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    chipstakk's Avatar
    chipstakk Posts: 2, Reputation: 1
    New Member
    		  
    #1

    Apr 13, 2009, 01:36 PM
    Undergound wiring to garage
    How deep to I have to go, do I need conduit, what gauge do I use for a 50A service line to tha garage
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
    Uber Member
    		  
    #2

    Apr 14, 2009, 04:56 AM
    For residential, you can use either:

    #6 - 3 wire plus ground UF cable buried 18 inch deep,

    Or,

    1 inch conduit buried 18 in deep with 3 -# 8 with THWN or XHHW insulation and 1 #10 ground.

    If the soil conditions are rocky, I suggest using PVC conduit.

    Check with local codes for any preferences, and if a warning tape buried below grade and above the raceway is required.
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