Question
Asked Nov 1, 2019
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When installing raceways underground in rigid nonmetallic conduit and other approved raceways, there must be a minimum of ___ of cover.

a. 6in   b. 12in.  c. 18in.   d. 22in. 

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Step 1

To find the cover distance in installing underground raceways in rigid non-metallic conduit.

Step 2

Rigid nonmetallic conduit is an unthreaded tubing with smooth wall. It is thin walled tube with high malleable property ( can be bend by hand easily). It is used to provide physical support to the electric cables and equipment which goes pass t...

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