Placing Pullbox in front of Switchgear Rear Access Door

[philly]

Are there any code restrictions for placing a pullbox in front of a rear access switchgear door if the section can still be accesses via a front access door?

Contractor is trying to pull new cables into an existing LV switchgear enclosure which was originally bottom entry and is now intending to put a pull box mounted to rear switchgear door to turn cables into switchgear enclosure for termination.

This will obviously prevent access with the rear door, however this section is just the incoming pull section of the switchgear and thus allows access through a front door. In this case is it permissible to block the rear access door with a pullbox if the interior of switchgear section can be accessesd from front?

 

[drktmplr12]

How far from this new box to the wall?

Why not make one of the sides removable so it may be accessed?

 

[philly]

How far from this new box to the wall?

Why not make one of the sides removable so it may be accessed?

Pull box is probably about 4-5' from fence. Pull box side will be removable however it will only allow access to cable transition from UG conduits to inside switchgear. It will still block rear door access to switchgear however as stated it can still be accessed from front.

Just wasn't sure if 110.26 came into play here at all with these doors being design and intended to provide access to switchgear (even though technically not needed).

 

[JoeStillman]

Why not make the rear compartment bigger with an extension ring? Just move the door back by whatever depth the pull box would have been. There's a company in Collingdale that can make that for you.

 

[philly]

Why not make the rear compartment bigger with an extension ring? Just move the door back by whatever depth the pull box would have been. There's a company in Collingdale that can make that for you.

Thats an interesting concept that I have never seen or heard of. Does it simply extended the rear of the switchgear by a desired amount with ring that allows conduits to come up into bottom of ring and have door on outside of ring?

 

[JoeStillman]

Thats an interesting concept that I have never seen or heard of. Does it simply extended the rear of the switchgear by a desired amount with ring that allows conduits to come up into bottom of ring and have door on outside of ring?

That's right. PP&B did it for us on some 35 kV gear that needed to get new underground pipes into it. Didn't have to undermine the gear and did almost all the underground work with the old doors shut and the power on.