What type of cable is permitted for fixed wiring in aircraft hangars not in a Class 1 location?

The type of cable permitted for fixed wiring in aircraft hangars that are not in a Class 1 location is TC, which stands for Tray Cable. TC cables are specifically designed for use in power and control circuits, making them suitable for various applications, including hangars where exposure to potential hazards might be present, but where the environment does not reach the criteria for a Class 1 location.

Tray cables have several advantages: they are flexible, can be installed in raceways or cable trays, and typically include a variety of conductor sizes and materials, enhancing their adaptability to different installations. Their construction allows for greater durability against environmental challenges typical to hangar settings, including exposure to humidity and potential mechanical impact.

In contrast, the other types of cables listed do not meet the specific requirements or applications for such environments. For example, UF (Underground Feeder) cable is designed for underground use and is not appropriate for the wiring needs in an aircraft hangar. NM (Non-Metallic Sheathed) cable is typically used in residential wiring and lacks the durability and environmental resistance required for the hangar setting. FCC (Flexible Cord Cable) is also not suitable as it is intended for temporary or portable installations rather than fixed wiring.

Therefore, TC cables