Intresting have you seen any boxes or cabinets marked? I will be looking for them but I still probably still bond bush so not to upset an inspector who hasn't seen the marking, plus just assurance that it is bonded and be ease of mind.
Re: Are concentric or eccentric knockouts evaluated for bonding?#93791 06/18/0505:14 PM06/18/0505:14 PM
The following table summarizes the box and enclosure categories where such an evaluation is available and how to identify compliant products that can be installed according to the exception to Section 250.97.
Category Code Product Category Concentric and eccentric knockouts evaluated for bonding?
BGUZ Boxes, Junction and Pull Only when product is marked*
CYIV Cabinets and Cutout Boxes Only when product is marked*
QCIT Metallic Outlet Boxes All products comply
* Products Listed for these applications are provided with a marking, such as "Concentric (or eccentric) knockouts suitable for bonding conduits for non-service conductors."
Joe Tedesco, NEC Consultant
Re: Are concentric or eccentric knockouts evaluated for bonding?#93792 06/23/0503:38 PM06/23/0503:38 PM