Spiral Vibration Damper is made of high-strength, antigenic and high-elasticity PVC plastic, easy to be installed on ADSS cables and OPGW cables which diameter are smaller than 12mm. It is an interference type damper designed to attenuate the energy of cable vibration and restrain cable vibration amplitude by impacting with its damping section, so as to protect cables.

Data Sheet

Specification Model	Suitable Cable Diameter (mm)	Gripping Section (mm)	Total Length (mm)	Net Weight (kg)	Color Code
FTL 0829 125	6.30-8.29	250	1250	0.26	Orange
FTL 1170 130	8.30-11.70	250	1300	0.28	Yellow
FTL 1430 135	11.71-14.30	250	1350	0.30	Green
FTL 1930 165	14.31-19.30	330	1650	0.65	Blue

 

Direction

1. Select the specification model for Spiral Vibration Damper is according to cable diameter.

2. The installed Spiral Vibration Damper may be several along the cable or at the same point. Gripping section is close to pole or tower and the length from the end of Damping Section to the end of Inner Preformed Rods for Tension Clamp or Suspension Clamp is 12mm.

3. The quantity of damper per span is confirmed by cable strength and span length. The normal specification is as below:

 

Span Length	Quantity
<100m	0
100—250m	2
250—400m	4
400—800m	6

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