Which conduit type is most suitable for outdoor, exposed installations?

The most suitable conduit type for outdoor, exposed installations is rigid metal conduit (RMC). RMC is constructed from heavy-duty metal, providing strong physical protection for electrical wiring against environmental factors such as weather and physical damage. Its robustness makes it ideal for outdoor applications where it may be exposed to impacts or extreme conditions.

RMC also offers excellent grounding capabilities, which enhances safety and compliance with electrical codes. The metal construction of RMC allows it to withstand UV exposure, moisture, and temperature changes, making it suitable for a variety of outdoor setups, including commercial and industrial applications.

While options like EMT (Electrical Metal Tubing) and flexible metal conduit provide some level of protection, they do not match the durability and strength of RMC for harsh outdoor conditions. PVC is lightweight and resistant to corrosion, which makes it a good choice for certain applications, but it doesn't match the mechanical strength of RMC when it comes to protecting against physical impacts in exposed settings.