Preformed Helical Vibration Damper for Line Protection

• Name: Helical Vibration Damper
• Transport Package: Wooden Case
• Specification: CE, RoHS, SGS, ISO
• Trademark: Powtech
• Origin: China
• Model NO.: FTL
• HS Code: 39269090
• Production Capacity: 100000PCS/Month

Product Description

Preformed Helical Vibration Damper for line protection

PVC spiral vibration damper is made of high-strength, antigenic and high-elasticity PVC plastic, easy to install
and operate. The shock absorber damper is an interference type damper to attenuate vibration amplitude by
impact with its damping section and especially designed for ADSS cable and OPGW cable of diameter less than 12mm.

Product Model	Cable Diameter (mm)	Gripping Length L1 (mm)	Total Length L (mm)	Weight (Kg)
FTL-11	8.3~11.7	250	1300	0.28
FTL-14	11.71~14.30	250	1350	0.30
FTL-16	14.31~19.30	330	1670	0.66

Application Guide: 
1. Select the Specification Model according to cable diameter.
2. 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 Damping Section to Inner Protection Rods end of Tension Set or Suspension Set is 12 cm. 
3. The quantity of damper per span is confirmed according to cable stress and span length. The normal specification is followed:
 

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

Package: