Power Infrastructure
Vibration Dampers & Vibration Study
ZTT can supply the full solution for conductor and OPGW / OPPC vibration control — both the physical dampers (Stockbridge dampers, spacer dampers, forged aluminium-alloy eight-bundle spacer damper) and the vibration study itself. The study uses the industry-standard Tecnodin S.R.L. TIII, SPACER DISTRIBUTION and SINGLE simulation software to derive the correct damper type, count and placement for each line. A dedicated 170 m damping test line at the ZTT test centre is used to validate the results for large-span and river-crossing projects.
Features & Characteristics
- ▪Full vibration solution — damper design, placement study and physical hardware.
- ▪Tecnodin S.R.L. TIII, SPACER DISTRIBUTION and SINGLE simulation software (2004 version).
- ▪170 m damping test line for validation of conductor and OPGW / OPPC damping.
- ▪Portfolio covers Stockbridge dampers, spacer dampers and the forged aluminium-alloy eight-bundle spacer damper (2021).
Applications
- ▪Aeolian and sub-span oscillation control on overhead transmission and distribution lines.
- ▪Long-span, river-crossing and UHV DC projects.
- ▪OPGW / OPPC vibration protection.
Technical specifications
- Damper types
- Stockbridge damper, spacer damper, forged aluminium-alloy eight-bundle spacer damper
- Design software
- TIII, SPACER DISTRIBUTION, SINGLE (Tecnodin S.R.L.)
- Test facility
- 170 m damping test line — conductor and OPGW / OPPC
- Applicable standards
- BS / EN / IEC 61897 (dampers), BS / EN / IEC 61854 (spacer / spacer damper), IS 9708, IS 10162
- QA tests (damper)
- Clamp slip, clamp bolt tightening, attachment of weights to messenger cable, attachment of clamp to messenger cable (BS/EN/IEC 61897)
Related products in Power Infrastructure
View all →Composite Insulators
Silicone-rubber composite insulators with high-strength epoxy resin glass fiber core rods, labyrinth waterproof design and 100% ultrasonic testing.
ZTT Wedge Clamp
Non-compression wedge-type clamp — no conductor cutting required, energy-saving and without contact-resistance rise.
Forged Suspension Clamp
Forged aluminium-alloy suspension clamp — half weight, double strength versus conventional cast designs, with ZTT-owned IP.
Self-Locking Spacer / Spacer Damper
Maintenance-free quick self-locking spacer / spacer damper — around 3× faster to install and eliminates clamp fall-off on traditional latch types.
High-Strength Compression Tension Clamp
High-strength compression tension clamp verified on AACSR-900/510 conductor at 102.98% of the rated tensile strength.
Anti-Corrosion Fittings — Thermal Diffusion Coating
Fittings protected by ZTT thermal diffusion (GREENKOTE) zinc-aluminium coating — 4000 h salt spray, no hydrogen embrittlement.
Need a specification we don't list?
We source technical products on request. Send us your specification sheet and we will respond with sourcing options and lead times.