312.2

[arnettda]

Is 312.2 the only article to be concerned about when mounting a panelboard to an interior block wall. I usually use strut but the extra thickness would make my working clearences non compliant.

 

[paul]

Remember that the back of most panel boards has that dimple in each corner that pushes it out the 1/4" necessary to comply with 312.2.

 

[iMuse97]

the dimples are compliant, but I've often used a piece of 1/2" plywood, painted (by me), to make it look good and get the panel further away from the condensation that builds up on walls like that in our region.

 

[infinity]

Is this interior block wall a damp or wet location? If not no airspace is required. All of the commercial panel boards we install do not have dimples on the back.