I have recently been given the responsible of "Safety Manager" within my facility...I'm now focusing on Panel Boxes...The current Panels I'm auditing have been around for almost 30 years...I can find no "Arc-Flash" labeling or "Fault Current" labeling...
I went to our "Utilities" providers Transformer that supplies power to our facility (just outside the building) it looks just as old as the panels within the facility. It's all gray with two labels (see attachments) one is a warning label stating "keep out hazardous voltage inside" the other is a warning label stating "Potential Arc Flash Hazard"
I could not find any labeling as to the Input/Output voltage or current. I believe I need these in order to perform an "Arc-Flash" assessment for the Main power panels within our facility.
1st question---Should this labeling (input/output V & I) be on the Utilities Transformer? or do I have to call and they have to supply this information?
2nd question--- the only panels required to have the "Arc-Flash" labeling are panels containing voltages of 220/240 and over?
3rd and last question---Where an "Arc-Flash" label is required is a "Fault Current" rating label required also...
t's easier to convince particular people that they have been in violation for years when I have more than just my opinion available.
Love this site and look forward to any responses
Thanks