China SVD Series Spiral Vibration Dampers Manufacture and Factory

SVD Series Spiral Vibration Dampers

Short Description:

Depending on the customer’s specific conditions, AFL recommends the SVD Spiral Vibration Damper in accordance
with the recommended application chart for the following:
• Conductors between 0.250 inches and 0.500 inches O.D. (used with tietop insulators and rural construction)
• Optical Ground Wires (OPGW) and Overhead Ground Wires (OHGW) in accordance with the recommended application chart

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Product Detail

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Product Tags

BASIS DATA

PRO.NO	Suitable ADSS Cable Diameter（mm）	Length（mm）	Spiral Vibration Damper Diameter（mm）
Material	PVC
SVD-D11.7-L1300	8.3-11.7	1300	10.8-12.7
SVD-D11.7-L1300	11.71-14.3	1350	12.2-14
SVD-D11.7-L1300	14.31-19.3	1650	12.2-14
SVD-D11.7-L1300	19.31-23.5	1750	15-17

♦ AFL’s SVD Series Spiral Vibration Dampers are designed to eliminate the damage caused by Aeolian vibration and reduce overall vibration on bare cables. Made of weather-resistant, non-corrosive plastic, these dampers have a large, helically-formed damping section sized for the cable. A smaller gripping section gently grips the cable. Each damper is marked with the conductor range and color coded to indicate the cable diameter size range.

♦ Line design, temperature, tension, wind flow exposure and history of vibration on similar construction in the location are factors to consider when determining the amount of protection required. Installation can be on both sides of the support location—at least one hand-width from the ends of Armor Rods or cable hardware.

Spiral Vibration Damper (SVD) Installation Instructions

1. Position the SVD with the gripping section toward the attachment point on the pole or tower.

2. Starting at the damping section adjacent to the gripping section, start wrapping the damping section around the cable or wire. Option: you can also spin the SVD onto the cable by starting at the end of the damping section.

3. Once the damping section is completely wrapped, slide the SVD into position ensuring you have at least one hand-width (~6 to 8 inches) from any cable suspension or dead end component.

4. Wrap the gripping section to complete the installation.
Sub‐setting SVD Units SVD units can be installed in series when more than one unit is required at one location. Again, one hand-width spacing is needed between the units. Or, you can subset the two SVD units together; then follow the same instructions above. See bottom image of the photo above for installation view. AFL does not recommend sub-setting more than two units together.