Is it possible to directly twist the aluminum and copper wire.

When carrying out repair and construction works It is not always produced complete replacement of electrical wiring.

Most often it is limited a compound or a build-up wiring.

And everything is goodBut all wiring We did before using aluminum wires, but now largely copper.

Therefore, quite often the question arises: "Can I just twist the wires on the line? And what are the consequences? ".

The answer to this question, we consider below.

Connect the aluminum and copper wire with a simple twist difficult call reliable and durable.

The fact is that These metals have different electrochemical potential.

therefore while passing an electric current in place of aluminum compound with copper begins electrochemical reaction.

Not the least role in this process plays and humidity. The higher it is, the faster will be the reaction.

The result is a corrosion of metals(Especially aluminum), a compound of the contacts is weakened and twisting begins to bask.

Generally aluminumin this connection is an the weakest link.

He eventually oxidizes worse begins to conduct electrical current and the resistance between the conductors increases, which also leads to heat lay.

Ultimately, these processes will sooner or later lead to a short circuit and fire.

Therefore, to make a direct stranding aluminum with copper better not.

Especially because there are safer ways of their connection, from ordinary bolt and nut and ending WAGO terminals.

The latter, incidentally, very convenient to use and can be used several times. But unfortunately, They have a relatively high price.