In the context of conduit systems, what does "thick wall" refer to?

In conduit systems, "thick wall" refers to heavy-duty construction. This type of conduit is designed to provide enhanced durability and protection for the wires and cables it houses. Thick wall conduits are made from materials that are more resistant to impact, pressure, and environmental factors, making them suitable for applications where there is a higher risk of damage or where cables need to be safeguarded against physical stresses.

Heavy-duty construction often entails a thicker profile than standard conduits, allowing them to withstand harsher conditions, such as those found in outdoor or industrial settings. This makes them ideal for underground installations or areas where there may be heavy machinery or equipment that could potentially affect the integrity of the conduit.

The other options focus on different characteristics that do not align with the properties of thick wall conduit systems. Lightweight conduits are not robust enough for high-impact areas; temporary use conduits do not require heavy duty features; and standard PVC materials may not meet the specifications for heavy-duty applications, which necessitates the enhanced strength and resistance of thick wall materials.