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Master electrician advise needed

Discussion in 'Home Improvement' started by Greybeard, Jul 9, 2019.

  1. Jul 11, 2019 at 6:45 AM
    #61
    markg

    markg New Member

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  2. Jul 11, 2019 at 6:47 AM
    #62
    markg

    markg New Member

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    Is this from the xformer to the building?
     
  3. Jul 11, 2019 at 6:48 AM
    #63
    markg

    markg New Member

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    :D
     
  4. Jul 11, 2019 at 9:39 AM
    #64
    BTBAKER

    BTBAKER DIFFERENT NAME. SAME JUNK.

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    No. But, if you’re talking about switchgear than xfmer to gear is always copper.
    Here is a project that was just completed. All feeders exit copper.
    Your comment of “exclusively” is what I am arguing. I’ve seen entire underground circuits right down to the last pad mount xfmer be run entirely with copper. But, aluminum is absolutely utilized as well and probably more common.

    80053A54-B51A-4FC5-8271-B4CC389BBDDA.jpg
     
  5. Jul 11, 2019 at 12:59 PM
    #65
    markg

    markg New Member

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    You say project. Is this a private project? Utility work done for a private development or by a utility contractor (line crew) doing work for a private project?
    Looks to me like this is a private project, with medium voltage cable going to a medium voltage transformer inside or on a private project that is owned by someone other that the electric company.
    If this were power company (utility) cost of install, they would probably not run 1000 MCM cu 15kv cable.
    They would have run smaller aluminum 35kv or higher cable underground, or a drop from the pole.
    Electric companies are not going to just give someone cu. The electric utility company will provide the customer with electricity and with aluminum conductors unless someone specifically request cu.
    If a customer want cu. the customer will pay for it.
     
  6. Jul 11, 2019 at 1:24 PM
    #66
    BTBAKER

    BTBAKER DIFFERENT NAME. SAME JUNK.

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    Dude, you have zero clue what you’re talking about. You have never even worked for a utility. You’re an electrician yet I’m still here arguing with you.
    No, it’s a not private project. It a public project by a large utility. We call them projects anytime a large amount of work is being done. Them deciding to pull copper is very dependent on load.
    I’m done arguing with you. It’s getting ridiculous.
    And I told you, I work for a UTILITY. This is for a UTILITY designed and engineered by a UTILITY. Why do you find it so hard to understand that you DONT know what every utility does within their system?
    Have a good one bro, I’m done arguing this.
     
    Last edited: Jul 11, 2019
    Adam likes this.
  7. Jul 11, 2019 at 1:38 PM
    #67
    markg

    markg New Member

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    Wow, you really mad and insulting for no reason.
    It's ok, I understand.
     
  8. Jul 21, 2019 at 3:52 AM
    #68
    Greybeard

    Greybeard [OP] Retiree in training

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    So this is what the subpanel looks like that's in the workshop. In the process of disconnecting all the old wires and running new wires in romex. (I believe squirrels in the attic in the past may be why there hasn't been power since I moved in) One for 5 outlets and one for the lights. Can the neutral and ground wires share the same bar like it is now? The wire at the bottom of the bar goes to an outside groundrod. I'm also currently just wanting to run one hot from the house to the subpanel.

    IMG_1437.jpg
     
    Last edited: Jul 21, 2019
  9. Jul 21, 2019 at 5:15 AM
    #69
    JohnLakeman

    JohnLakeman Burning Internet Daylight

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    Whoa...I bet that pic is going to start a new round of discussion! :eek:
     
    TomC843 likes this.
  10. Jul 21, 2019 at 5:39 AM
    #70
    markg

    markg New Member

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    No.
    Neutral and ground need to be separated. Also, the neutral need to be isolated, meaning it cannot touch any metal since the ground is bonded to the metal part of the box.

    From what I can tell by the picture, the panel has only 1 place for a hot so, only 1 hot wire will work. (a spare hot would be good)
    If using only 1 hot, #10 cu would be best (IMO) to handle voltage drop without knowing the exact load.
     
    bmf4069 likes this.
  11. Jul 21, 2019 at 5:40 AM
    #71
    Adam

    Adam New Member

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    We run 1000/500 MCM Oakanite copper underground on our 15KV system.
     
    BTBAKER[QUOTED] likes this.
  12. Jul 21, 2019 at 5:47 AM
    #72
    Greybeard

    Greybeard [OP] Retiree in training

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    Thanks. So add another bar for the neutral or just wire nut them together?
     
  13. Jul 21, 2019 at 5:50 AM
    #73
    markg

    markg New Member

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    Add a bar, using wire nuts on neutral is not the best method, but in this case with only 1 circuit will work.
     
    Last edited: Jul 21, 2019
  14. Jul 21, 2019 at 5:51 AM
    #74
    markg

    markg New Member

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    I think this is overkill for the installation being discussed.
     
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  15. Jul 21, 2019 at 7:41 AM
    #75
    TX-TRD1stGEN

    TX-TRD1stGEN Privileged

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    Please call an electrician and have it done right.
     
  16. Jul 21, 2019 at 9:52 AM
    #76
    Adam

    Adam New Member

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    lol. 250 it is
     
  17. Jul 22, 2019 at 7:27 AM
    #77
    bmf4069

    bmf4069 Yup, that's car parts in a dishwasher

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    I'm just wondering where the feed is coming from. You have 2 circuits in there, but no feed. Yes, separate the neutrals and grounds. You can buy a ground bar and use an 8-32 tap with the supplied screw.
     
  18. Jul 22, 2019 at 7:51 AM
    #78
    Geezer

    Geezer New Member

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    Another option is to replace the panel. A new panel with a separate ground and neutral would be pretty inexpensive and simple to install. You could then have two separate circuits in the shed if you think you'll use them.

    If all you want is a receptacle or two in the shed then you don't need the panel at all.
     

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