Troubleshooting Neutral Cables in Electrical Circuits

[ffp]

Last weekend I was in my friend house to change an outlet from 127V to 220V. This means changing the neutral terminal from the bar inside the electrical board (dont know if that's the right rem in english) into a phase. However, I couldn't identify which neutral cable was from the circuit I wanted to change, since 4 different cables had continuity with the outlet.
Also, when I removed all the neutral cables from the bar, including the one that comes from the concessionary, his house outlets were still working.

How is that possible? Sorry if I couldn't be clear, english is not my native idiom. I can explain further if needed.

 

[DaveE]

Last weekend I was in my friend house to change an outlet from 127V to 220V. This means changing the neutral terminal from the bar inside the electrical board (dont know if that's the right rem in english) into a phase. However, I couldn't identify which neutral cable was from the circuit I wanted to change, since 4 different cables had continuity with the outlet.
Also, when I removed all the neutral cables from the bar, including the one that comes from the concessionary, his house outlets were still working.

How is that possible? Sorry if I couldn't be clear, english is not my native idiom. I can explain further if needed.

You need to hire a qualified electrician. If you have to ask this question, you don't have the knowledge required to insure safety. Some things in this world just have to be done right. This doesn't sound like a DIY project.

I have no doubt that someone here will answer your question, but it won't be me. I don't want any part of this.

 

[fresh_42]

You need to hire a qualified electrician.

I'm afraid this is the best recommendation we can give. Electricity is one of the major causes for fire in households. And this is true for 110V as it is for 220V. Please consult a local expert, and not strangers on the internet.

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