It addresses Type TC power and control cable. This is a specific manufacture of
cable. It's an assembly of two or more conductors under a nonmetallic jacket.
The grounding conductor may be bare or covered [336.1, 336.2].
336 lists eight uses, and the seventh (in industrial establishments under
specified conditions) has an exception. If you listed "in cable trays and in
raceways," you got two of the eight. The first listed use is "For power,
lighting, control, and signal circuits." This cable has many uses! Before you
specify it for a job, however, look for it in the ampacity tables in Article
310. It's not there. That's because it's a low power cable, not a general
use it where it's exposed to physical damage. Methods such as rigid conduit and
intermediate conduit (Articles 342 and 342, respectively) fill this particular
niche, but even in those cases you want to reduce the exposure as much as is
You can't install it outside a
raceway or cable tray unless it's supported by messenger wire or under the
special conditions described in 336.10(7) [336.2].
Because it's a tray cable, it doesn't require its own support. If you use it
outside of a tray or raceway, you must support it with a messenger wire
You can use
any terminations suitable for the conductors. The NEC says nothing on this
aspect of installation.