1. Strip the wire with a wire stripper, and insert the wire stripper into the hole suitable for the wire size according to the wire thickness. 2. Twist the stripped two multi-strand threads into one thread respectively, and wrap the two threads together and make a circle. 3. Wrap one wire around another wire, and then wrap another wire. After two butted multi-strand wires are intertwined, wrap the joint with electrical tape.
What is a multi-core wire?
1. The main difference between single-core and multi-core is the different flexibility of wires. The two ends of a single-core cable are directly grounded, and the metal shielding layer of the cable may also produce a circulation that can reach the current carrying capacity of the cable, wasting electric energy and causing losses. Multicore wires are generally three-core wires, because the sum of currents flowing through the three cores is zero when the cable is running, and there is basically no induced voltage at both ends of the metal shielding layer of the cable.
2. The advantages of single-core copper wire are high tensile strength, not easy to mildew, strong surge current resistance and convenient molding. When the wire core of a single-core cable is electrified, the metal shielding layer will generate induced current, and the two ends of the cable will generate induced voltage. The induced voltage is proportional to the length of the cable and the current flowing through the conductor. When short circuit fault, lightning impulse or operating overvoltage occurs in cable lines, higher induced voltage will be formed on the shielding layer.
3. The advantages of multi-core copper wire are good flexibility, good heat dissipation, good skin resistance and good fracture resistance. The skin effect is obvious when the conductor passes through high frequency current, but it can be ignored for power frequency skin effect. The current carrying capacity of power frequency power cables and single-core cables with the same cross section is greater than that of multi-core cables.