200.6 Different voltage system entering the same enclosure

[Isaiah]

We have two systems entering the same enclosure in multiple places
site wide: specifically 208/120V and 480/277V.
The inspectors have stated; according to 200.6, we needed to add labeling on each enclosure stating the voltages and phase/ neutral conductors color coding, ie white and gray respectively.
Does the labeling necessarily have to be the permanent nameplate type with adhesive backing or attaching screws? Or can it be a simple sheet of laminated paper posted on the enclosure or nearby?


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[infinity]

What specific part of 200.6 says that a label is required? We just use White for 120/208 and Gray for 277/480.

 

[roger]

The inspectors should be citing 210.5.

 

[Isaiah]

What specific part of 200.6 says that a label is required? We just use White for 120/208 and Gray for 277/480.

Many thanks infinity and Roger!


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[infinity]

I agree with Roger that 210.5(C)(1) is the correct code section. The OP said "enclosures" if they're not "each branch-circuit panelboard or similar branch-circuit distribution equipment" then conductor color coding is sufficient.

 

[don_resqcapt19]

What specific part of 200.6 says that a label is required? We just use White for 120/208 and Gray for 277/480.

Nothing requires a label for the grounded conductor. The rule in 210.5(C) only covers ungrounded conductors.

 

[Engser18]

Nothing requires a label for the grounded conductor. The rule in 210.5(C) only covers ungrounded conductors.

it is 200.6 (D) to be exact.

 

[mtnelect]

I am trying to change that.

 

[don_resqcapt19]

it is 200.6 (D) to be exact.

you are correct, I skipped over that