The advantages of single core cable are small cross-sectional area ratio, not easy to air oxidation, short-circuit capacity impact resistance and long service life. The defect of single core wire is that the wire is relatively hard, and it is inconvenient to pull the wire in some areas, so it is difficult to straighten after bending, and it is very easy to damage the wire after continuous bending. Advantages of multi-core cable multi-core cable refers to the cable with a copper core cable with an upper insulating layer, which can reduce the skin effect of the cable and reduce the route loss.

The defects of multi-core cable are poor compressive strength, very easy to break, poor surge current resistance and inconvenient forming. Single core cable or multi-core cable is the best transmission line with the same cross-sectional area. The cost of single copper core cable is more cost-effective than multi copper core cable, while the cost of multi copper core cable is slightly higher.

When installing and conduit, single copper core cable looks a little hard, while multi copper core cable should be softer and stronger. After installation, single core and multi-core are similar in specific applications.

The difference between multi-core cable and single core cable in terms of circuit capacity, the rated current capacity of single core cable is greater than that of three core cable with the same section; In terms of insulation performance, both single core and three core cables need to meet national standards. On the premise of meeting national standards, a certain safety margin shall be reserved, which can be understood as qualified insulation performance without difference;

In terms of cable use, the heat dissipation performance of single core cable is greater than that of three core cable (the same type of cable). In addition, the rated current carrying capacity of single core cable with the same section is "three core cable". Under the same load or short circuit, the heating capacity of single core cable is less than that of three core cable, which is safer to use;

In terms of cable laying, single core cable laying is more convenient and bending is easier, but it is more difficult to lay single core cable over a long distance than three core cable;

In terms of cable head installation, single core cable head is easier to install and easy to separate;

Multicore cable

Multi core cable refers to a cable with more than one insulated core. Cable plays an important role in electronic products and electronic systems. It is a key link connecting various functions of electronic products. It is widely used in aerospace, naval warships and other fields.

single-core cable

Single core means that there is only one conductor in an insulating layer. When the voltage exceeds 35kV, most single core cables are used. The relationship between its core and metal shielding layer can be regarded as the relationship between coil and iron core in the primary winding of a transformer. When the core of a single core cable passes through the current, there will be an aluminum package or metal shielding layer for the cross chain of magnetic lines, resulting in induced voltage at both ends.