PVC is not only the most used polymer for cables with a market share of 40%. PVC is a popular choice for cable conduits or ducts, which are the pipes that protect wires and cables from physical damage and environmental factors such as moisture and dust. PVC cable conduits can be buried and have a very long service life.

The pipes can be corrugated or smooth and are generally of small diameter (<25 mm). Larger pipes for cable protection underground (50 – 100 mm) are usually made of compact PVC.