Arc flash labels are required to be placed in locations where they can be easily seen by workers who may be exposed to arc flash hazards. This includes locations near electrical equipment such as switchgear, panelboards, control centers, and other electrical equipment that workers will likely access.

According to the National Fire Protection Association’s (NFPA) 70E standard, arc flash labels must be placed on or near the electrical equipment. They must be visible to workers exposed to arc flash hazards while working on or near the equipment. The labels should be located at a height that is easily visible to workers and should not be obstructed by other objects or equipment.

In general, arc flash labels should be placed in a prominent location on or near the electrical equipment. They should be visible to workers exposed to arc flash hazards while performing maintenance, testing, or other tasks on or near the equipment. In some cases, it may be necessary to place additional labels in other locations, such as near entrances to electrical equipment rooms or near electrical panels, to ensure that workers are aware of the potential hazards and can take appropriate precautions.

Arc flash labels should also be placed in locations where they can be easily read by workers exposed to arc flash hazards. This includes ensuring that the labels are large enough to be easily read from a distance and that the text is legible and easy to understand. The labels should also include information about the hazard level, the required protective measures, and other relevant information, such as the voltage level and the available fault current.

It is important to note that arc flash labels are just one part of a comprehensive electrical safety program and should be used in conjunction with other safety measures such as training, personal protective equipment (PPE), and safe work practices to ensure the safety of workers who may be exposed to arc flash hazards.