Schematic diagram of multi-strand wire connection How to connect multi-strand copper wire? Is there a schematic diagram?

Bend the branch core wire 90 degrees and parallel to the main core wire, and then turn the end of the wire back and wrap it tightly around the core wire.

Multi-strand flexible cable has greater current carrying capacity. Because of the "skin effect" of alternating current, the current does not flow in the whole cross-section, but conducts along the outer surface, so there is no linear relationship, that is, it cannot be based on the cross-sectional area.

Copper is a metal with purple luster, and its density is 8.92g/cm3. Melting point1083.4 0.2℃, boiling point 2567℃. It has good ductility. Good thermal and electrical conductivity.

Extended data:

General load (can also be used as electrical appliances, such as lamps, refrigerators, etc. ) is divided into two types, one is resistive load and the other is inductive load. Calculation formula of resistive load: P=UI calculation formula of fluorescent lamp load: p = uicos, where the power factor of fluorescent lamp load.

Different inductive loads have different power factors, so the power factor cosф Ф can be 0.8 when calculating household appliances uniformly. That is, if the total power of all household appliances is 6000 watts, the maximum current is I = p/ucos Ф = 6000/220 * 0.8 = 34 (a).

But in general, it is impossible to use electrical appliances at home at the same time, so add a common coefficient, which is generally 0.5. So the above calculation should be rewritten as I = p * NUMBER/ucos Ф = 6000 * 0.5/220 * 0.8 =17 (a), that is, the total current value of this family is 17A. Then the main brake air switch cannot use 16A, but should be greater than 17A.

Baidu Encyclopedia-Ampacity