In which locations is the use of flexible metallic conduit permitted?

The use of flexible metallic conduit is permitted in dry locations because these environments do not expose the conduit to moisture or any corrosive elements that could compromise its integrity. Dry locations are typically areas where the conduit will not be subjected to direct contact with water or high-humidity conditions, allowing the conduit to function effectively and maintain safety standards.

In contrast, wet locations could lead to corrosion and other issues with metallic conduits, while high-humidity environments can also pose a risk of moisture accumulation. Outdoor exposed areas may be subject to rainfall or other forms of precipitation, again creating conditions that could damage the conduit. Therefore, the suitable application of flexible metallic conduit is primarily in dry locations, where it can ensure reliable performance without the risks associated with moisture.