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Posted By: George Little How deep? - 02/25/05 03:44 AM
How deep should electrical conduit be under a garage floor? Typically 4" thick concrete.
Posted By: gfretwell Re: How deep? - 02/25/05 06:19 AM
I see the question with 300.5 but I think it is still "under a building" and 0" min below the slab.
If this is a car port or parking pad (outside parking area in a residence)it does look like 18"
Posted By: shortcircuit Re: How deep? - 02/25/05 09:46 AM
My interpretation...0" deep, and the code doesn't specify the need for concrete cover.

shortcircuit
Posted By: George Little Re: How deep? - 02/25/05 02:04 PM
Notice that if we are talking Service Conductors under a building with no concrete floor we are required to have 18" of cover- 230.6(4). We could have this with a building such as a pole barn etc.

Keep editing this till you get it right George [Linked Image]


[This message has been edited by George Little (edited 02-26-2005).]
Posted By: HLCbuild Re: How deep? - 02/26/05 01:56 AM
I think we go to Art. 100 definitions and review "Garage" which is very specific in saying this is a "building". From here it's back to Art 300-5 "under a building" which requires 0 depth.
Posted By: PCBelarge Re: How deep? - 02/27/05 12:53 AM
Read George's post - 230.6(4
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