jar546
Forum Coordinator
Maintaining an up-to-date circuit directory is crucial for the safe functioning of an electrical system. It's essential to have a clear and precise identification of circuit breakers and switches for use by maintenance staff or emergency personnel. This is particularly true for switchboards, switchgear, and panelboards, in line with the identification guidelines set out in Section 110.22, which are applicable to all types of disconnecting mechanisms.
When it comes to circuits serving similar functions, they need to be identified based on their specific locations. For instance, circuits that power outlets in the kitchen, dining room, and along kitchen countertops should be labeled more descriptively than simply as "small-appliance branch circuits." Appropriate labels would be "kitchen wall outlets," "dining room floor outlet," or "countertop outlets near the left side of the sink." General labels like "lights" or "outlets" in circuit directories are insufficient as they lack the detailed identification demanded by this regulation.
Furthermore, it's mandatory to label spare devices clearly as such. These labels should reflect permanent characteristics rather than temporary usage conditions. For instance, labeling a circuit breaker for an office with the name of a current occupant is impractical, as it may not remain relevant if the occupant changes.
When it comes to circuits serving similar functions, they need to be identified based on their specific locations. For instance, circuits that power outlets in the kitchen, dining room, and along kitchen countertops should be labeled more descriptively than simply as "small-appliance branch circuits." Appropriate labels would be "kitchen wall outlets," "dining room floor outlet," or "countertop outlets near the left side of the sink." General labels like "lights" or "outlets" in circuit directories are insufficient as they lack the detailed identification demanded by this regulation.
Furthermore, it's mandatory to label spare devices clearly as such. These labels should reflect permanent characteristics rather than temporary usage conditions. For instance, labeling a circuit breaker for an office with the name of a current occupant is impractical, as it may not remain relevant if the occupant changes.