Transportation train on electrified railway

Copper contact wire　Silver-copper alloy contact wire

　　Copper contact wire is served as the power transmission conductor by transportation train on electrified railway.
◆Kinds and codes of contact wire:
1）copper contact wire：CT
2）silver-copper contact wire：CTHA
◆Technical performance of CT, CTHA contact wires:
1）Resistivity at 20℃(Ω.mm2/m),
CT:≤0.01768, CTHA:≤0.01786。
2）For specifications and size tolerances, see table.


Specification
(nominal cross area)
mm2
Calculated cross area
mm2
Dimension and tolerance
Angle and tolerance
Reference unit mass
kg/km
A
±1%
B
±2%
C
±2%
D
+4%
-2%
E
K
R
G
H
±1°
85
86
10.80
10.76
9.40
7.24
6.80
4.60
0.40
27°
51°
769
110
111
12.34
12.34
9.73
7.24
6.80
4.47
0.40
27°
51°
992
120
121
12.90
12.90
9.76
7.24
6.80
4.35
0.40
27°
51°
1082
150
151
14.40
14.40
9.71
7.24
6.80
4.00
0.40
27°
51°
1350
Notes:reference unit mass is calculated as per the density of 8.94 g/cm3

3）For Copper contact wire , see table.

Model
Breaking strength
≥KN
Elongation
(%)≥
Twists at least cycles(up to damage)
Repeated bending
(up to damage)
Bending radius(mm)
Times≥
CT85
32.5
2.7
3
25
8
CT110
41
3.0
3
25
8
CT120
43.2
3.0
3
25
8
CT150
53.4
3.3
3
30
8

4）For Silver-copper alloy contact wire, see table.
Model
Breaking strength
≥KN
Elongation
(%)≥
Twists at least cycles(up to damage)
Repeated bending
(up to damage)
Unsoftened
Softened
Bending radius(mm)
Times≥
CTHA85
32.50
29.30
2.5
5
25
8
CTHA110
41
36.9
2.8
5
25
8
CTHA120
43.2
39.1
2.8
5
25
8
CTHA150
53.4
48.1
3.0
5
30
8
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