What is the difference between bare copper wire and soft copper wire

1. In terms of manufacturing technology,
The biggest difference between soft and hard lines is that hard lines refer to lines that are single strands and relatively thick, while soft lines refer to lines with multiple strands forming a whole, as follows:
--Flexible wire: a wire made of multiple strands of conductive solid metal wires with a diameter of less than 1 mm.
--Hard wire: a single conductive solid metal conductor with a diameter of more than 1 mm.
Hard wires below 10 square meters are generally single-strand wires, and household lines generally do not exceed 6 square meters. As can be seen from the difficulty of the manufacturing process, the price of the same square is higher than that of the hard line.
2. In terms of mechanical properties,
--The flexible wire has weak tensile (longitudinal tensile) and strong fatigue resistance (transverse fracture resistance),
--Hard wire has strong tensile resistance (longitudinal tensile resistance) and weak fatigue resistance (transverse fracture resistance),
The difference in mechanical properties determines that these two wires are suitable for different situations,
The tensile resistance (longitudinal tensile resistance) of flexible copper wire is very weak, which determines that it is not suitable for scenarios such as buried walls, buried floors and buried pipes, because in these scenarios, we need to pull the pipe, which will cause some copper wires in the flexible copper wire to be pulled off in this process, burying hidden dangers for future use.
Soft copper wire has strong fatigue resistance (transverse fracture resistance), which determines that it is suitable for operation scenarios that require flexible connections, such as elevator cables, overhead crane cables, electric vehicle charging lines and mobile phone charging cables - in these application scenarios, the wire needs to be bent frequently to produce corresponding curvature changes, and the fatigue resistance of steel wire is very high.
Therefore, bare copper wire is suitable for permanent working places such as buried walls, buried grounds, and buried pipes. In these scenarios, it is used as a main line, and bare copper wire is not suitable for operating scenarios that require frequent bending.