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Old 12-17-2008, 08:48 AM   #16
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220 plugs in living room?


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Originally Posted by InPhase277 View Post
It is likely a 6-20, but he said it was odd. Most people have seen a 6-20.

You have never seen a crow's foot 20 A used for a window unit? I have replaced quite a few. Apparently there was a phase in the 60's and 70's where some A/Cs had 125/250 V ungrounded plugs. I don't know why, but I've seen enough 10-20s installed to know that it happened quite often.

I always end up replacing them with either a 5-20 or 6-20
Do you just use the neutral for ground when you replace the outlets?

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Old 12-17-2008, 09:35 AM   #17
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220 plugs in living room?


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Do you just use the neutral for ground when you replace the outlets?
Sometimes they are grounded, just not the receptacle. But if not, and I change to a 5-20, then I use the red as ground and white as neutral. If 6-20, then white as ground.

Most are wired with 12-3, with and without a ground. I have seen maybe two that were wired with 12-2 w/g, with the ground used as the neutral.
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Old 12-17-2008, 10:59 AM   #18
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220 plugs in living room?


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Originally Posted by InPhase277 View Post
Sometimes they are grounded, just not the receptacle. But if not, and I change to a 5-20, then I use the red as ground and white as neutral. If 6-20, then white as ground.

Most are wired with 12-3, with and without a ground. I have seen maybe two that were wired with 12-2 w/g, with the ground used as the neutral.

What if they wired with bx with a bonding strip, couldn't you use the jacket as an egc?

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