QA/QC guy
New User
- Location
- Mesa, AZ and Cheyenne, WY
- Occupation
- A/QC Engineer for Commissioning
I have 2 local disconnects from different busways (277/480VAC @100A).
They feed S1 and S2 of an MTS.
The raceway between them is NON-metallic liquid tight.
One of the boxes has reducing washers due to an oversized hole (not concentric or eccentric knock-outs) to fit the raceway.
I do not believe a bond bushing is necessary because these are feeder circuits not service conductors.
Another electrician thinks it is due to NEC 250.97 and 250.92B (2020 NEC).
We've searched the code and have found: "if you torture the code book enough - it will confess to anything".
I would like to hear opinions from electricians or inspectors.
They feed S1 and S2 of an MTS.
The raceway between them is NON-metallic liquid tight.
One of the boxes has reducing washers due to an oversized hole (not concentric or eccentric knock-outs) to fit the raceway.
I do not believe a bond bushing is necessary because these are feeder circuits not service conductors.
Another electrician thinks it is due to NEC 250.97 and 250.92B (2020 NEC).
We've searched the code and have found: "if you torture the code book enough - it will confess to anything".
I would like to hear opinions from electricians or inspectors.
