Enamelled Copper Wire , PTFE Wire

Stranded Copper Wire / Soft Copper Strands / Hard Copper Strands / Bare Copper Strands / Grounded Copper Strands

    Grade: T2

     

    Model: TJR, TJ

     

    Cross-sectional area: TJR 0.1-1000mm2, TJ 16-400mm2

Shanghai Metal Corporation is a leading stranded copper wire supplier and manufacturer.


Most of the copper strands are bare copper strands without insulation layer, and are divided into hard copper strands and soft copper strands according to the shape.


The stranded copper wire composed of thin copper strands is called soft copper stranded wire (TJR). Soft copper strands are easy to bend, have high conductivity and large current carrying capacity, and can be used as electrical connecting wires. They can be used instead of copper busbars.


Hard copper strands are also called ground copper strands and bare copper strands. The raw material adopts high-purity oxygen-free copper rod, which ensures the stability of the copper wire. The continuous performance is excellent. Hard copper wire is produced in strict accordance with national standards. Hard copper stranded wire is used for the electrified railway contact network load-bearing cable, lightning protection grounding horizontal ground network, signal transmitting antenna, etc.


If you want to know more about our stranded copper wire price please feel free to contact us, we will reply you within 24 hours.


  • 1.Grade: T2

    2.Model : TJR, TJ

    3.Number of shares: TJR 7, 9, 11, 13, 14, 16, 17, 19, 20, 24, 32, 37, 40, 61; TJ 7, 19, 37, 61

    4.Monofilament diameter: TJR 0.12-1.05 mm, TJ 1.70-2.850 mm2

    5.Cross-sectional area: TJR 0.1-1000 mm2, TJ 16-400 mm2





  • By shape:

    1. Hard stranded copper wire

    2. Soft copper stranded wire

    By application:

    1. Ground copper stranded wire

    2. Electrical cable


  • Soft copper strand:

    1. Has excellent bending resistance

    2. Constant stocks, not scattered stocks

    3. High conductivity

    4. Soft and flexible, can be bent

    5. No plating, it belongs to non-insulated wire

    Hard copper strand:

    1. The monofilament is thick and the tension is strong

    2. Compared with soft copper strands, the tensile strength is high

    3. Small resistance and good conductivity



1.Military covered wire conductors; ground rods for the power industry; braided shielded wires for power cables; reinforced conductive cores for special cables; overhead lines for power transmission and telephone lines; load-bearing cables and sliding contact lines for electrified railways and rail transit lines.

2. Application areas of hard copper strands and soft copper strands:

Hard copper stranded wire: Hard copper stranded wire has better resistance to tension than a knot, and has a small resistance and good electrical conductivity. It is often used in places where electrical conductivity is required and the tension is relatively high.

Soft copper stranded wire: The most common wire we use is household electrical wires, which are suitable for electrical machinery and used as conductors for power cables and communication equipment.

  • 1. Pitch-diameter ratio requirements:

    The pitch diameter ratio of any twisted layer should not be greater than the pitch diameter ratio of the adjacent inner layer.

    2. Connector

    The strands in the twisted pair can be brazed or welded as a whole, but the distance between any two joints should not be less than 1m, and should not affect the outer diameter and flexibility of the strands.

    3. Elongation

    The average elongation of the single wire after twisting should be greater than the elongation of the single wire before twisting minus 5 and should be at least greater than 5; The minimum elongation of any single wire after twisting should be greater than the elongation of the single wire before twisting minus 15 and should be at least greater than 5.



 

Soft copper strand:

 

 

Nominal cross-sectional area (mm2)

Calculated cross-sectional area (mm2)

Structure

Calculated outer diameter (mm)

DC resistance at 20℃ (Ω/km) is not greater than

Weight (kg/km)

Single line total

Number of strands × number of wires/nominal diameter of single wire/mm

TJR 1

0.1

0.102

9

9/0.12

0.44

176

0.94

0.12

0.124

7

7/0.15

0.45

145

1.15

0.16

0.159

9

9/0.15

0.56

113

1.47

0.2

0.194

11

11/0.15

0.60

92.9

1.80

0.25

0.247

14

14/0.15

0.68

72.9

2.29

0.3

0.300

17

17/0.15

0.74

60.3

2.80

0.4

0.408

13

13/0.20

0.86

44.2

3.79

0.5

0.503

16

16/0.20

0.96

36.0

4.70

0.63

0.628

20

20/0.20

1.05

28.8

5.86

0.75

0.754

24

24/0.20

1.14

24.0

7.04

1.00

1.01

32

32/0.20

1.30

17.9

9.43

1.60

1.57

32

32/0.25

1.63

11.5

14.7

2.00

1.96

40

40/0.25

1.82

9.24

18.3

2.5

2.41

49

7*7/0.25

2.25

7.58

22.7

4.0

3.94

49

7*7/0.32

2.88

4.64

37.1

6.3

6016

49

7*7/0.40

3.60

2.97

58.0

10

10.01

49

7*7/0.51

4.59

1.83

94.3

16

15.84

84

7*12/0.49

6.14

1.16

150

25

25.08

133

19*7/0.49

7.35

0.736

239

35

35.14

133

19*7/0.58

8.70

0.525

334

40

40.15

133

19*7/0.62

9.30

0.459

382

50

48.30

133

19*7/0.68

10.20

0.382

459

63

62.72

189

27*7/0.65

12.00

0.294

597

80

78.20

259

37*7/0.62

13.02

0.236

744

95

94.06

259

37*7/0.68

14.28

0.196

895

100

99.68

259

37*7/0.70

14.70

0.185

948

120

117.67

324

27*12/0.68

17.39

0.157

1119

125

124.69

324

27*12/0.70

173.90

0.148

1186

160

162.86

324

27*12/0.80

20.20

0.113

1549

185

183.85

324

27*12/0.85

21.74

0.100

1749

200

196.15

444

37*12/0.75

21.80

0.094

1866

250

251.95

444

37*12/0.85

24.72

0.0732

2397

315

310.58

703

37*19/0.75

26.25

0.0594

2954

400

398.92

703

37*19/0.85

29.75

0.0462

3795

500

498.30

703

37*19/0.95

33.25

0.037

4740

630

627.1

1159

61*19/0.83

37.35

0.0294

5965

800

804.3

1159

61*19/0.94

42.30

0.0229

7651

1000

1003.6

1159

61*19/1.05

47.25

0.0184

9547

 

 

Hard copper strand:

 

 

Model

Cross-sectional area (mm2)

Outer diameter

Structure

Monofilament diameter

Monofilament

Stranded wire (calculated value)

Nominal

Calculated

Tensile strength (MPa) is not less than

Elongation (%) is not less than

Breaking force (Kn) is not less than

DC resistance at 20℃ is not less than (Ω/km)

Weight (kg/km)

Before twisting

After twisting

JT

16

 

5.10

1*7

1.70

 

 

 

 

1.14

143

JT

25

 

6.36

1*7

2.12

 

 

 

 

0.733

222

JT

35

 

7.50

1*7

2.50

 

 

 

 

0.527

309

JT

50

 

9.00

1*7

3.00

 

 

 

 

0.366

445

JT

70

65.81

10.5

1*19

2.10

439

417

0.7

27.45

0.275

599

JT

95

93.27

12.5

1*19

2.50

435

413

0.8

38.54

0.194

849

JT

120

116.99

14

1*19

2.80

432

410

0.9

48.01

0.155

1065

JT

120

119.69

14.21

1*37

2.03

432

410

0.9

48.01

0.150

1092

JT

150

148.07

15.8

1*19

3.15

428

407

1.0

60.21

0.122

1347

JT

150

147.11

15.8

1*37

2.25

438

416

0.8

61.21

0.123

1342

JT

185

 

17.50

1*37

2.50

 

 

 

 

0.0995

1650

JT

240

 

19.95

1*37

2.85

 

 

 

 

0.0766

2145

JT

300

 

22.05

1*37

3.15

 

 

 

 

0.0627

2620

JT

400

 

19.95

1*61

2.85

 

 

 

 

0.0465

3510

Packing characteristics:

 

1. Beautiful packaging, strong and reliable

2. Effective protection of copper stranded products

3. Convenient transportation and transportation

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