Traditional Culture Encyclopedia - Photography and portraiture - Schematic diagram of multi-strand wire connection How to connect multi-strand copper wire? Is there a schematic diagram?
Schematic diagram of multi-strand wire connection How to connect multi-strand copper wire? Is there a schematic diagram?
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.
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