mini knockouts in bottom of panel

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  #1  
Old 10-03-14, 03:12 PM
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mini knockouts in bottom of panel

Just curious, in my electrical panel, along the bottom there are two very small knockouts (much smaller than a 1/2"). I cant imagine any sort of conduit or wire being attached there.

Are these perhaps weep/drain holes?
 
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Old 10-03-14, 04:03 PM
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Nope...not weep holes. Those are there for grounding wires. At one time the ground wires were just passed thru those holes. For the most part now a regular NM wire connector is used for the ground wire.
 
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Old 10-03-14, 04:21 PM
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I see... thanks. They would make for convenient weep holes though in case of water intrusion. Or are panels made to have provision to drain... as in the corners or something?
 
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Old 10-03-14, 04:55 PM
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Well..... to be honest.... panels aren't supposed to get water in them but usually they'll drain from the bottom corners which aren't sealed. I guess if you get a flood there you could pop out those mini knockouts.
 
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