To Label or Not To Label

What Equipment Needs Arc Flash Labels?

You’ve ordered an?arc flash study?for your facility. You know that Arc Flash Labels are to warn Electrical workers and maintenance personnel about potential arc flash hazards in Electrical Equipment, but do you know what items of Electrical Equipment need Arc Flash Labels?

Here’s a hint… not all Electrical Equipment requires an Arc Flash Label.

Items that?should?have arc flash warning labels:

·????????Switch Boards/ Panel Boards /Distribution Boards

·????????Industrial Control Panels

·????????Enclosed Circuit Breakers

·????????Motor Control Centers

·????????Disconnects/Safety Switches (fused)

·????????Inverters

·????????UPS

·????????CT Cans

·????????Transformers

·????????External Variable Frequency Drives

·????????TVSS’s (External)

·????????SPD’s (External)

Items that?do NOT?require arc flash warning labels

·????????Disconnects/ Safety Switches (un fused)

·????????Motors

·????????Internal Meters

·????????Lighting Control Panels

·????????TVSS’s (Internal)

·????????SPD’s (Internal)

·????????Meter Control Sockets (Residential/Dwelling Unit)

Remember, this list is not exhaustive. NFPA 70E states that any electrical equipment operating at 50 volts or more, and “likely to require examination, adjustment, servicing, or maintenance while energized” requires an arc flash label.

Arc Flash Hazard (AC/DC)