Grounding Pull Box Covers

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aperez01

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On a current project, my inspector is requesting that we install a ground wire #6 or larger from the ground rod installed in the pull box to the steel cover with a stainless steel bolt (leaving a loop to remove the cover). He is stating this is a requirement in the NEC 250 section. I can't find it anywhere.
 
I think a little more information would help. What type box and how is the cover attached ? What voltage ?
Why is there a ground rod associated with the box ?
Is there overcurrent protection for the condcutors in the box ?

Section 314.28(C). 250.110 , and possibly 250.148 would be applicable.
 
Not sure what the ground rod is for. Take a look at 314.30(B)
If the ground rod is not required,then bonding of it is per 250.54
If the ground rod is part of your GEC then the bonding to it is per 250.66
If this is a ground rod box with metal cover then the rules for bonding that lid are gray. There is no requirement for the bolt to be SS, thats a vest pocket rule.
 
Just precast concrete pull boxes ranging from 2'x3' to 4'x5' with cast iron covers.

The pull boxes are for power (480V-4160V), control (120V), and instrumentation.

We had to install 4/0 bare copper in every ductbank (pwr, ctnl, instr) and connect it to a ground rod when entering and exiting a pull box.
 
Thanks for the clarifcation. In '08 the reference would be 314.30(D) (250.96, 250.92)
 
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