As recommended to lay wiring in the house
Professional electricians strongly advise using a copper wire in the electrical wiring, excellently suitable for almost any conditions of modern operation.
The importance of such a parameter as the cross section of the wire should be understood, since it depends on it what kind of power load can withstand this wire. Therefore, a professional electrician, if he is invited, will be able to very accurately calculate the optimal energy consumption taking into account the section of the wires used.