Construction
Bare stranded hard-drawn copper conductor is a concentric-lay-stranded conductor consisting of hard drawn copper wires available in both single layer and multi-layer constructions.
Standard
Bare stranded hard-drawn copper conductor can be supplied to meet various National Standards as follows :
TCVN 5064:1994, SD 1995
BS 7884
DIN 48201/1
AS 1746
However, LS VINA Cable & System can also supply a range of alternative designs to meet customer-specified requirements.

TCVN 5064:1994, SĐ 1995
Nominal Cross-section area
|
Construction
|
Calculated Cross-section area
|
Approx. Overall diameter
|
Approx. Overall weight
|
Maximum DC resistance at 20oC
|
Minimum breaking load
|
mm2
|
No. x mm
|
mm2
|
mm
|
kg/km
|
Ω/km
|
N
|
16
|
7 x 1.70
|
15.9
|
5.10
|
142.66
|
1.1573
|
6,031
|
25
|
7 x 2.13
|
24.9
|
6.39
|
223.96
|
0.7336
|
9,463
|
35
|
7 x 2.51
|
34.6
|
7.53
|
311.00
|
0.5238
|
13,141
|
50
|
7 x 3.00
|
49.4
|
9.00
|
444.28
|
0.3688
|
17,455
|
70
|
19 x 2.13
|
67.7
|
10.65
|
610.90
|
0.2723
|
27,115
|
95
|
19 x 2.51
|
94.6
|
12.55
|
848.32
|
0.1944
|
37,637
|
120
|
19 x 2.80
|
117.0
|
14.00
|
1055.67
|
0.1560
|
46,845
|
150
|
19 x 3.15
|
148.0
|
15.75
|
1336.08
|
0.1238
|
55,151
|
185
|
37 x 2.51
|
183.0
|
17.57
|
1660.13
|
0.1001
|
73,303
|
240
|
37 x 2.84
|
234.0
|
19.88
|
2125.35
|
0.0789
|
93,837
|
300
|
37 x 3.15
|
288.0
|
22.05
|
2614.66
|
0.0637
|
107,422
|
400
|
37 x 3.66
|
389.0
|
25.62
|
3529.85
|
0.0471
|
144,988
|
BS 7884-1997
Nominal Cross-section area
|
Construction
|
Calculated Cross-section area
|
Approx. Overall diameter
|
Approx. Overall weight
|
Maximum DC resistance at 20oC
|
Minimum breaking load
|
mm2
|
No. x mm
|
mm2
|
mm
|
kg/km
|
Ω/km
|
N
|
10
|
7 x 1.35
|
10.02
|
4.05
|
89.8
|
1.82900
|
3,752
|
14
|
7 x 1.60
|
14.07
|
4.80
|
126.2
|
1.30300
|
5,267
|
16
|
3 x 2.65
|
16.55
|
5.70
|
148.3
|
1.10600
|
6,194
|
16
|
7 x 1.70
|
15.89
|
5.10
|
142.4
|
1.15400
|
5,946
|
25
|
7 x 2.10
|
24.25
|
6.30
|
217.3
|
0.75630
|
9,073
|
32
|
3 x 3.75
|
33.13
|
8.06
|
296.9
|
0.55200
|
12,400
|
32
|
7 x 2.46
|
33.27
|
7.38
|
298.2
|
0.54970
|
12,442
|
35
|
7 x 2.50
|
34.36
|
7.50
|
308.0
|
0.53370
|
12,860
|
50
|
7 x 3.00
|
49.48
|
9.00
|
443.5
|
0.37060
|
18,520
|
50
|
19 x 1.80
|
48.35
|
9.00
|
435.8
|
0.38190
|
17,700
|
70
|
7 x 3.55
|
69.29
|
10.65
|
621.1
|
0.26460
|
25,930
|
70
|
19 x 2.10
|
65.81
|
10.50
|
593.2
|
0.28060
|
24,090
|
95
|
19 x 2.50
|
93.27
|
12.50
|
840.7
|
0.19800
|
34,140
|
100
|
7 x 4.30
|
101.65
|
12.90
|
911.2
|
0.18100
|
36,540
|
120
|
19 x 2.80
|
116.99
|
14.00
|
1,055
|
0.15780
|
42,830
|
125
|
19 x 2.90
|
125.50
|
14.50
|
1,131
|
0.14710
|
45,940
|
150
|
19 x 3.20
|
152.81
|
16.00
|
1,377
|
0.12080
|
55,940
|
150
|
37 x 2.25
|
147.11
|
15.75
|
1,334
|
0.12640
|
53,880
|
185
|
19 x 3.55
|
188.06
|
17.75
|
1,695
|
0.09815
|
68,860
|
185
|
37 x 2.50
|
181.62
|
17.50
|
1,647
|
0.10240
|
66,490
|
DIN 48201/1
Nominal Cross-section
|
Construction
|
Calculation cross-section
|
Approx.Overall diameter
|
Approx.Overall weight
|
Minimum breaking load
|
Current carrying Capacity(*)
|
mm2
|
No. x mm
|
mm2
|
mm
|
kg/km
|
kN
|
A
|
10
|
7 x 1.35
|
10.02
|
4.05
|
90
|
4.02
|
90
|
16
|
7 x 1.70
|
15.89
|
5.10
|
143
|
6.37
|
125
|
25
|
7 x 2.10
|
24.25
|
6.30
|
218
|
9.72
|
160
|
35
|
7 x 2.50
|
34.36
|
7.50
|
310
|
13.77
|
200
|
50
|
7 x 3.00
|
49.48
|
9.00
|
446
|
19.84
|
250
|
50
|
19 x 1.80
|
48.35
|
9.00
|
437
|
19.38
|
250
|
70
|
19 x 2.10
|
65.81
|
10.50
|
596
|
26.38
|
310
|
95
|
19 x 2.50
|
93.27
|
12.50
|
845
|
37.39
|
380
|
120
|
19 x 2.80
|
116.99
|
14.00
|
1,060
|
46.90
|
440
|
150
|
37 x 2.25
|
147.11
|
15.80
|
1,337
|
58.98
|
510
|
185
|
37 x 2.50
|
181.62
|
17.50
|
1,649
|
72.81
|
585
|
240
|
61 x 2.25
|
242.54
|
20.30
|
2,209
|
97.23
|
700
|
300
|
61 x 2.50
|
299.43
|
22.50
|
2,725
|
120.04
|
800
|
400
|
61 x 2.89
|
400.14
|
26.00
|
3,640
|
160.42
|
960
|
500
|
61 x 3.23
|
499.83
|
29.10
|
4,545
|
200.38
|
1,110
|
(*) Guideline values of current carrying capacity are valid up to a frequency of 60Hz, assuming a wind velocity of 0,6m/s,the ambient temperature of 35oC and a conductor temperature of 70oC.
For special applications, when there is no air turbulence, the values should be reduced by 30%.
AS 1746 - Standard
Construction
|
Calculated Cross-section area
|
Approx. Overall diameter
|
Approx. Overall weight
|
Maximum DC resistance at 20oC
|
Minimum breaking load
|
Equivalent Aluminum area
|
No. x mm
|
mm2
|
mm
|
kg/km
|
Ω/km
|
N
|
mm2
|
7 x 1.00
|
5.498
|
3.00
|
49.3
|
3.250
|
2.32
|
8.68
|
7 x 1.25
|
8.589
|
3.75
|
76.9
|
2.090
|
3.59
|
13.6
|
7 x 1.75
|
16.84
|
5.25
|
151
|
1.060
|
6.89
|
26.6
|
7 x 2.00
|
21.99
|
6.00
|
197
|
0.815
|
8.89
|
34.7
|
7 x 2.75
|
41.58
|
8.25
|
375
|
0.433
|
16.2
|
65.3
|
19 x 1.75
|
45.70
|
8.75
|
413
|
0.395
|
18.3
|
71.7
|
19 x 2.00
|
59.70
|
10.00
|
538
|
0.303
|
23.6
|
93.6
|
7 x 3.50
|
67.35
|
10.50
|
607
|
0.268
|
25.4
|
106
|
7 x 3.75
|
77.28
|
11.25
|
696
|
0.233
|
28.8
|
121
|
37 x 1.75
|
88.99
|
12.25
|
806
|
0.203
|
35.6
|
139
|
19 x 2.75
|
112.9
|
13.75
|
1,020
|
0.160
|
43.1
|
177
|
19 x 3.00
|
134.3
|
15.00
|
1,210
|
0.134
|
50.8
|
211
|
37 x 2.50
|
181.6
|
17.50
|
1,640
|
0.0996
|
70.3
|
284
|
37 x 2.75
|
219.8
|
19.25
|
1,990
|
0.0823
|
83.9
|
344
|
37 x 3.00
|
261.6
|
21
|
2,370
|
0.0691
|
98.9
|
409
|
61 x 2.75
|
362.3
|
24.75
|
3,290
|
0.05
|
138
|
566
|