SV-type air spoilers are designed to protect wires and ground wires of overhead power lines (OHL) from galloping. Manufactured in compliance with TU 3449-009-52819896-2020.

Design and Features
The spoiler is a spiral with variable pitch and diameter, made of a polyvinyl chloride (PVC) round rod with a diameter ranging from 10 to 25 mm and a length of 4 to 5.3 m.
It is intended for use on wires and ground wires with diameters from 6.5 to 45 mm on OHL with voltages ranging from 6 to 220 kV.

The spiral consists of two sections:

• Installation Section: Secures the spoiler to the wire, ground wire, or cable.
• Section with Increased Pitch: Ensures continuous alteration of aerodynamic characteristics along the span to prevent galloping.

The total length of spoilers installed in a span is 20–30% of the span’s length. The nomenclature, quantity, and installation scheme for the products on OHL are determined by specialists from LLC "FORENERGO-ENGINEERING" based on survey forms.

Technical Specifications

• SV-8:
  • Wire diameter: 6.5–8.3 mm
  • Spoiler length: 4050 mm
  • Rod diameter: 10 mm
  • Weight: 0.43 kg
• SV-11:
  • Wire diameter: 8.31–11.72 mm
  • Spoiler length: 4110 mm
  • Rod diameter: 10 mm
  • Weight: 0.45 kg
• SV-14:
  • Wire diameter: 11.73–14.32 mm
  • Spoiler length: 4210 mm
  • Rod diameter: 14 mm
  • Weight: 1.00 kg
• SV-19:
  • Wire diameter: 14.33–19.32 mm
  • Spoiler length: 4390 mm
  • Rod diameter: 14 mm
  • Weight: 1.05 kg
• SV-23:
  • Wire diameter: 19.33–23.54 mm
  • Spoiler length: 4540 mm
  • Rod diameter: 18 mm
  • Weight: 1.90 kg
• SV-25:
  • Wire diameter: 23.55–25.90 mm
  • Spoiler length: 4650 mm
  • Rod diameter: 18 mm
  • Weight: 1.95 kg
• SV-29:
  • Wire diameter: 25.91–29.61 mm
  • Spoiler length: 4800 mm
  • Rod diameter: 20 mm
  • Weight: 2.60 kg
• SV-33:
  • Wire diameter: 29.62–33.40 mm
  • Spoiler length: 4800 mm
  • Rod diameter: 20 mm
  • Weight: 2.65 kg
• SV-37:
  • Wire diameter: 33.41–37.33 mm
  • Spoiler length: 4900 mm
  • Rod diameter: 20 mm
  • Weight: 2.70 kg
• SV-40:
  • Wire diameter: 37.34–40.71 mm
  • Spoiler length: 5180 mm
  • Rod diameter: 25 mm
  • Weight: 4.35 kg
• SV-45:
  • Wire diameter: 40.72–45.0 mm
  • Spoiler length: 5300 mm
  • Rod diameter: 25 mm
  • Weight: 4.40 kg

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