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Joined: Aug 2001
Posts: 545
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For new installations are you using 4 wire 4 prong plugs, or 3 wire 3 prong? I've seen dryer recepts with the neutral and ground tied together on a 3 prong plug.
The Golden Rule - "The man with the gold makes the rule"
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Joined: Aug 2002
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Joined: Oct 2000
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Al,
New installations must be 4 wire. see 250.142(B)
Bill
Bill
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Joined: Apr 2001
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We have been doing 4 wire dryer and range plugs since the '99 revision, I believe.
The owner is usually PO'ed because then we also have to install a new tail on the appliance.
FWIW GJ
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Joined: Aug 2001
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I assume this includes range plugs too. Kinda strange that in the years past they were using the ground wire for a current carring conductor for the 120v clocks and timers in these appliances.
The Golden Rule - "The man with the gold makes the rule"
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Joined: Apr 2002
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aldav53,
The equipment ground conductor has never been permitted to be used as the neutral for range and dryer receptacles. When using a 3-wire receptacle the neutral is used to ground the frame of the range or dryer.
Curt
Curt Swartz
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In my area normal practice was 10/2 RX for dryers 6/2 AL SE for stoves, the bare was connected to the outlet box as ground and to center terminal of the plug.
For myself I am glad for the change to 4W plugs, if for nothing else but consistency.
Bob Badger Construction & Maintenance Electrician Massachusetts
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Joined: Aug 2001
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Yes the 10-2 wire bare were used as grounds but we all know dryers can have 120v timers etc.
The Golden Rule - "The man with the gold makes the rule"
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Joined: Oct 2000
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Was 10-2 w/gr ever legal for Dryers?
I thought only SE cable or 10/3 Wo/gr were legit. No books on me at the moment though. Anybody?
Bill
Bill
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Bill,
I don't believe so. The bare wire in type SE cable is rated for use as a neutral conductor so it was approved for this use. That was the point I was trying to make with my previous post. I have read many comments in forums about why the 4th (neutral) wire is now required to be installed for range and dryer receptacles. A neutral wire has always been required but now a 4th wire (equipment ground) is also required.
[This message has been edited by caselec (edited 05-09-2003).]
Curt Swartz
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