bro, im a sparky bye trade, and its fucking dangerous to try "teach people " people are fucking idiots , and im sure you don't have a qualifications in this sector, this is very very basic electrical knowledge, and people can be killed easyly, also the saftey parts, earthing ect may be none in your country, but they are high in modern countries , there is a reason it takes 4 years to learn the trade, people will die if things are done incorectly..