to operate the breakers would be a little ridiculous, but I don't think it violates the definition of "readily accessible". What do you say inspector Ryan ?
Ryan_J 110.32 is for over 600 volt systems.

110.26 would be the applicible section, and it doesn't address a minimum...put it on the floor if you like :). There is a maximum, which is located in 404.8 (6'7" to highest breaker), and there is also a minimum height for RV parks, which is not less than 24" above grade [551.77(D)].