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Pix: [email protected] Based on NBR 5410, I try to pass on in these two videos, as much information as possible regarding power and amperage calculations to determine the type of supply in a residence as well as the sizing of circuit breakers, wires and conduits, obviously it is impossible to try to compress the entire rule in two videos, but I believe that with this basis, together with the personal interest of each one, more information can be aggregated through research on websites, as well as on channels here on YouTube focused on this topic. Below I leave a list of websites and channels that can help in enriching knowledge. http://br.prysmiangroup.com/br/files/... http://www.saladaeletrica.com.br/proj... https://pt.scribd.com/doc/10231125/39... http://docente.ifrn.edu.br/odailsonca... http://www.webcalc.com.br/frame.asp?p... http://panelada.blogspot.com.br/2012/... http://www.sabereletrica.com.br/aterr... http://www.etelg.com.br/downloads/ele...