We also use the "quazite" for some of our underground installations. The boxes that I have seen with metal covers have been in sidewalks for street lighting and traffic lights. Some are utility owned, others are owned by the cities and were installed by electrical contractors. I have never seen one of these with a bonding jumper to the metal cover. Up until 2 or 3 years ago, the State of Illinois did not even use an equipment grounding conductor in traffic signal circuits, so even if someone wanted to bond the cover there was no way to do it. That has changed now, but they did not go back and install EGCs on the existing equipment.
Don
