Copper Conductor Material

Copper Conductor roll

Copper has high electrical conductivity that is 57? mm2 / m at a temperature of 200C. Temperature coefficient (?) copper 0.004 per 0C. Copper resistivity against temperature curve is not Linie.

The use of copper in electrical engineering the most important is as Conductor, for example: insulated wire (HIS, NYAF), cable (NYM, NYY, NYFGbY), busbar, lamel dc machines, ac machines drag on the ring, and others. Copper has a resistance to corrosion, oxidation. The density of pure copper at a temperature of 200C is 8.96 g/cm3, the freezing point of 10830C. Copper is not high tensile strength ranging from 20 to 40 kg/mm2, tensile strength rod.

copper will rise after the copper rod is reduced cross section to be insulated wire or cable. How to minimize the cross-section of copper rod into copper wire using a puller.

NYM cable

To minimize the copper rod used rock section attraction (die) the amount of variety, growing to the end of the smaller cross-section sharpener. The smaller the wire cross-section is needed, the more stages used a stone drag. Stone materials for the manufacture of tensile wire diameter is large enough tungsten carbide, while for the manufacture of small diameter wire which is the diamond. During the withdrawal will occur long additions. To pull that wheel mounted on the back of the rotation or drag stones made ​​larger in diameter. Held after the withdrawal of the copper rod into wire, copper will be more resilient. This situation is not good to use as insulated wire or cable. For copper becomes soft again there should be warming. But it must be cultivated during the withdrawal process of oxidation does not occur. After the heating process is completed, the process of manufacture of insulated wire or cable can begin. Conductor cross section to a smaller than 16 mm2 solid Conductor used, while for the Conductor of the section> 16 mm2 used the twisted conductive fibers. Provision of insulation on the insulated wire.