Thanks for your comments. The thing that irks me about the NFPA-70E "0" rating for operating these 480V branch circuit breakers is that the bucket, housing the branch circuit bkr, contains two levels of HRC and must be labeled as the higher of the two. The line side, that for us can be as high...
thread279-155022
The above thread provides a good preface to my following comments:
Our arc hazard analysis is complete and we have the labels affixed to the equipment indicating the Hazard Risk Category and appropriate PPE etc. Realizing that NFPA-70A (soon to be a CSA document)and IEEE-1584...