petersonra
Senior Member
- Location
- Northern illinois
- Occupation
- Semi-retired engineer
Re: 3 wire range circuit
I thought you had to use UF cable.
I thought you had to use UF cable.
3 wire range circuit
- Thread starter gserve
- Start date
- Status
hurk27
Senior Member
- Location
- Portage, Indiana NEC: 2008
Re: 3 wire range circuit
This is out of the 24 CFR 3280.800 from HUD
remember it is based upon the "1993" NEC
250.140 allows "only" existing branch-circuits to use the grounded circuit conductor to ground the appliance if the 4 conditions are met.
Otherwise you have to follow the requirments in 250.134 and 250.138
This is out of the 24 CFR 3280.800 from HUD
remember it is based upon the "1993" NEC
550.15(E) still has those same words
250.140 allows "only" existing branch-circuits to use the grounded circuit conductor to ground the appliance if the 4 conditions are met.
Otherwise you have to follow the requirments in 250.134 and 250.138
shortcircuit2
Senior Member
- Location
- South of Bawstin
Re: 3 wire range circuit
Hi...my name is shortcircuit2...this is my 1st post on this discussion forum. I'll take a stab at this...(I followed Electricmanscott here)
Yes this was a long awaited change...50 years or so.
An article I read dated the allowed use of type SE for connection of electric ranges and dryers(in other than mobil homes) back to World WarII. We needed the metals for the war effort.
I don't believe that the "body count" was high as you may think or the code making panels would have changed this requirement long before 1996.
250.140 currently allows grounding of the replacement range,wall oven, counter mounted cooking appliance, dryer and the receptical outlet(not in mobil homes) where exsisting type SE cable is used for the branch circuit. The appliance must be grounded through the connection of the SE neutral conductor and the frame of the appliance.
I don't believe that the use of the grounded conductor in any cable was ever allowed for the grounding of a range or dryer(or anything else) in mobil homes. See 550.16
shortcircuit2
Hi...my name is shortcircuit2...this is my 1st post on this discussion forum. I'll take a stab at this...(I followed Electricmanscott here)
Yes this was a long awaited change...50 years or so.
An article I read dated the allowed use of type SE for connection of electric ranges and dryers(in other than mobil homes) back to World WarII. We needed the metals for the war effort.
I don't believe that the "body count" was high as you may think or the code making panels would have changed this requirement long before 1996.
250.140 currently allows grounding of the replacement range,wall oven, counter mounted cooking appliance, dryer and the receptical outlet(not in mobil homes) where exsisting type SE cable is used for the branch circuit. The appliance must be grounded through the connection of the SE neutral conductor and the frame of the appliance.
I don't believe that the use of the grounded conductor in any cable was ever allowed for the grounding of a range or dryer(or anything else) in mobil homes. See 550.16
shortcircuit2
allenwayne
Senior Member
Re: 3 wire range circuit
Wasn`t to long ago that dryers/ranges came shipped with 3 wire whips.Now they come with no whip installed and the vendor supplies a 4 wire whip.Ok who is responsible for installing this unattached whip
Oh and yes there are only 3 terminals to attach to in the range
Wasn`t to long ago that dryers/ranges came shipped with 3 wire whips.Now they come with no whip installed and the vendor supplies a 4 wire whip.Ok who is responsible for installing this unattached whip
Oh and yes there are only 3 terminals to attach to in the range Re: 3 wire range circuit
The whips are back. Recently one of my men had remove and replace an existing range (wired with 8/3 nm cable, 2 pole 30 amp 240 volt breaker)with a new 5.3kw electric range (major name brand) that had an attached metalic whip that contained no. 14 gauge wires. When he called the manufacturer of this unit, regarding the size and safety of the provided whip he was told that it was safe and to go ahead with the installation. (no installation manual, that stating the rating of the branch circuit conductors or ocpd for this unit was included with the installation instructions.The manufacturerdid mention that he had received many calls with the same question.
Anyone else come across these new units?
We did request something in writing.
thanks
The whips are back. Recently one of my men had remove and replace an existing range (wired with 8/3 nm cable, 2 pole 30 amp 240 volt breaker)with a new 5.3kw electric range (major name brand) that had an attached metalic whip that contained no. 14 gauge wires. When he called the manufacturer of this unit, regarding the size and safety of the provided whip he was told that it was safe and to go ahead with the installation. (no installation manual, that stating the rating of the branch circuit conductors or ocpd for this unit was included with the installation instructions.The manufacturerdid mention that he had received many calls with the same question.
Anyone else come across these new units?
We did request something in writing.
thanks
shortcircuit2
Senior Member
- Location
- South of Bawstin
Re: 3 wire range circuit
1madison... 210.19(A)(3) exception no.1 allows tap conductors for cooking appliances , but says that they shall have an ampacity of not less than 20.
I too, would question the #14 gauge wiring feeding the appliance.
shortcircuit2
1madison... 210.19(A)(3) exception no.1 allows tap conductors for cooking appliances , but says that they shall have an ampacity of not less than 20.
I too, would question the #14 gauge wiring feeding the appliance.
shortcircuit2
- Location
- Massachusetts
Re: 3 wire range circuit
14 AWG is rated 20 to 25 amps per Table 310.16.
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