I'm a consultant who specializes in industrial hygiene issues; no expert in electrical safety at all.
I have a client who has a LO/TO program which is in woeful shape. I'm giving them some advice about getting up to speed, and one of the issues that I raised was the lack of labeling (with regard to purpose) they have on their electrical disconnects. Talked to them about it.
Someone raised the issue that this requirement [29 CFR 1910.303 (f)] doesn't apply to circuit breakers. I disagree, at least from a safety perspective.
The circuit directory in the panel is to show what circuit breaker controls which circuit and some what the circuit's location or area. It may not be enough for LOTO. Any thing that requires LOTO should have a disconnecting means in sight of it. There are exceptions. The circuit directory is only a place to start for LOTO. Some times turning off a breaker and locking it out will not be possible because of other loads on that circuit. Please advise your client to have a licensed electrician help him set up the electrical portion of his LOTO program.
#16643 - 11/15/0205:06 PMRe: Help on labeling of disconnects
P.S. There are some good accident photos resulting from improper or non-existent LOTO at my site. They are GRAPHIC, but they demonstrate what can and will most likely happen if LOTO is not done DEFECT FREE 100% of the time.