Which of the following is true about Class II hazardous locations?

Class II hazardous locations are specifically defined as areas where combustible dust is present in such a way that it creates a risk of explosion or fire under certain conditions. This class is integral to understanding how electrical installations can be safely designed and managed in environments where dust poses a significant hazard.

In Class II locations, the combustible dust can insulate and contribute to the thermal buildup, leading to potential ignition sources if equipment is not designed to handle such conditions. Therefore, installations in these areas must utilize equipment that is rated for Class II locations to minimize risks.

Understanding the characteristics of Class II locations is critical for electrical contractors to ensure compliance with safety regulations and to implement appropriate safety measures effectively.