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Why do notebook manufactures use 2-prong vs. 3-prong power

Discussion in 'Laptops' started by Me, Sep 22, 2003.

  1. Me

    Me Guest

    can anybody say why some notebook manufacturers use two prong (Toshiba) and
    others use three prong (Compaq)?
    Me, Sep 22, 2003
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  2. Me

    Chris Hill Guest

    The third prong is for case ground for safety. Since the case is
    plastic and can't carry electricity, such grounding is unnecessary.
    Chris Hill, Sep 25, 2003
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