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Hard copper soft twisted wire TJ bare copper twisted wire pure copper twisted wire manufacturers
I. Overview:
Copper flexible stranded wire is a flexible connection line for electrical devices (such as transformers, electric furnaces), electronic and electrical equipment, and thyristor components for power transmission and distribution. Flexible copper stranded wire is suitable for electrical equipment, electronic appliances or component wiring or the conductor core of insulated wire and cable with soft structure in these occasions.
Copper flexible stranded wire is made of high quality round copper wire or tinned soft round copper wire. During the process of toughening, the finished product is soft, neat and beautiful in appearance.
The DC resistivity (20oC) of copper flexible stranded wire is not greater than 0.0182Ω.mm2 / m. The DC resistivity (20oC) of tinned copper flexible stranded wire is not greater than 0.01193Ω.mm2 / m.
Soft copper stranded wire is a soft connection wire for electrical equipment and electronic appliances or component wiring.
The main product standard of soft copper stranded wire is (GB12970.2-91).
Types of copper stranded wire:
TJ hard copper stranded wire TJX tinned hard copper stranded wire
TJR1-1 soft copper stranded wire TJR2-2 soft copper stranded wire
TJR3-3 type soft copper stranded wire TJRX1-1 type tinned soft copper stranded wire
TJRX2-2 tinned soft copper stranded wire TJRX3-3 tinned soft copper stranded wire.
Nominal cross-sectional area |
Root / single wire nominal diameter |
Approximate outer diameter |
20℃ DC resistance |
(mm2) |
(mm) |
(mm) |
(Ω) |
16 |
7/1.70 |
5.10 |
1.159 |
25 |
7/2.14 |
6.42 |
0.735 |
35 |
7/2.52 |
7.56 |
0.528 |
50 |
7/3.00 |
9.00 |
0.371 |
70 |
19/2.14 |
10.70 |
0.263 |
95 |
19/2.52 |
12.60 |
0.197 |
120 |
19/2.80 |
14.00 |
0.154 |
150 |
19/3.15 |
15.75 |
0.121 |
185 |
37/2.52 |
17.64 |
0.100 |
240 |
37/2.85 |
19.95 |
0.077 |
300 |
37/3.15 |
21.70 |
0.064 |
Nominal cross section |
Number of strands x number of threads |
DC resistance at 20 ℃ |
Reference outer diameter |
reference weight |
Manufacturing length |
10 |
7xx7x0.52 |
1.83 |
4.7 |
98 |
2000 |
16 |
7x7x0.64 |
1.26 |
5.8 |
144 |
2000 |
25 |
7x12x0.62 |
0.695 |
7.7 |
239 |
2000 |
35 |
7x19x0.58 |
0.512 |
8.9 |
322 |
1000 |
50 |
7x19x0.68 |
0.375 |
10.2 |
444 |
1000 |
70 |
7x27x0.68 |
0.262 |
12.6 |
631 |
1000 |
95 |
7x37x0.68 |
0.195 |
14.3 |
865 |
500 |
120 |
7x37x0.76 |
0.153 |
16.0 |
1080 |
500 |
150 |
7x48x0.74 |
0.134 |
18.1 |
1328 |
500 |
185 |
7x61x0.74 |
0.098 |
20.0 |
1668 |
500 |
240 |
7x61x0.85 |
0.081 |
23.0 |
2227 |
250 |
Bare copper flexible twisted wire TJR
Nominal cross section |
Number of strands x number of threads |
DC resistance at 20 ℃ |
Reference outer diameter |
reference weight |
Manufacturing length |
25 |
7x14x0.58 |
0.695 |
7.7 |
238 |
200 |
120 |
12x27x0.68 |
0.153 |
15.9 |
1080 |
500 |
150 |
19x14x0.85 |
0.120 |
18.7 |
1380 |
500 |
185 |
27x12x0.85 |
0.098 |
21.7 |
1690 |
500 |
240 |
37x12x0.85 |
0.072 |
24.7 |
2320 |
250 |
Bare copper flexible twisted wire TJR table 4
Nominal cross section |
Number of strands x number of threads |
DC resistance at 20 ℃ |
Reference outer diameter |
reference weight |
Manufacturing length |
0.12 |
7x0.15 |
145 |
0.45 |
1.12 |
2000 |
0.30 |
16x0.15 |
63.6 |
0.71 |
2.53 |
2000 |
0.50 |
16x0.20 |
36.0 |
0.94 |
4.5 |
1000 |
0.60 |
7x0.32 |
32.1 |
1.0 |
5.1 |
1000 |
0.75 |
19x0.23 |
26.0 |
1.15 |
7.3 |
2000 |
1.00 |
19x0.26 |
17.6 |
1.3 |
9.33 |
4000 |
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Anhui Hongye Instrumentation Cable Co., Ltd.
Address: 866 Tiankang Avenue, Tianchang Economic Development Zone, Anhui Province
Phone:0550-7043587
Fax:0550-7043567

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