In which type of location is LFNC not allowed to be used, unless otherwise permitted?

LFNC, which stands for Liquidtight Flexible Nonmetallic Conduit, is typically not permitted for use in hazardous locations unless specifically authorized by the relevant codes or standards. Hazardous locations are defined areas where flammable gases, vapors, or combustible dusts may be present, which pose a risk of fire or explosion. The materials and conduits used in these environments must meet stringent safety standards to mitigate these risks.

In these locations, the potential for ignition is a critical concern; therefore, the use of nonmetallic conduits like LFNC can be restricted due to their material properties and the potential for damage or deterioration in harsh conditions. These restrictions help maintain safety and ensure that the installed conduit systems can withstand the environmental factors present.

In contrast, LFNC may be permissible in residential, wet, or dry locations where the risks associated with fire and explosion are considerably lower, provided that the installation meets other applicable standards.