Hard copper wire: cold processed by stretching, has a high tensile strength, suitable for overhead transmission cables, distribution lines and building conductors.

  Soft copper wire: hard copper wire heated to remove the residual stress produced by cold processing and become, rich in flexibility and bending, and has a high conductivity, used in the manufacture of communications and power cable conductors, electrical machinery and a variety of household appliances conductors.

  In addition, there are: semi-hard copper wire, flat-angle copper wire, tinned copper wire, oxygen-free copper wire, wire for electronic parts, etc.

  Conductor resistance: the resistance of the conductor is proportional to its length and inversely proportional to its cross-sectional area.

  Formula: R = P × L / S (this formula applies to 26 ℃)

  Where: P ... for the conductor's resistance coefficient, L ... for the length, S ... for the cross-sectional area.

  If it is below 20℃, then the following formula is used: R=P×L/S×254.5/260.5.

  Conductivity: 20 ℃, length 1M, cross-sectional area of 1m square standard soft copper wire resistance 1/58 Europe (0.017241) as its standard, known as 100 ﹪ conductivity. The greater the resistance, the lower the conductivity, the two are inversely proportional.

  Tensile force: tensile test, the specimen and the maximum force of the load to break.

  Tensile strength: tensile test, so that the specimen breaks, expressed as a unit area of the breaking force.

  Elongation: In the specified nominal distance, the specimen after elongation to break the length of the increased ratio of the original length.

  Stranded wire stranding direction: divided into left stranding (Z) and right stranding (S), refers to the observer along the axis of the conductor or core wire from far to near view, the conductor or core wire of the single line along the side of the conductor or core wire winding, the direction of its winding that is the stranding direction.

  Stranding distance: that is, the conductor or core of the single line according to the axial length of the spiral a circle.

  Bending bending resistance: a single line fixed at one end, the other end plus the weight of the drape down, and then bend 180 degrees back and forth until broken, the more bending times that the stronger the bending resistance.

  The meaning of the word printed on the wire.

E347*** AWM 1332 22AWG 200℃ 300V TRIUMPH ELECTRIC WIRE &CABLE CO.

E347***->Sheng brand wire and cable file number in UL.

-> U.S. certification label.

AWM->Name designation of the wire, (UL758 internal wire). Generally used for factory installation wiring only.

1332->The wire classification name number.

22AWG->The specification of the wire.

200°C...wire temperature rating.

300V->Rated voltage.

TRIUMPH ELECTRIC WIRE &CABLE CO.,LTD->Sheng's Wire & Cable Co.

VW-1->(Vertical Specimen) Burning Test.