The most reliable wire connection without a soldering iron

Not everyone has a soldering iron at home, but if there is a need to reliably connect the wires, you need to look for alternatives. The article describes several ways to do this.

Lighter

A regular gas lighter, heat shrink tube and rosin solder are all items that are necessary for a reliable connection of wires. A 5 cm cut-off shrink tube is taken and put on one wire. A clerical knife strips 3 cm of insulation from each wire. The ends are twisted together. After the end of the solder heats up with a lighter before reaching the flame. The wires are sealed with a hot solder, its metal spreads along a twist and perfectly covers the bare area. A heat shrink tube is put on the finished joint and warmed up in the flame of the lighter.

Threaded connection

If performed correctly, the connection with a nut or screw will be reliable. The length of the stripped insulation is equal to the four diameters of the selected screw. When oxidizing the wires, they are first cleaned with sandpaper. Further rings are formed. On the screw in the following order are strung: spring washer, plain washer, ring of one wire, plain washer and ring of another wire, washer and nut. Turn the screw until the spring washer straightens.

If both wires are of the same metal, then do not lay the washer between the rings. Or if you combine an aluminum wire with a copper wire having a tinned end. When using stranded copper conductors, they are coated with solder.

Crimping

Crimping is an inseparable method of connecting wires. It is used for both single-core and multi-core wires. The required length of the tube is taken, depending on the applied wires, copper or aluminum. Cores are inserted into it, the structure is pressed through the middle with special pliers or clamps.

Core wires must fit tightly into the tube, not have twists. After crimping, the connection must be closed with insulation. Special polyethylene caps are available for sale. They can be worn before exposure to press pliers, so the connection will be more reliable.

Terminal connection

A modern and convenient way to connect wires, copper and aluminum, is to use terminal blocks. The device itself does not conduct current, but has special contact plates inside. There are two types - screw and clamping. The latter are more reliable, since the wires are not damaged by the compression plates. At the same time, the bare ends are pushed into the terminal strip and, with little effort, are either pressed or twisted. In the latter case, it is important not to damage the wires with screws.