Q.1: Non-metallic conduit must not be installed where extremes of ambient temperature, why?
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Non-metal conduits are mainly composed of PVC conduits and are popular because they are lighter than steel and metal pipes. PVC tubes are also recommended as they are usually cheaper. PVC pipes require PVC fittings that include the outlet body. Most of the same types of fittings used in metal pipes are used in non-metal pipes. Other advantages of non-metal cables are moisture resistance, resistance to corrosive substances, and easy installation. Graber also offers a variety of PVC tubes, elbows, outlet bodies, and PVC coated accessories. Metal tubes are used to protect sensitive circuits from electromagnetic interference from confined power cables, while non-metal tubes are corrosion resistant and lightweight, reducing labor and installation costs.
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