How to connect aluminum and copper wires together so that it turns out reliably

Each owner should know that it is strictly forbidden to twist copper and aluminum wires together just like that. Therefore, the "classical" twisting is inapplicable here. Such a union is fraught with oxidation, which will lead to increased heating of the compound and subsequent combustion. The connection between copper and aluminum wires can end in a fire. Therefore, to solve this problem, you have to go to all sorts of tricks. Here are the main common methods from simple to complex.

1. Terminal blocks

You can use pads. | Photo: seaside-home.ru.

Perhaps the easiest and most obvious way to connect wires. Of course, you will not need an ordinary kalym block, but one that is suitable for working with wires made of different materials. All you need to do is insert and secure the desired wiring into the correct aluminum or copper terminal.

2. Specialized terminal blocks

The most famous today in the domestic market is the German manufacturer WAGO. However, in reality, you can safely take terminal blocks for connecting copper and aluminum from any other manufacturer. Fortunately, the assortment on the market is rather big. The essence of the method and the way of organizing the connection is not much different from the classic terminal block. Unless specialized terminal blocks are covered with a plastic case.

3. Aluminum-copper sleeve

Another very effective and relatively simple way to connect two different wires is to use an adapter sleeve. Here, as with the terminal blocks, it is important to ensure that each wire is inserted into the correct end of the sleeve. After the wires are inserted into the sleeve, it must be crimped using a suitable tool. Inside the sleeve there is a conductor insert made of neutral material.

4. Soldering

Dissimilar wires can be soldered together. However, in this case, a specialized flux must be used to help bond the copper and aluminum together safely. Such a tool is F-64 flux. First, it is applied to the aluminum wire. Next, the surface treated with flux is warmed up with a soldering iron with ordinary solder. Further, the entire procedure described is repeated for a copper wire. In the future, two finished wires are laid side by side and heated with a soldering iron, a very strong and safe soldering is obtained.

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5. Bolt and nut

Finally, you can make a makeshift adapter for dissimilar wires. This requires a bolt, nut and three washers. The first washer is thrown onto the bolt, after which one wire is screwed onto the trunk of the hardware. A second washer is thrown over the wrap and pressed tightly. The second wire is screwed onto the bolt. Then another washer is thrown, after which the whole structure is clamped with a nut. Everything must be done so that the wires do not protrude beyond the washers and do not touch each other.

If you want to know even more useful things, then you should definitely read about 10 variantshow to organize cozy outdoor lighting in the garden.
A source: https://novate.ru/blogs/210821/60252/

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