What type of cable is specified in Article 336?

Article 336 of the National Electrical Code (NEC) specifically addresses Type TC cable, which stands for Tray Cable. This type of cable is designed for use in cable trays, and it is suitable for both indoor and outdoor applications. Type TC is often used to power fixed equipment, including motors and other machinery, as well as in applications where flexibility and a robust protective jacket are needed to withstand environmental factors and mechanical abuse.

Type TC cables are recognized for their versatility and ability to handle a range of applications in both industrial and commercial settings. They can be constructed with different insulation types that ensure they meet certain temperature ratings and environmental conditions, making them ideal for diverse installation scenarios.

In contrast, the other types of cable mentioned do not fall under Article 336: Type SE (Service Entrance) is used for bringing electrical power into a structure, Type USE (Underground Service Entrance) is specifically designed for underground installations and is not intended for tray applications, and Type FMC (Flexible Metal Conduit) is a type of conduit used to protect and route electrical conductors and does not fit the specifications laid out in Article 336. Understanding these distinctions and the specific applications of Type TC cable is crucial for an electrician managing installations in accordance with the NEC.