The main requirement for the connection of electrical conductors is the consistency of its quality over a long time. The required reliability can be provided by a special welding machine that creates a monolithic connection. However, a one-time job can be done with a homemade transformer for welding copper wires with your own hands.
Wago terminals
Many will probably say: What are Wago-type terminals for? It's the 21st century!
I answer right away: I installed these “super terminals” when replacing the wiring in the apartment, and when I turned on the electric kettle, such a terminal melted, I didn’t like it very much, I even disassembled one such terminal and saw that the contact there was very thin.
Therefore, sometimes the good old twist will be more reliable than all this modern “good”!
At one time, of course, there were good dead-end terminals - you insert a twist into it and tighten it with a screw - it turns out to be insulated and firmly fixed - an awesome thing, but now they have completely disappeared from sale. It's a shame
