4D Damper Description:
4D series provided by the company for the Stockbridge Damper tuning fork design, more resonant sound damping device, mainly for reduced vibration and dispersion of fiber optic cable as the breeze generated by the impact energy
Model
|
Clamp Dia. Range
(mm)
|
Total Length
(mm)
|
Clam W
(mm)
|
Weight
(kg)
|
4D-30-27.0
|
27.0-22.3
|
383
|
52
|
2.5
|
4D-30-23.4
|
23.4-19.5
|
383
|
52
|
2.5
|
4D-30-20.3
|
20.3-16.5
|
383
|
52
|
2.5
|
4D-30-18.0
|
18.0-15.0
|
383
|
52
|
2.5
|
4D-30-16.0
|
16.0-14.0
|
383
|
52
|
2.5
|
4D-30-14.0
|
14.0-12.2
|
383
|
52
|
2.5
|
4D-20-27.0
|
27.0-22.3
|
330
|
52
|
1.4
|
4D-20-23.4
|
23.4-19.5
|
330
|
52
|
1.4
|
4D-20-20.3
|
20.3-16.5
|
330
|
52
|
1.4
|
4D-20-18.0
|
18.0-15.0
|
330
|
52
|
1.4
|
4D-20-16.0
|
16.0-14.0
|
330
|
52
|
1.4
|
4D-20-14.0
|
14.0-12.2
|
330
|
52
|
1.4
|
OPGW cable commonly used in the vibration device can also be used for ADSS optic cable.
OPGW installed damper number of configuration cable:
Cable Dia. (mm)
|
Span (m)
|
d<12
|
100~300
|
300~600
|
600~900
|
|
12≤d<22
|
100~250
|
350~700
|
700~1000
|
1000~1200
|
Damper quantity (per span)
|
2
|
4
|
6
|
8
|
ADSS installed damper number of configuration table
Cable Dia. (mm)
|
Span (m)
|
d<12
|
100~250
|
250~450
|
450~700
|
|
12≤d<22
|
100~250
|
250~500
|
500~800
|
1000~1200
|
Damper quantity (per span)
|
1
|
2
|
4
|
6
|
Note: Critical space, and for the safety reasons, the number of dampers do not use more than less.
Choose Model
1.Selection of two factors to consider, first select the damper, and second, choose to install the wire diameter. OPGW fiber optic cable into account the main technical parameters, such as tension, wind speed, terrain and other factors determine the selection of damper.
2.Weight choice:Theoretical formula Z=(T*M)1/2 【Z is the characteristic impedance value of the optical cable. This value is the model of anti-vibration. If Z>100, choose 4D-30. If Z≤100, choose 4D-20.】
Note: T-fiber rated tensile craftsman 18%-25% (KN) M cable unit weight kg/km
3.Clamping diameter selection:The clamping path refers to the sum of the diameter of the cable and the double diameter of the skein in the tension clamp (or suspension line). If installed in the retaining wire, the clamping diameter is twice the diameter of the cable diameter.
4.1 determination of installation position:Install according to the requirements of anti vibration scheme.
Matters needing attention:
1. According to the calculation, if the calculated installation position of anti vibration damper falls on the inner winch, it is not necessary to install protective rod, and it can be installed directly.
2. If the calculated installation position of the damper falls on the optical cable, the protective rod shall be added, and the distance between the end of the protective rod and the end of the inner stranded wire shall be at least 50mm.
3. If the installation position of the damper falls on the outer stranded wire, it can be offset a little and installed directly on the inner stranded wire, but the distance between the center of the damper and the end of the outer stranded wire is more than 50mm.
4. damper head direction: the big damper head is toward the tower.
Model
|
Cable Dia. (mm)
|
Material
|
Length (mm)
|
Weight (kg)
|
Model
|
Cable Dia. (mm)
|
Material
|
Length (mm)
|
Weigth (kg)
|
TFH 0800
|
7.4-8.0
|
antirust aluminium alloy
|
400
|
0.12
|
TFH 1410
|
13.7-14.1
|
antirust aluminium alloy
|
500
|
0.23
|
TFH 0880
|
8.1-8.8
|
antirust aluminium alloy
|
400
|
0.12
|
TFH 1430
|
14.2-14.3
|
antirust aluminium alloy
|
500
|
0.23
|
TFH 0960
|
9.0-9.6
|
antirust aluminium alloy
|
450
|
0.15
|
TFH 1450
|
14.4-14.5
|
antirust aluminium alloy
|
500
|
0.23
|
TFH 1010
|
9.7-10.1
|
antirust aluminium alloy
|
450
|
0.15
|
TFH 1510
|
14.6-15.1
|
antirust aluminium alloy
|
500
|
0.25
|
TFH 1060
|
10.2-10.6
|
antirust aluminium alloy
|
450
|
0.17
|
TFH 1580
|
15.2-15.8
|
antirust aluminium alloy
|
550
|
0.28
|
TFH 1110
|
10.7-11.1
|
antirust aluminium alloy
|
450
|
0.17
|
TFH 1600
|
15.9-16.0
|
antirust aluminium alloy
|
550
|
0.30
|
TFH 1160
|
11.2-11.6
|
antirust aluminium alloy
|
500
|
0.19
|
TFH 1690
|
16.1-16.9
|
antirust aluminium alloy
|
550
|
0.30
|
TFH 1170
|
11.7-11.7
|
antirust aluminium alloy
|
500
|
0.21
|
TFH 1730
|
17.0-17.3
|
antirust aluminium alloy
|
550
|
0.30
|
TFH 1200
|
11.8-12.0
|
antirust aluminium alloy
|
500
|
0.21
|
TFH 1800
|
17.4-18.0
|
antirust aluminium alloy
|
550
|
0.33
|
TFH 1270
|
12.1-12.7
|
antirust aluminium alloy
|
500
|
0.21
|
TFH 1840
|
18.1-18.4
|
antirust aluminium alloy
|
550
|
0.33
|
TFH 1290
|
12.8-12.9
|
antirust aluminium alloy
|
500
|
0.23
|
TFH 1880
|
18.5-18.8
|
antirust aluminium alloy
|
550
|
0.35
|
TFH 1360
|
13.0-13.6
|
antirust aluminium alloy
|
500
|
0.23
|
|
|
|
|
|