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Are drains required in all rigid metal conduits per the NEC?

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bdn2004

Electrical
Joined
Jan 27, 2007
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812
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US
NEC article 225.22 seems to indicate that drains are required in outdoor conduits. If so, I wonder why this requirement is not in Section 344.
 
The rule in 225 is a more general rule and applies to all raceways run outside. What I don't find is a rule that requires a drain for raceways that are run in interior wet locations.
There is a specific rule in 230.53 for service raceways and a rule in 368.23 for busways.
 
Regardless of rules, you need a drain anywhere condensation might form.

Good on ya,

Goober Dave

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Oops, sorry -- I posted too quick.

If no condensation expected, no drain required. So not all rigid needs one.

Good on ya,

Goober Dave

Haven't see the forum policies? Do so now: Forum Policies
 
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