Vibration Damper (Hammer)

Aluuminium alloy vibration damper 1.High quality,reasonable price 2.Easy install,fast delivery 3.ISO9001:2008, SGS

Vibration Damper for OPGW

Vibration Damper photo:

4D series Vibration Damper is a turning fork multi-resonant Vibration Damper founded by Stockblique, and is mainly used in the dispeling and dispersing of the impact energy on the cable caused by the breeze .

Vibration Damper specification:

Model	Clamp Dia. Range(mm)	Total L(mm)	Clamp W(mm)	Weight(kg)
4D-30-27.0	27.0-22.3	383	52	2.5
4D-30-23.4	23.4-19.5
4D-30-20.3	20.3-16.5
4D-30-18.0	18.0-15.0	383	52	2.5
4D-30-16.0	16.0-14.0
4D-30-14.0	14.0-12.2
4D-20-27.0	27.0-22.3	330	52	1.4
4D-20-23.4	23.4-19.5
4D-20-20.3	20.3-16.5
4D-20-18.0	18.0-15.0	330	52	1.4

Collocation:

It is usually used for vibration insulation of OPGW fiber, also include ADSS fiber.

The scheme table for the intallation quantity of OPGW Vibration damper

Cable Dia.(mm)	Span(m)
d<12	100~300	300~600	600~900
12≤d<22	100~350	350~700	700~1000	1000~1200
Q’ty	2	4	6	8

The scheme table for the intallation quantity of ADSS Vibration damper

Cable Dia.(mm)	Span(m)
d<12	100~250	250~450	450~700
12<d<22	100~250	250~500	500~800	800~1000
Q’ty	1	2	4	6

At critical span, usually use more vibration damper for safety.

Choose model:

When choosing the damper, two factors should be taken into consider, one is damper weight, the other is diameter of the cable. Considering all mainly factors of the OPGW fiber, such as Tensility, wind speed, landform…, and so on. Then make the decision of damper model.

Choose of  weight

Z=(T*M)1/2  academic formula: Z=(T*M)1/2

Meaning: Z means characteristic impedance of fiber, it decides the model of vibration. When Z over 110, used the 4D-30 model. If not bigger than 110, use the 4D-20 model

T---18%-25% rated tensile strength of fiber(KN)  M—the weight unit of fiber kg/km

Choose of Clamp Dia. Range(mm)

The clamp Dia. Range is the Dia.of fiber with doubled Dia.for preformed rods of Tension set(suspension set).If installed the armour rod, the clamp Dia.range will be Dia. of fiber with doubled Dia. of Armour rods.

Installation hint:

Notice:

1,According as calculation,installed the vibration damper with out armour rod, when the location on the inner preformed rod.

2,Setting the armour rod when intall the vibration damper, there will be a distance which less than 50mm between both end of the armour rod and inner preformed rod.

3,If the location on the outer preformed rod, installed the vibration on the inner preformed rod,and the center of vibration should have a distance more than 50mm from the end of outter preformed rods.

4,The direction of the big hammerhead should face the tower when installing the Vibration Damper.

Armour Rod specification:

Model	Cable Dia.  (mm)	Material	L (mm)	Weight (kg)	Model	Cable Dia. (mm)	Material	L (mm)	Weight (kg)
TFH 0800	7.4-8.0	Stainless Aluminum alloy	400	0.12	TFH 1410	13.7-14.1	Stainless Aluminum alloy	500	0.23
TFH 0880	8.1-8.8		400	0.12	TFH 1430	14.2-14.3		500	0.23
TFH 0960	9.0-9.6		450	0.15	TFH 1450	14.4-14.5		500	0.23
TFH 1010	9.7-10.1		450	0.15	TFH 1510	14.6-15.1		500	0.25
TFH 1060	10.2-10.6		450	0.17	TFH 1580	15.2-15.8		550	0.28
TFH 1110	10.7-11.1		450	0.17	TFH 1600	15.9-16.0		550	0.30
TFH 1160	11.2-11.6		500	0.19	TFH 1690	16.1-16.9		550	0.30
TFH 1170	11.7-11.7		500	0.21	TFH 1730	17.0-17.3		550	0.30
TFH 1200	11.8-12.0		500	0.21	TFH 1800	17.4-18.0		550	0.33
TFH 1270	12.1-12.7		500	0.21	TFH 1840	18.1-18.4		550	0.33
TFH 1290	12.8-12.9		500	0.23	TFH 1880	18.5-18.8		550	0.35
TFH 1360	13.0-13.6		500	0.23

Packing details:

Factory photo:

About Us / HC Hardware Department:1)Our factory is more than 10,000 square meters big.2)There are 300 employees in our factory including 30 experienced engineers.3)We have formed 6 production lines.4)The capacity of our factory is 200,000 sets per month.5)We have very large markets. our customers are from North America, Sourth America, East Europe, West Europe, Southeast Asia, Middle East, Russia, etc