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    africk's Avatar
    africk Posts: 2, Reputation: 1
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    #1

    Oct 18, 2007, 06:09 PM
    Sharing the ground on a 240 outlet
    Hi. My first time asking a question but thanks in advance!

    I am adding some additional outlets to an existing fuse. This is for professional audio equipment, so I am trying to get the best grounding possible.

    There is a 240 outlet in the basement where I am adding these circuits. It is currently unused but I will be adding baseboard heat from this 240 run later this winter. This 240 run has two black wires, and a green wire. Research tells me that these are in fact two live wires and a ground. I have traced the ground all the way back to the service panel, and it is a single wire that goes uninterrupted from the negative pole to the grounding pin of the 240 outlet.

    Is it safe to snip and tie in to this ground wire for my new outlets?

    Hope that's enough info. Thanks in advance for any advice you can offer, please let me know if I need to provide more details.

    -adam-
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #2

    Oct 18, 2007, 06:17 PM
    Your new outlets must have a new feed, which will have it's own ground, that would be the best ground for your system.
    africk's Avatar
    africk Posts: 2, Reputation: 1
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    #3

    Oct 18, 2007, 06:22 PM
    Hi TK.

    Let me explain my situation and see what you think. I have a single outlet in the basement, that is a single outlet with a direct line I can trace to a single fuse in the service panel. So I basically just re-routed the power from this one outlet to my new ones.

    The existing outlet was grounded to the metal box. In the nearest junction box, from where I'm pulling my new runs, there is a ground wire tied to the box. I pulled ground for the new outlets from THAT ground wire.

    The new outlets show a decent ground when testing hot pins against ground, I'm just looking for the most reliable ground I can get.

    Thanks!
    tkrussell's Avatar
    tkrussell Posts: 9,659, Reputation: 725
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    #4

    Oct 19, 2007, 02:22 AM
    OK I see what you doing, that is fine.

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