New 220 4 wire stove and old 220 three wire plug

Discussion in 'Electrical Forum discussion & Blog' started by Wardsweb, Mar 17, 2008.

  1. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    996
    Location:
    NY State, USA
    Exactly. And the GROUNDED circuit conductor is the neutral. The "ground" is the grounding conductor.
    Big, BIG difference.
  2. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,540
    Location:
    North Carolina
    Yea what Petey said and the green conductor can not be used here, period
  3. Wardsweb

    Wardsweb New Member

    Messages:
    9
    Location:
    San Antonio TX
    Followup: the old wiring was removed. Good thing too, as it was aluminum. Nice new correct wire run and new recepticle installed. Like my father always told me, "there is only one way to do it...the right way."
  4. Lotus

    Lotus DIY Junior Member

    Messages:
    1
    Location:
    Portland OR
    thanks for the clarification

    good advice - my search got to this forum because I replaced an oven - both the new and old units had the neutral "white" cable bundled with the grounding "bare copper" cable running about 10 feet to the service box - I had heard that this was out of code and that I should change the wiring to a 4-wire set from the service box - but I had also heard it was a minor, non-critical issue

    after reading this, i thought just rewiring it as before would probably be OK - I consulted with an electronics engineer friend who confirmed that, yes, sending an energized neutral into the grounding path is only very slightly risky - he did the math and said we should wire it up, apply power and test the unit with a voltmeter - sure enough, voltage between the oven frame and the kitchen sink is .7 volts
  5. jwelectric

    jwelectric Electrical Contractor/Instructor

    Messages:
    2,540
    Location:
    North Carolina

    And how much current or amperage was on this path?

    Remember it is not voltage that does harm but amperage that kills!!!!!!

    Find yourself a new electronics friend before this one gets you killed.
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