The Air Flow Spoiler suppresses galloping in cable spans—a low-frequency, high-amplitude wind-induced oscillation that can severely damage cable systems and supporting structures. By mitigating galloping, the device increases cable longevity, reduces reliability problems from cable failure, and minimizes electrical discharges and radio interference in high-voltage environments.
The spoiler features a central aerodynamic section that disrupts lift forces by presenting a constantly changing profile to the wind, while helical gripping sections at both ends secure the unit to the cable without excessive clamping forces. Optimal placement and quantity per span are determined using specialized software developed from field and laboratory research to ensure effective performance across specific span portions.
Constructed from rigid, non-metallic, Ultraviolet (UV)-stable Polyvinyl Chloride (PVC), the spoiler resists environmental degradation and corrosion. Standard versions support applications up to 230 kilovolts (kV), while Extra High Voltage (EHV) versions for use up to 345 kV include a co-extruded semi-conductive material layer that resists high electrical gradients and minimizes radio interference generation.
The spoiler accommodates transmission and distribution lines, Aerial Dielectric Self-Supporting (ADSS) cables, Optical Ground Wire (OPGW), telecommunications cables, and tower down guys. Typical lengths range from 14 to 16 feet, with diameter compatibility varying by model to fit cables from approximately 0.46 to over 1.16 inches. Installation requires rotating the spoiler onto the cable according to software-determined spacing.
RaxPower Air Flow Spoiler Manufacturer
Established in 2003, RaxPower is a reputable supplier in the telecommunication industry, located in Hebei Province, China, with over 21 years of manufacturing and exporting experience. Our extensive production facilities include 17,000 square meters of workshops and 5,000 square meters of warehouses, supported by a team of over 170 employees, including professional engineers and technicians.
The Air Flow Spoiler is designed to offset the aerodynamic lift forces that cause galloping, a low frequency, high amplitude wind-induced motion that can lead to cable damage, harm to supporting structures, and failure at connection points. Made of rigid non-metallic, non-corrosive thermal plastic, it maintains aerodynamic stability by providing a continually changing profile to the wind, reduces guy wire motion, and extends the life of support hardware and cables. This product effectively suppresses galloping or dancing motion in OPGW or ADSS cables, ensuring reliable performance in various applications.
Leveraging our advanced manufacturing processes such as hot forging, which enhances part strength and sizing accuracy, and strict quality control including multi-stage testing and galvanization, we guarantee that each Air Flow Spoiler meets high standards of durability and efficiency. Our commitment to reliability and innovation, backed by OEM design services, makes us a trusted partner for global clients. Contact us for more details and pricing to learn how our expertise can benefit your projects.
| Parameter | Value |
|---|---|
| Material | UV-stable PVC |
| Length | 14 to 16 feet |
| Diameter Compatibility | 0.46 to 1.16 inches |
| Voltage Rating | Standard: up to 230 kV; EHV: up to 345 kV |
| Weight | 4.50 lb |
| Installation | Rotating onto cable |
| Applications | Transmission and distribution lines, ADSS, OPGW, telecommunications cables, tower down guys |
Frequently Asked Questions (FAQS)
What is an Air Flow Spoiler and how does it work?
RaxPower's Air Flow Spoiler is a motion control device that prevents galloping of cable spans. The central spoiling section provides a constantly changing aerodynamic profile that disrupts lift, while helical gripping sections on both ends secure it to the cable without excess clamping forces, preventing severe damage and increasing cable longevity.
Where are Air Flow Spoilers commonly used?
RaxPower's Air Flow Spoilers are used with various cable types, including transmission and distribution lines, ADSS, OPGW, telecommunications cables, and tower down guys, particularly in areas prone to high winds and ice formation.
What voltage ratings are available for Air Flow Spoilers?
RaxPower offers standard Air Flow Spoilers for up to 230 kV applications and EHV versions for up to 345 kV. The EHV models include a co-extruded semi-conductive material layer that resists high electrical gradients and minimizes radio interference (RI).
What are the temperature limitations for Air Flow Spoilers?
RaxPower's Air Flow Spoilers are rated for continuous operation at temperatures up to 125°C, with high-temperature versions available for applications requiring enhanced thermal performance.
How are Air Flow Spoilers installed on cables?
Installation involves rotating the spoiler onto the cable, with helical gripping sections ensuring secure attachment. Proper placement and spacing are guided by recommended procedures to optimize performance.
What ensures the long-term durability and weather resistance of Air Flow Spoilers?
RaxPower's Air Flow Spoilers are made of durable, UV-rated PVC material, which is non-metallic and non-corrosive. This design reduces maintenance and extends service life, with each unit tested for electrical properties and quality before shipment.
How is the optimal number and placement of Air Flow Spoilers determined for a cable span?
RaxPower uses specialized software developed from field and laboratory research to determine the correct number and placement of Air Flow Spoilers in each cable span. For example, spans between 100-130 feet typically require 2 spoilers, with specific placement distances from the first structure.
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