Can the isolation transformer be made of copper-clad aluminum wire?

Now the price of copper wire and iron core is constantly increasing. Everyone is talking about using copper clad aluminum instead of copper wire for production. Have you succeeded? Some engineers have asked Gold-Stone electronics co.ltd a question?

The current carrying capacity of copper wire, copper clad aluminum wire, and aluminum wire of the same wire diameter is different. That is to say, under the premise of the same wire diameter and the same iron core, the maximum power of the transformers wound by wires of different materials is different.
 As we all know, an isolation transformer is a transformer with electrical isolation between the input winding and the output winding. Its structure, like other toroidal transformers, uses toroidal cores and copper wires. So can the isolation transformer be wound with copper-clad aluminum wire in addition to copper wire? our engineer answers that。

Generally speaking, most of the toroidal isolation transformers are made of copper wires. Of course, some manufacturers use copper-clad aluminum wires to save costs.

The copper clad aluminum wire contains a small amount of copper, and its performance is slightly different from that of the full copper wire, and the calorific value is higher than that of the full copper wire. Generally, copper-clad aluminum wires are used within 105W-1000W, and copper-clad aluminum wires are not recommended for those below 105W and above 1000W.
Because the wire diameter below 105W is too thin, it is easy to deform, and the performance will be affected. The current above 1000W is relatively large, and the copper-clad aluminum wire itself will heat up relatively high. If the current is too large, the temperature rise will be much higher.