Firstly, analyze their advantages and disadvantages:
1, the advantages of single-core copper wire are: strong tensile strength, not easy to mildew, strong surge current resistance, convenient molding and so on. Disadvantages are: poor flexibility, poor fracture resistance, poor skin resistance and poor heat dissipation.
2. Advantages of multi-core copper wire: good flexibility, good heat dissipation, good skin resistance and good fracture resistance. Disadvantages are: poor tensile strength, easy to mold, poor surge current resistance, and inconvenient molding.
By analyzing their advantages and disadvantages, we can see that the advantages of one party are basically the disadvantages of the other. Therefore, in electrical engineering, we should pay attention to foster strengths and avoid weaknesses. Make the design reasonable.
1. Single-core copper wire is used in underground laying, overhead, jumper setting of power box and other occasions.
2. Multicore copper wire is applied to household appliances connected to power lines, connections between circuit boards and active workplaces.
Without specific application environment and specific application object, it is meaningless to discuss which copper wire to use.