Where may PVC condiut not be installed?

PVC conduit should not be installed in areas subject to direct sunlight for extended periods, as UV exposure can degrade the material over time. It is also not suitable for underground applications in areas with high moisture or where it could be exposed to chemicals that may corrode the conduit. Additionally, PVC conduit should not be used in locations where it may be exposed to high temperatures, such as near heat-producing equipment or in high-temperature environments.