Product Description
*Minimum Quantities may apply.
Preformed Line Products Hi Mass Spiral Vibration Damper (HMSVD), Yellow - .564” - .760” (PLP 5050203) - The Hi Mass Spiral Vibration Damper (HMSVD) features a damping section nearly twice as long as that of a standard Spiral Vibration Damper (SVD), delivering the performance of two standard units in one. This extended design reduces the number of installation points and components required on the line.
Engineered to reduce Aeolian Vibration—high-frequency, low-amplitude oscillations caused by wind crossing the line—the HMSVD is ideal for use on OPGW, conductors, and strands with an outside diameter under 0.75". These dampers are purpose-built solely to mitigate vibration and are not intended to protect against stress concentrations, fretting, abrasion, or arc-over damage. The level of vibration protection needed depends on factors like line design, temperature, tension, wind exposure, and vibration history from similar installations in the area.
Features:
- Made of solid polyvinyl chloride, helical rod material is noncorrosive and has a surface hardness which does not abrade the strand
- For application-inspection, the gripping section should be installed approximately one hand’s width from the ends of hardware. Engineering calculations are not required for placement locations.
- Compatible with any down guy strand
PART TABLES
Standard - For use on: Bare Conductors, Shield Wires and OPGW
Explanatory Notes: (1) Up to three SVD's can be subset together in one location where the cable diameter is 0.461 in. and below. (2) On cables with diameters above 0.461 in., only two SVD's should be subset for optimal damping performance.
| Catalog Number | Diameter Range (inches) | Units | Wt. in Lbs. | Length (inches) | Color Code | |
| Min. | Max. | Per Carton | ||||
| 5050103 | .250 | .326 | 50 | 31 | 49 | Red |
| 5050104 | .327 | .461 | 50 | 34 | 51 | White |
| 5050105 | .462 | .563 | 50 | 36 | 53 | Orange |
| 5050106 | .564 | .760 | 25 | 50 | 65 | Yellow |
Hi Mass - For use on: Bare Conductors, Shield Wires and OPGW
Explanatory Notes: (1) Up to three SVD's can be subset together in one location where the cable diameter is 0.461 in. and below. (2) On cables with diameters above 0.461 in., only two SVD's should be subset for optimal damping performance.
| Catalog Number | Diameter Range (inches) | Units | Wt. in Lbs. | Length (inches) | Color Code | |
| Min. | Max. | Per Carton | ||||
| 5050201 | .327 | .461 | 50 | 60 | 91 | White |
| 5050202 | .462 | .563 | 50 | 65 | 94 | Orange |
| 5050203 | .564 | .760 | 15 | 55 | 97 | Yellow |
DOCUMENTATION
Product Information
Spiral Vibration Damper for Transmission & Distribution - Catalog Pages
Spiral Vibration Damper for Communications Lines - Catalog Pages
Spiral Vibration Damper for Tower Down Guys - Catalog Pages
Spiral Vibration Damper for OPGW - Catalog Pages
Installation Instructions
SP2130 (Spiral Vibration Damper)
SP3278 (Multiple Spiral Vibration Dampers)
Reports & Manuals
