{"id":7988,"date":"2025-11-08T06:05:35","date_gmt":"2025-11-08T06:05:35","guid":{"rendered":"https:\/\/www.raxpower.com\/?page_id=7988"},"modified":"2026-08-12T04:11:19","modified_gmt":"2026-08-12T04:11:19","slug":"amortisseur-despacement","status":"publish","type":"page","link":"https:\/\/www.raxpower.com\/fr\/damper-spacer\/spacer-damper\/","title":{"rendered":"Amortisseur d'espacement"},"content":{"rendered":"
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Spacer Damper<\/h2>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div>
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Spacer dampers maintain design spacing between bundle conductors in overhead transmission lines while suppressing aeolian vibration and subspan oscillations. They preserve conductor geometry under operational loads by dissipating energy from wind-induced motions, reducing mechanical stress and fatigue risk. These maintenance-free devices control vibration within internationally accepted safety limits throughout the transmission line’s lifetime while withstanding dynamic loads from short-circuit currents, ice, and wind.<\/p>\n

Applications span high voltage transmission systems with twin to quad bundle configurations, where spacer dampers prevent electrical arcing and manage oscillations in severe weather environments. Design spacing typically ranges from 406 mm to 500 mm, accommodating sub-conductor diameters of 21 mm to 41 mm. Units withstand short circuit currents up to 63 kiloamperes (kA) for one second, with high-temperature versions operating continuously at 230\u00b0C.<\/p>\n

Clamp systems\u2014including nut cracker and cantilever types\u2014provide firm conductor grip through anti-unscrewing mechanisms. Helical attachments and elastomer cushions reduce conductor stress, while articulation points subject damping components to compressive forces for enhanced fatigue endurance. The coordination between inertial and elastic damping properties ensures effective vibration control.<\/p>\n

Construction utilizes high strength aluminum alloys for body and clamps, providing corrosion resistance and durability. Elastomer elements deliver elastic and damping properties, while fastening components of galvanized steel, stainless steel, or corrosion-resistant materials ensure long-term performance verified through laboratory testing and field trials per international standards.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div>