What type of equipment is specifically mentioned as needing a permanent arc-flash label?

The requirement for a permanent arc-flash label is specifically associated with service equipment and feeder supplied equipment as detailed in the National Electrical Code (NEC). This requirement is in place to ensure the safety of personnel working on or near electrical equipment by providing important information about the incident energy levels that may be encountered during an arc flash event.

These labels are crucial as they help inform workers of the necessary personal protective equipment (PPE) and precautions needed when working on or near the equipment. The NEC emphasizes the importance of arc-flash labeling to mitigate risks and enhance safety protocols in electrical installations, particularly for areas where high energy levels can lead to serious injury.

In contrast, residential circuit boards, simplified electrical panels, and portable generators do not have the same stringent requirements for permanent arc-flash labeling addressed in the regulations, as these devices typically pose different levels of risk and are subject to different safety standards.