Article 110.16 addresses what important safety aspect in electrical installations?

Article 110.16 of the National Electrical Code (NEC) specifically addresses the important safety aspect of arc flash and shock hazard labeling. This provision is crucial for ensuring the safety of electrical workers who may be exposed to these hazards during installation or maintenance of electrical systems. By requiring clear and visible labels that indicate the presence of potential arc flash and shock hazards, the NEC aims to enhance awareness and compliance with safe work practices.

These labels provide critical information about the level of risk associated with electrical equipment and the necessary personal protective equipment (PPE) required for safe operation. This proactive approach helps to mitigate accidents and injuries, making it a vital component of electrical safety standards.

The other choices, while related to electrical safety and installations, do not pertain directly to Article 110.16. Grounding requirements, emergency shutoff procedures, and wire gauge specifications are covered in different sections of the NEC, emphasizing the broad range of safety measures needed to maintain a safe electrical environment.