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    Abrun44's Avatar
    Abrun44 Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Nov 23, 2013, 08:20 AM
    What size aluminum triplex?
    I want to deliver 50 amps to my well sight using direct burial triplex aluminum. It is 625' from existing power. What size wire should I use?
    stanfortyman's Avatar
    stanfortyman Posts: 5,598, Reputation: 279
    Electrical & Lighting Expert
    		  
    #2

    Nov 23, 2013, 08:43 AM
    Too many variables to answer right now.

    What are you powering? Just the well?
    Why 50A?
    What does the well draw?

    625' is a very long way to go with 120/240V. Is there any closer source?
    ma0641's Avatar
    ma0641 Posts: 15,675, Reputation: 1012
    Uber Member
    		  
    #3

    Nov 23, 2013, 10:23 AM
    Even at a 20 Amp draw, #6 Aluminum shows:
    Voltage drop: 15.57
    Voltage drop percentage: 6.49%
    Voltage at the end: 224.43
    #4Aluminum At 50 Amps is worse:
    Voltage drop: 24.49
    Voltage drop percentage: 10.20%
    Voltage at the end: 215.51
    Closest to 5% loss is 1/0 AWG
    Why is the well so far away? 625 ft. is not going to be easy without a pole and transformer.
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