Bare copper strand wire

1. CCC Chilean Cathode Copper 2. 0.4 -1.0mm or OEM 3.16 years copper wire manufacturing experience 4. Competitive price & Sho

Advantages:

1. The production workshop for the insulation lead is a double –layer full-closed and dustless one with constant temperature and humidity.

2. Mechanically paper-winding has tight layers and heightened insulation strength.

3. Compared with traditional and manual paper-winding in all transformer manufactures, we can rise up working efficiency and reduce manufacture cost of transformer.

Application:

To be used as the material of wires

Guarantee:

Implement whole production process monitoring and inspection.

1. Feature

Name	Bare copper wire sizes	Tolerance	Elongation	Resistivity
Bare copper strain wire	0.4-1.0mm	±1%d mm	20%-25%	≤0.017241Ω·mm2/m

2. Technical requirements of bare copper round wire

1) Diameter

 Unit: mm

Standard Diameter  d	Tolerance
0.40  1.00	±1%d

2) Elongation

Mechanical property list of round copper wire

Standard diameter mm	Elongation %
0.400  0.570	20
0.660  1.000	25

3) The distance of the strand should be in line with following table

type		pitch ratio no greater than
Elitwist		30
Completed stranded wire	one time twist	14
	inner layer	20
	outer layer	15

The pitch ratio of any strand layer should not greater than the pitch ration of adjacent inner layer.

4) Technical data of bare copper strand wire

Nominal section	Wire diameter/piece of each strand * number of strand	Out diameter of strand wire mm
10	0.52/7×7	4.7  (-0.5~+0)
16	0.64/7×7	5.8  (-0.6~+0)
25	0.58/7×14	7.7  (-0.7~+0)
35	0.58/7×19	8.7  (-0.3~+0)
50	0.68/7×19	10.2  (-0.2~+0)
70	0.68/7×27	12.6  (-0.5~+0)
95	0.68/7×37	14.3  (-0.4~+0)
120	0.68/12×27	17.4  (-1.1~+0)
150	0.85/14×19	18.8  (-0.4~+0)
185	0.85/12×27	21.7  (-1.5~+0)
240	0.85/12×37	24.7  (-1.3~+0)
300	0.85/19×27	26.2  (-0.7~+0)
400	0.85/19×37	29.8  (-0.4~+0)
500	0.95/19×37	33.3  (-0.4~+0)

Bare copper strand wire