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1-3 Rigid Nonmetallic (PVC) Conduit

PVC conduit is produced and used for below-ground (direct burial or concrete encasement) installation. It provides high strength, a low absorption rate, watertight joints, and low installation costs. It is available in inside diameters ranging from 1/2 inch to 5 inches. PVC conduit comes in lengths of up to 20 feet (Figure 1-3). Article 347 in the NEC covers PVC conduit.

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Figure 1-3. PVC conduit

A breakdown of the sizes of PVC conduit in inches follows: 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 3 1/2, 4, and 5.


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David L. Heiserman, Editor

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Revised: June 06, 2015