How to link low voltage cables?

Generally, connecting pipes are used for connection, and are divided into two categories: copper and aluminum according to the material. A single material only needs to use copper or aluminum, and the connection needs to be twice that of a single wire. If the cable material is mixed, it is necessary to use excessive copper-aluminum wiring tubes or bolts to fasten, and use steel wire ropes to lock at three angles. The former must be firmly pressed with a pressure clamp, sleeved in a heat shrinkable tube, and the branch insulation of the cable must be treated and then heat shrinked. The latter is more troublesome due to the use of three-corner steel wire rope for locking, and it is more troublesome to handle the excessively large wire connector. In addition, there is also a high-pressure self-adhesive matching treatment that is more convenient.