In order that you would be able to make installation of electrical wiring, you will need to immediately make the appropriate measurements, and only then proceed to further work. It must be remembered that the cross section of the cable will have KSPV and what material it will be made of, will determine the smooth operation of all electrical appliances in your home.
The first thing you will need to do is to determine what loads will be exposed to your electrical network, and only then select the cable with the appropriate cross section. As a rule, the starting point is taken as 200 W, but as soon as there are any deviations, it can cause undesirable fluctuations.
In order to facilitate your work in calculating the cable, you can use the special table. Once you know the amount of current and the type of cable you need, you can figure out how many meters of cable you will need for the wiring. It is best to add to the figures obtained 10 meters to spare, as sometimes there are force majeure circumstances that you have not considered.