The copper conductor consists of a single copper wire or multiple copper wires, described as follows:
Introduction to various characteristics of copper wire
Conductivity – Referred to as 100% conductivity, the resistance at 20C, 1/58ohm (0.017241ohm), based on a standard annealed copper wire of 1m length and 1mm2 cross-section. The higher the resistance, the lower the conductivity, and the two are inversely proportional.
Bending resistance – one end of a solid line is fixed and the other end is vertically downward, bending back and forth 180 degrees and cutting. The more bending times, the stronger bending resistance.
Breaking Force – The maximum load or force applied to a specimen during a tensile test to break it.
Tensile Strength The breaking force per unit area that causes the specimen to break in a tensile test.
Elongation – The ratio of the length of the specimen stretched to failure at a specified standard distance to the original length. The conductor has different impedance according to the temperature. Generally, 20 or 25 is the standard. The higher the temperature is, the higher the impedance is.