In an NFPA protective clothing class I'm attending, there was a
question about what type FR clothing should be worn when working on a
125VAC energized control circuit. From the job hazard analysis
matrices we were handed out, the only mention of "control circuits"
were for MCCs(motorized control centers). The descriptions of typical
jobs in 240VAC or less panelboards didn't mention any control
circuits....just energized parts.

Yes, the question is vague and poorly worded...yes, in the real world, I would know whether I was working on a panelboard or a MCC or some sort of other cabinet. I guess my question boils down to whether NEC's definition of a panelboard can include the use of a control circuit enclosed within? I googled panelboard and "control circuit" together and didn't seem to find any relevant hits.

Any examples or model numbers if such a beast exists would be appreciated. Also, if someone knows the NEC and OSHA's 1910 backwards and forwards and knows that control circuits aren't in panelboards, I'd appreciate a reference.

Thanks in advance.

Danny

Yes, the question is vague and poorly worded...yes, in the real world, I would know whether I was working on a panelboard or a MCC or some sort of other cabinet. I guess my question boils down to whether NEC's definition of a panelboard can include the use of a control circuit enclosed within? I googled panelboard and "control circuit" together and didn't seem to find any relevant hits.

Any examples or model numbers if such a beast exists would be appreciated. Also, if someone knows the NEC and OSHA's 1910 backwards and forwards and knows that control circuits aren't in panelboards, I'd appreciate a reference.

Thanks in advance.

Danny