Which type of conduit is known as RTRC?

Reinforced Thermosetting Resin Conduit (RTRC) is a type of conduit made from a thermosetting resin that is reinforced for added strength and durability. This material is particularly suited for environments where moisture and chemical exposure are concerns, as it provides excellent resistance to both. RTRC is lightweight, yet strong, making it easier to handle and install compared to some metal conduits.

Its applications often include outdoor installations or locations where corrosion could be an issue, allowing for effective protection of electrical conductors. The unique properties of RTRC enable it to withstand various environmental conditions while also complying with NEC requirements for durability and safety.

The other conduit types listed, while having their own uses and benefits, do not match the specific characteristics and designation of RTRC, which highlights its specialized application in electrical installations.