6. The conductor is elliptical. Use a micrometer to rotate 90 degrees to measure its outer diameter. If it is unqualified, measure more and take the average value. Considering the factor that the conductor stranding will thicken the outer diameter of the wire, if it is still unqualified, then Use weighing or measuring DC resistance.
7. Too many colors of electronic wires bring great pressure to production and inventory. The purpose of color is to distinguish distribution and prevent wrong wiring (generally depends on engineering design).
8. Wire packaging should not be compared with precise requirements: such as 9.15 meters/20PCS, a total of 183 meters.
9. The outer diameter of the wire cannot be measured with a caliper, it is recommended to use a thickness gauge or direct projection measurement;
10. Complicated processing technology may cause damage to the wire;
11. Due to process variation (blade wear, the first dozens of rolls are OK, and the last few dozen rolls are NG)
Projector test outer diameter
