Vibration Damper (Non-slip Type Vibration Damper with Armor Rods)、Stockbridge Dampers with Armor Rod

stock bridge damper is composed of two different weight hammers stranded galvanization steel wire with high elasticity and high-intensity, and aluminum alloy clamp.Non-slip type vibration damper is composed of hammer and helical clip. It can reduce the breeze fatigue damage of wire and optical cable. But if the vibration damper produce the slip it will cause greater damage to the wire, so must be ensure to installed with reasonable weight and position.

 

 

Resonant Frequency of Stock bridge Dampers
The 4D series stockbridge dampers we provided are Stock-bridge Tuning Fork, with four resonant frequencies. The frequency range is from 3Hz to 150Hz. With a wide frequency range, the 4D stockbridge dampers can highly consume vibration energy and effectively dissipate the energy caused by cable Aeolian vibration, reduce cable vibration horizontal, and extend the cable service life.

 

Installation
Armor rods are needed when the stockbridge damper is installed on OPGW and ADSS cable. Armor rods are also called Vibration damper hyperactive rods. Because of the concentrated stress, the vibration damper will cause some damages to the cable. In addition, the armor rods provide proper stress distribution on the optical cable and protect the cable.

 

 

Stock bridge Dampers with Armor Rod Characteristics:
1、Vibration damper with armor rod.
2、Stock bridge dampers can be installed on both OPGW and ADSS cable.
3、Reduce cable vibration horizontally and extend the cable service life.

 

 

Note:
For safety reason, quantity of vibration damper would rather surpass than lack at critical span.

 

Composition: galvanized cast iron hammer head, hot-dip galvanized steel strand, aluminum alloy clamp, stainless steel bolt, etc.
Purpose: Eliminate or reduce the vibration caused by wind energy during the operation of optical cables to protect optical cables and hardware.
Features: Adopting a typical Harrow design, its basic principle is to dynamically absorb energy, its frequency coverage range is 6Hz-150Hz, and there are four resonant frequencies within this range, which can meet the needs of various models of OPGW and has very effective Vibration damping effect.

 

Ordering requirements：
Our company can make corresponding anti-vibration solutions for specific projects. Users need to provide the following information:
a. Annual average operating stress of optical cable (N).
b. Detailed list of line poles and towers.
c. Topography and landforms (plains, hills, mountains, forests, across rivers, etc.).
d. Table of specifications and models of optical cables and related parameters – diameter (mm), ultimate tensile strength (N), unit weight (kg/m), aluminum-steel section ratio.

 

Matching hardware:
Protective strip (see the picture below), in order to prevent the anti-vibration hammer aluminum clamp from being directly clamped on the 0PGW optical cable and causing damage, it is equipped with a protective strip, which has a good protective effect on the optical cable.