The Spiral Vibration Damper eliminates damage from Aeolian vibration on bare conductors and cables by dissipating high-frequency, low-amplitude oscillations caused by laminar wind flow. Widely applied on distribution spans and telecommunications infrastructure, it prevents long-term fatigue on small-diameter cables, including ADSS cables, OPGW, overhead shield wires, and covered conductors in spans over 800 feet.
Constructed from weather-resistant, non-corrosive Polyvinyl Chloride (PVC) or plastic materials, the damper provides high strength, aging resistance, and elasticity. Formulated to withstand corrosive environments, Ultraviolet (UV) exposure, and continuous operation up to 125°C, it maintains durability without stretching or contracting in outdoor conditions.
The design features a large, helically-formed damping section that interacts with the cable to create action/reaction motion opposing natural vibration waves. A smaller gripping section gently holds the conductor without concentrated mass or clamping stress, protecting cable sheaths and optical fibers. The helical shape enables effective energy dissipation and is not placement-sensitive, allowing installation anywhere away from other attachments. Units accommodate cable diameters from 0.250 to 0.750 inches, with total lengths of 1160 mm to 1670 mm and weights between 0.24 kg and 0.66 kg.
Installation requires positioning the damper 6 to 8 inches from hardware such as armor rods or suspension clamps. The gripping section wraps around the cable by hand until fully covered, ensuring secure attachment without tools.
Extend Cable Lifespan with RaxPower Spiral Vibration Dampers
The Challenge: Aeolian Vibration
Aeolian Vibration is a high frequency, low-amplitude vibration initiated by laminar wind over the cable, which can cause fatigue, wear, and even failure of conductors and associated hardware.
Our Solution: Spiral Vibration Dampers
At RaxPower, we use cutting-edge technology to make sure our Spiral Vibration Dampers work optimally for the specified conductor range and cable diameter. Made from weather-resistant PVC, our dampers feature a unique spiral design that absorbs and distributes vibration energy, reducing impact and extending the lifespan of cables up to 0.75 inches.
Evidence-Based Innovation
Our SVDs were developed following numerous vibration studies and extensive laboratory research and testing. This evidence-based approach ensures that our dampers are effective across a broad range of frequencies and environmental conditions.
Why Choose Us
As a professional manufacturer with over 21 years of experience, we employ automatic machinery and strict quality control measures. We support all sizes and offer customization, ensuring that every damper meets the highest standards for performance and durability. Our commitment to innovation and quality means that our products are backed by rigorous testing protocols.
Get in Touch
Contact us today for the best guidance on SVDs, installation, and other electrical devices.
Frequently Asked Questions (FAQS)
How does the Stockbridge Vibration Damper reduce aeolian vibration?
The damper operates through two natural frequency modes ('flying' and 'wiggling') using a specially designed 19-strand messenger wire that dissipates vibration energy by converting kinetic energy into heat through friction. Its asymmetrical design with unequal weights on messengers of unequal length creates four resonant peaks instead of two, providing protection across the entire range of dangerous vibration frequencies.
What materials are used and how do they ensure durability?
The damper features an aluminum alloy clamp, hot-dip galvanized steel weights and messenger cable, and bolts made from galvanized steel or stainless steel. Hot-dip galvanization provides corrosion resistance for long-term durability, with comparative testing demonstrating 40+ years of proven protection.
How do you ensure compliance with industry standards?
Our dampers are tested in accordance with international standards including IEC, IEEE, ASTM, ANSI, and others. We employ strict quality control with raw material selection, multi-stage testing, load and gauge tests to verify durability, and all products are reviewed twice before packing to ensure compliance.
How does installation work?
No special tools are required. Our dampers feature a breakaway bolt option that shears off at proper torque, eliminating the need for torque wrenches and ensuring correct installation. Application instructions with recommended procedures and bolt torque specifications are provided with each order, and our technical support team can assist with placement recommendations.
What conductor sizes are compatible?
The damper is compatible with conductor diameters ranging from 0.859 inches to 1.130 inches and beyond. We offer customizable designs tailored to specific project needs and conductor sizes, with manufacturing processes including hot forging for strength and accuracy.
Do you provide damper selection assistance?
Yes, RaxPower offers the Vibrec® damper recommendation program to assist in determining damper requirements for transmission and distribution lines, providing technical support for optimal placement and performance.
What is your capacity for large orders?
We operate 17,000 square meters of production workshops and 5,000 square meters of warehouses, enabling efficient handling of large orders. Lead times are competitive and negotiable based on order volume, with safe packing and timely delivery to meet project schedules.
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