Hint: Creative problem solving.
When you don’t have the correct cover, but you also don’t want to leave the switches uncovered, you get creative. Apparently, that is what happened here. Normally this type of metal cover is installed on a metal 4-in. square box using 6/32 screws to secure the devices to the cover and 8/32 screws to secure the cover to the box. In this case, the installer secured the devices to the box with 6/32 screws, then flipped the metal cover over and secured it to the devices with 6/32 screws. While most of the box opening is covered by this metal plate, the corners of the box have some gaps, therefore, this plate does not completely cover the box opening as required by Sec. 404.9(A). I’m not sure using this cover in this manner would comply with Sec. 110.3(B) either. Without removing the cover to verify, I’m hopeful that it’s grounded and bonded to the device yokes via connection of the EGC to the metal device yokes as required by Sec. 404.9(B).
