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How To Fix Ungrounded Three Prong Outlets
One of the most common electrical defects that I find when inspecting old houses in Minneapolis and Saint Paul is ungrounded three prong outlets.  This happens when a standard three prong outlet is wired without the ground wire being connected.   Today I'll give a brief explanation of what the third prong is for, and I'll discuss a few ways to correct a mis-wired three prong outlet.  I didn't consult an attorney before writing this article, so I feel like I should add a disclaimer before giving any electrical how-to advice: Don't do any of this work if you're not qualified.  This is only an overview.
The third prong on an outlet is commonly referred to as ‘the ground', and it provides an alternate path for electricity that may stray from an appliance or product.  This is an important safety feature that has been required since 1962, which minimizes the risk of electric shock, and allows surge protectors to protect your electrical equipment, such as televisions, computers, stereos, and other devices.
The ideal way to repair an ungrounded three-prong outlet is to establish a continuous electrical path back to the main panel.  If the outlet is installed in a metal box, and that metal box ... more

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