3 wire range outlet

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shelco

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Does anyone know when the code started requiring the new installation range outlets to be 4 wire?

And what code section addresses this?
For some reason I can't seem to find it.
Thanks
 
Re: 3 wire range outlet

The oldest code book I have access to is the 1978 NEC. Section 250-60 Frames of Ranges and Clothes Dryers. Has the basic same requirements as the sections that are in the code book today.

Chris
 
Re: 3 wire range outlet

Don is correct.

The 96 code makes the change to only allowing the grounded conductor to bond the frame in existing installations.

In my prior post I failed to see "in existing installations" of the 2002 code. (that's what I get for reading to fast :eek: )

The 78 code allows the use of the grounded conductor for bonding. The conditions of use are the same as section 250.140 of the 2002 code.

Chris
 
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