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Old 03-04-2010, 05:16 PM   #1
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210V outlet with no ground, hot and netural reversed


Found a 110Voutlet with no ground, hot and netural reversed.
It has been this way for several years. What kind of damage does this cause?

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Last edited by Maximo; 03-05-2010 at 05:25 PM.
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Old 03-04-2010, 05:55 PM   #2
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210V outlet with no ground, hot and netural reversed


Do you mean a 110V outlet? There are no 210 volt outlets in the U.S. that I am aware of. If you are looking at a 220 volt outlet, there may not be a neutral, there could be two hots only. You should verify the voltage on the outlet, then repost.

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Old 03-04-2010, 11:43 PM   #3
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210V outlet with no ground, hot and netural reversed


A 210 volt (208 volt) circuit might be found with a receptacle near a window for an air conditioner. The receptacle should have a different prong arrangement compard with a 110 (120) volt circuit so you don't accidentally plug a 120 volt light or appliance in. Putting a polarity/reverse tester in a 208 (or 240 volt) receptacle gives a readout that does not mean anything.
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Old 03-05-2010, 09:22 AM   #4
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210V outlet with no ground, hot and netural reversed


Quote:
Originally Posted by Maximo View Post
Found a 210V outlet with no ground, hot and netural reversed.
It has been this way for several years. What kind of damage does this cause?
The U.S. Power grid supplies AC power (alternating current), which basically means the current traveling through the wire isn't actually going anywhere, it really just goes back-n-forth.

By having the hot and netural reversed means the current through the device has been going forth-n-back... which is a tounge-n-check way of saying that it doesn't matter to the device which way the hot and netural are connected.

Now from a safety stand point, it's potentially a HUGE difference. The reason we have polarized plugs today is so that the manufacturers of electrical equipment will know which wire is the hot and which is the neutral so that they can wire their devices in as safe a maner as possible.

As an example, think of the typical lamp. The light bulb is connected to the "hot" on the bottom of the bulb while the threads of the bulb are connected to the neutral. The idea here is that if you are changing a light bulb and the lamp hasn't been turned off, you don't get shocked should you accidently touch the threads of the bulb before the bulb has been completely unscrewed from the base.
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Maximo (03-05-2010)
Old 03-05-2010, 11:15 AM   #5
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210V outlet with no ground, hot and netural reversed


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Originally Posted by Daniel Holzman View Post
Do you mean a 110V outlet? There are no 210 volt outlets in the U.S. that I am aware of. If you are looking at a 220 volt outlet, there may not be a neutral, there could be two hots only. You should verify the voltage on the outlet, then repost.
You right, I stated it wrong. Its is 110V on a 20A breaker. Yes, it is 110V.
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