#### DelightedInYahweh

##### Member

- Location
- Lake Charles, La

I have a question on my mind and have gone through the theory that is applicable, but just want to check myself to make sure my thinking is correct.

A 3 wire single phase circuit that is

Now let's say a two wire circuit is pulled from the panel into a box. From this two wire circuit a three wire circuit is created. Since the origination of these two wires is from a single phase would it not be proper to deduce that the current on the neutral of this circuit will now be additive. Thus if this were a 20amp protected circuit and each ungrounded conductor from the box were connected to a 10 amp load that would make the neutral now carry a 20 amp load. My thought goes further in that if each ungrounded conductor is now connected to a 15amp load that puts 30 amps on the conductor and we have now exceeded the ampere rating of this conductor in theory.

Are my thoughts correct and if this is correct in theory is this how an application of this sort would play out in our everyday application purposes?

Thanks for any insight that might be able to be given.

A 3 wire single phase circuit that is

**will carry a neutral load of zero. Each wire MUST be from a different phase otherwise the current is additive due to the same polarities.**__balanced__Now let's say a two wire circuit is pulled from the panel into a box. From this two wire circuit a three wire circuit is created. Since the origination of these two wires is from a single phase would it not be proper to deduce that the current on the neutral of this circuit will now be additive. Thus if this were a 20amp protected circuit and each ungrounded conductor from the box were connected to a 10 amp load that would make the neutral now carry a 20 amp load. My thought goes further in that if each ungrounded conductor is now connected to a 15amp load that puts 30 amps on the conductor and we have now exceeded the ampere rating of this conductor in theory.

Are my thoughts correct and if this is correct in theory is this how an application of this sort would play out in our everyday application purposes?

Thanks for any insight that might be able to be given.

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