electric cooktop

[frog4667]

thought I'd pass this along, since it was new to me
had a new electric cooktop installed, since the wiring was above my pay grade
I called in a licensed electrician
situation was as follow, 240v line from the breaker is two blacks and one bare ground
appliance has a black, red, white and ground
electrician connected as follows; black to black, black to red and the
white and ground from the appliance to the ground from the breaker
never saw that before, he explained since both blacks were AC one would be serving as the neutral, with current flowing back to the breaker to complete
the circuit, the white from the cooktop just needed to become part of the ground
nothing blew up and it works fine
I just learned something new
hope its of use

 

[Norcal]

thought I'd pass this along, since it was new to me
had a new electric cooktop installed, since the wiring was above my pay grade
I called in a licensed electrician
situation was as follow, 240v line from the breaker is two blacks and one bare ground
appliance has a black, red, white and ground
electrician connected as follows; black to black, black to red and the
white and ground from the appliance to the ground from the breaker
never saw that before, he explained since both blacks were AC one would be serving as the neutral, with current flowing back to the breaker to complete
the circuit, the white from the cooktop just needed to become part of the ground
nothing blew up and it works fine
I just learned something new
hope its of use

Your "electrician" is wrong, it is not permitted to use a grounding conductor as a neutral, it used to be permitted to ground the appliance to the neutral, now it's allowed only on existing installations, but if this is a new circuit, it does not comply with code, your only code compliant solutions are either run a new 4-wire feed to the cook top, or get a 240V only model, I have connected them(240V) in the past.

 

[wyliesdiesels]

thought I'd pass this along, since it was new to me
had a new electric cooktop installed, since the wiring was above my pay grade
I called in a licensed electrician
situation was as follow, 240v line from the breaker is two blacks and one bare ground
appliance has a black, red, white and ground
electrician connected as follows; black to black, black to red and the
white and ground from the appliance to the ground from the breaker
never saw that before, he explained since both blacks were AC one would be serving as the neutral, with current flowing back to the breaker to complete
the circuit, the white from the cooktop just needed to become part of the ground
nothing blew up and it works fine
I just learned something new
hope its of use

You actually just learned how to do something incorrectly.

I am in agreement with norcal.

The electrician screwed up.

If this is an existing circuit then the appliance frame should have a bonding strap connected to neutral terminal and the appliance becomes 3-wire.

The separate ground wire should not be hooked up.

Nothing blew up and it works until someone gets shocked...

 

[Zeke]

I find it unusual that a new member (9/18) uses a first post in the electrical forum to let us know that he "learned" something.

Could it be that he is trolling for posts that show the wiring is wrong so he can confront the so called licensed electrician? Maybe a reference to the appropriate section of the NEC is all he needs.

 

[protegeV]

I find it unusual that a new member (9/18) uses a first post in the electrical forum to let us know that he "learned" something.

Could it be that he is trolling for posts that show the wiring is wrong so he can confront the so called licensed electrician? Maybe a reference to the appropriate section of the NEC is all he needs.

Yeah, that is a curious first post to say the least....

 

[Toomanytools?]

Kind of like hey "I'm asking this for a friend". What ever the case seems to be wrong.

 

[Milton Shaw]

Cooktops have come with the white and ground connected with a copper "barrel" connector from the factory. I don't know if they still do but they did 10 years or so ago, and there are a lot of them connected that way around here in older houses.

 

[sberry]

What should he come here and ask? Ask away.

 

[Norcal]

What should he come here and ask? Ask away.

He has not posted since.

 

[sberry]

So what?

 

[Zeke]

He didn't ASK anything.

Here's the ubiquitous useless thread that grew legs.

 

[Norcal]

He didn't ASK anything.

Here's the ubiquitous useless thread that grew legs.

Have to agree with that. This thread needs to die.

 

[Evan(CA)]

Cooktops have come with the white and ground connected with a copper "barrel" connector from the factory. I don't know if they still do but they did 10 years or so ago, and there are a lot of them connected that way around here in older houses.

Exactly. It's common practice inside appliances for the manufacturers to bond the ground and neutral, however it is still technically a code violation the way your electrician did it.

 

[The Cobbler]

He has not posted since.

nor logged on...

 

[wyliesdiesels]

troll post anyone?

 

[wyliesdiesels]

Cooktops have come with the white and ground connected with a copper "barrel" connector from the factory. I don't know if they still do but they did 10 years or so ago, and there are a lot of them connected that way around here in older houses.

Exactly. It's common practice inside appliances for the manufacturers to bond the ground and neutral, however it is still technically a code violation the way your electrician did it.

A bonded neutral on an appliance is a different scenario than the OPs.

In the OPs situation, he has a grounding conductor bonded to neutral which creates shock potential since the grounding conductor of the circuit can and will carry neutral current.

 

[alfredeneuman]

A proper way to change a colored wire to a grounding wire is to strip the insulation completely where visible and leave the wire bare.

 

[strutaeng]

I have a full-on cook in the family, so I often cook stocks, soups and jams. So nothing can't beat the electric cooktop. Especially if I have a long, slow stock on the make and I need to go out for a couple of minutes. If you want to compare some electric cooktops, check out reviews online . I have GE Profile Electric Cooktop

This thread is bizarre!

 

[Norcal]

This thread is bizarre!

That thread you quoted was almost reported as spam by me.

 

[strutaeng]

That thread you quoted was almost reported as spam by me.

Too much of a coincidence! I have GE profile appliances myself, but damn, what a way to advertise them here!

 

[The Cobbler]

considering OP has not logged on since he posted this, 9/20/2018....

 

[SGKent]

we get the same thing in the VW bus forum. Someone posts and says hey I found this great buy on an XYZ. Didn't know it was so easy to put in... then we never hear from then again.

As to the thread. I am not an electrician but it was my understanding that the 4 wire insures that there is surplus capacity back to neutral and ground should both the supply wires short to ground. One doesn't want the neutral or ground burning up, or the surface of the appliance to have potential. Is that correct?