Theory question about neutrals in circuits

[berkeman]

@anorlunda I have provided al the information about my country electrical system: voltage, transformer secondary connection (Y with grounded neutral). If you or anyone need more information about it, I can provide.
There is no need to bring any country details, if there is something that is needed to know I can provide that information so we can work to understand the theory behind the issue.

In the US, the NEC (National Electrical Code) is the law. Can you please provide a link to the National Electrical Code laws in your country? Thank you.

https://en.wikipedia.org/wiki/National_Electrical_Code

 

[ffp]

In the US, the NEC (National Electrical Code) is the law. Can you please provide a link to the National Electrical Code laws in your country? Thank you.

https://en.wikipedia.org/wiki/National_Electrical_Code

Hm, I live in Brasil. We don't have a single document with all the laws and norms of electric system. We have a federal company called Aneel, that regulates almost everything regarding electric systems. If you tell me what exactly you want to know I can search and post what you need to know.

However I feel that your question lies in a worry that I might be doing something illegal why else would you want to know laws instead of characteristics of the sytem? Is that it?

 

[berkeman]

Hm, I live in Brasil. We don't have a single document with all the laws and norms of electric system. We have a federal company called Aneel, that regulates almost everything regarding electric systems. If you tell me what exactly you want to know I can search and post what you need to know.

However I feel that your question lies in a worry that I might be doing something illegal why else would you want to know laws instead of characteristics of the sytem? Is that it?

In the US, depending on the county, we need to file a permit application with the local building department when we want to make changes to the electrical system in houses or businesses. This is for a good reason -- it is to be sure that changes to the electrical distribution panels or other major upgrades are safe, and comply with NEC standards.

I once contracted with a company to install an all-house fan in my home, and they tried to attach that high-power device to an existing circuit and breaker. When I saw that, I pointed out that the NEC required that they pull a local permit and install a new breaker for that circuit, and they finally complied.

It is similar to the local US building code requirement that you pull a permit and have inspections when you modify load bearing walls. When you make additions to the electrical distribution in a home or modify load bearing walls, you may endanger other people's lives if you do it even a little wrong.

I'm not sure that trying to justify this discussion based on your claim that you are in a 3rd world country that does not require safety standards and inspections and permits is valid. Thread closed again. Lordy.