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Old 11-11-2012, 08:17 PM   #1
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New Electric Range, old 2W w/g receptacle


I must lower my existing 3 blade 50A 125/250v Leviton receptacle 1ft so my new range fits tight to wall. Existing wiring is 2 #6 (black, white) and 1 bare cu (#10?). The new range has wiring options for 3 wire. To move the receptacle, I bought 2' of 6-2 NM-B w/g, made up connections in old box, and terminated new wire to old "reused" receptacle in new box (now 1' lower). After reading many posts, I've not plugged 3wire range plug in, and I haven't yet turned breaker back on! Sort of concerned about bare neutral/ground. Am I ok?

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Old 11-11-2012, 08:26 PM   #2
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New Electric Range, old 2W w/g receptacle


does your new range require 240v?

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Old 11-11-2012, 08:34 PM   #3
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New Electric Range, old 2W w/g receptacle


you will have to install the bonding jumper on the stove...check the owners manual..there should be info on this....how did you make the connections to extend the line to the new receptacle???...this is more of a concern to me...
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Old 11-11-2012, 08:40 PM   #4
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New Electric Range, old 2W w/g receptacle


3 or 4 wire single phase 240/120 req'd
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Old 11-11-2012, 08:48 PM   #5
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New Electric Range, old 2W w/g receptacle


In old plug box, wire nutted black to new black, white to new white, bare cu to bare cu. The old box is metal. Any worries with the bare cu in there, or is it only ground? In new 2g plastic box, bare cu to top blade of receptacle, and black white don't matter...right?
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Old 11-11-2012, 08:54 PM   #6
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New Electric Range, old 2W w/g receptacle


the 3rd wire in newer systems is a separate ground path ....the bond will join the ground at the stove to the neutral and lead it back to ground at the panel...a separate path now joined...the nuetral is very very important here..in a stove/oven system it is in place for balancing the loads....again you must install the bonding strap someplace on the unit...simple just 1 or 2 srcews...and a metal strap...
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Old 11-11-2012, 09:02 PM   #7
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the old box if metal should of been bonded aswell....just attach ground wire with a ground clip or green grounding screw....there should be a small prethreaded hole for this screw...
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Old 11-11-2012, 09:07 PM   #8
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see how this is bonded simple..ground is looped under ground/bonding screw...you can use a slip on clip as well..
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Old 11-11-2012, 09:28 PM   #9
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thanks again, Bobka!
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Old 11-11-2012, 09:53 PM   #10
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New Electric Range, old 2W w/g receptacle


Sorry to rain on your project but you cannot use 6/2 wg nm-b for your range branch circuit extension and the existing 6/2 wg is also not code compliant.

Here is the applicable code section with the required exceptions to allow you to continue to use the existing branch circuit.

250.140 Frames of Ranges and Clothes Dryers.
Frames
of electric ranges, wall-mounted ovens, counter-mounted
cooking units, clothes dryers, and outlet or junction boxes
that are part of the circuit for these appliances shall be
connected to the equipment grounding conductor in the
manner specified by 250.134 or 250.138.


Exception: For existing branch-circuit installations only
where an equipment grounding conductor is not present in
the outlet or junction box, the frames of electric ranges,
wall-mounted ovens, counter-mounted cooking units,
clothes dryers, and outlet or junction boxes that are part of
the circuit for these appliances shall be permitted to be
connected to the grounded circuit conductor if all the following
conditions are met.
(1) The supply circuit is 120/240-volt, single-phase,
3-wire; or 208Y/120-volt derived from a 3-phase,
4-wire, wye-connected system.
(2) The grounded conductor is not smaller than 10 AWG
copper or 8 AWG aluminum.
(3) The grounded conductor is insulated, or the grounded
conductor is uninsulated and part of a Type SE serviceentrance
cable and the branch circuit originates at the
service equipment.
(4) Grounding contacts of receptacles furnished as part of
the equipment are bonded to the equipment
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Old 11-11-2012, 10:12 PM   #11
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New Electric Range, old 2W w/g receptacle


...stubie... he cant meet the exceptions....because he extended the circuit..and its a #6...got it...missed that

Last edited by Bobka; 11-11-2012 at 10:21 PM.
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Old 11-11-2012, 10:23 PM   #12
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New Electric Range, old 2W w/g receptacle


Quote:
Originally Posted by Bobka View Post
...stubie...he he cant meet the exceptions....because he extended the circuit..
That is part of it,. After the 1996 code cycle 4 wires were required for range branch circuits or for example 6/3 w grd not 6/2 w grd. His present branch circuit is 6/2 with possible 10 awg bare grd. NOT allowed to use a bare ground for neutral unless it meets the exception for an SE type service entrance cable.
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Old 11-11-2012, 10:27 PM   #13
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yes..he doesn't have se.. ...wow..tex you have no red wire in this line???..you can't use 6/2nm for a range....


Last edited by Bobka; 11-11-2012 at 10:37 PM.
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