Electrical Panel Labels Requirements

The markings required by paragraphs f 1 and f 2 of this section shall be of sufficient durability to withstand the environment involved.

Electrical panel labels requirements.

This is commonly done with circuit breakers for obscure panels that haven t been manufactured in decades. Arc flash labeling is the responsibility of the employer not the manufacturer or installer of the equipment. Working space around the breaker panel must be at least 30 inches wide and 72 inches from the ground up. But since we can t we have to make do.

Nfpa 70e labeling requirements by. Periodic review of existing ocpd settings is a good idea to maintain a safe electrical system. 1910 303 f 4 capable of accepting a lock. Disconnecting means required by this subpart shall be capable of being locked in the open position.

Uct certification that meets osha electrical standards. Unless changes in the electrical distribution system s render the label inaccurate labels applied prior to the effective date of this edition of the standard shall be acceptable if they complied with the requirements for equipment labeling in that standard in effect at the time the labels were applied. This often includes installing electrical equipment that isn t new but is recon ditioned refurbished or remanufactured instead. The wires need to either be color coded or marked with color coded labels.

Labeling is required for any piece of electrical equipment that may need examination adjustment service or maintenance while energized creating the potential for an arc flash incident to occur. When you have an electrical problem and need to shut off a circuit you should be able to identify the controlling circuit breaker immediately by looking at the panel index. Information about the wiring in the panel is also important. This standard has been updated to provide consistency of terms with other standards that address hazards and risk.

Breaker panel must be at least 4 feet off the ground but no higher than 6 feet. Electrical standard for industrial machinery article 700 5 e requires labeling of panel short circuit current rating sccr based on ocpd settings used. A related requirement is nec 210 5 c 3 which defines the labeling of conductors originating within each branch circuit panelboard or similar branch circuit distribution equipment.