Introduction
OPGW is a type of cable structure with composite of optical transmission and overhead ground
wire for power transmission. Its working in power transmission line both as optical fiber cable
and
overhead ground wire which can provide protection of lightning strike and conducting short
circuit currency.
The OPGW consist of stainless steel tube optical unit, aluminum cladding steel
wire, aluminum alloy wire. It has central stainless steel tube structure and layer stranding structure.
We can design the structure according to different environment condition and customers requirements.
Applications
-
Adapt to replace the aged ground wire and new structure of high voltage ground wire
-
lighting protection and conduct the short circuit current
-
Optical fiber communication ability
Structural
parameters
|
Cable model
|
OPGW-60
|
OPGW-70
|
OPGW-90
|
OPGW-110
|
OPGW-130
|
|
Number /diameter(mm) of stainless steel tube
|
1/3.5
|
2/2.4
|
2/2.6
|
2/2.8
|
1/3.0
|
|
Number /diameter of AL wire(mm)
|
0/3.5
|
12/2.4
|
12/2.6
|
12/2.8
|
12/3.0
|
|
Number /diameter of ACS wire(mm)
|
6/3.5
|
5/2.4
|
5/2.6
|
5/2.8
|
6/3.0
|
|
Diameter of Cable (mm)
|
10.5
|
12.0
|
13.0
|
14.0
|
15.0
|
|
RTS(KN)
|
75
|
45
|
53
|
64
|
80
|
|
Cable weight (kg/km)
|
415
|
320
|
374
|
432
|
527
|
|
DC resistance(200C W/km)
|
1.36
|
0.524
|
0.448
|
0.386
|
0.327
|
|
Modulus of elasticity(Gpa)
|
162.0
|
96.1
|
95.9
|
95.6
|
97.8
|
|
coefficient of Linear thermal expansion
(1/×10-6)
|
12.6
|
17.8
|
17.8
|
17.8
|
17.2
|
|
Short circuit capacity (kA²s)
|
24.0
|
57.3
|
78.9
|
105.8
|
150.4
|
|
Max. operation temperature (C)
|
200
|
200
|
200
|
200
|
200
|
