I work in a healthcare facility. While doing an inspection the other day, I came across O2 cylinders properly labeled full and empty and were divided the correct way. There is no door needed to access this room where the tanks are. I was told a NFPA placard sign may not be necessary in this case. Please assist, thanks.
Two industrial control panels, 480/60/3 are installed on a machine system. Each has a disconnect switch. One panel houses variable frequency drives, and the low-volt signal wiring for the drives is derived from the other panel that houses the PLC which is the source of the control wiring. Since the disconnect switch on the drive panel does not