Rigid Conduit – Offers maximum protection against impact and environmental stress; typically metallic or heavy-duty non-metallic. Unlike open wiring or cable assemblies, conduit provides a controlled pathway that shields conductors from mechanical damage, moisture, chemical exposure, and UV radiation, while also allowing future. An electrical conduit is a plastic or metallic pipe that routes electrical wires in an installation while protecting the electrical cables from damage in an exposed area. Therefore, electrical conduits are common in exposed locations such as exterior wall surfaces, crawlspaces, attics, basements. Types of Conduits: Conduits are classified into metallic, non-metallic, flexible, and special-purpose types, each suited for specific environments like indoor, outdoor, underground, or fire-sensitive areas. Metallic Conduits: EMT, IMC, and RMC provide varying levels of mechanical protection. EMT is. PVC Schedule 40 and Schedule 80 are the most common underground conduit materials for standard direct burial and concrete-encased duct banks, but temperature limitations make them unsuitable for high-heat duct bank applications. In this article, we will discuss seven.