15 kV clearance issue

[tommom]

I have a contractor who has located a junction box within 4'6" of the front of my switchgear - contrary to the drawings. According to NEC 110.34 (A), condition 2 for 7200 volts to ground, we need 5'0".

What I would like to do is cover or coat the box with insulation to make it Condition 1 for that table, requiring only 4' clearance.

Any ideas? We've considered replacing the box with something 6" shallower, replacing it with a fiberglass box, moving the switchgear, moving the box. None of these can be done.

 

[davidbeach]

The box can be moved. The contractor may not have enough money to make it happen, but the box can be moved.

 

[JLSeagull]

Move the box.

 

[dpc]

Can you raise it up so it is well above the top of the gear? If it is just a TJB, there is normally little need to access it after it is installed.