Shijiazhuang Paerpu Import and Export Trading Co., Ltd.

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Vibration Damper

Vibration Dampers are used to absorb Aolian Vibrations of conductor of Transmission Lines, as well as ground wire, OPGW, and ADSS.

Key words:

Category:

Overhead Line Fitting

Product description

Product Description

Vibration Dampers are used to absorb Aolian Vibrations of conductor of Transmission Lines, as well as ground wire, OPGW, and ADSS. It is mostly composed of the following; Weights – made up of cast iron, Clamp – made up of Aluminum Alloy, Nuts and Bolts made up of galvanized or stainless steel and Messenger cable made up of Galvanized Steel.

Vibration Dampers are used in areas of severe vibration. Dampers act to decrease aolian vibration amplitudes thereby reduce the dynamic bending stress at hardware location and extend conductor life.

These fatigues stresses have maxima at suspension and dead end attachments. They can also occur at mass discontinuities and may lead to failures of individual strands. In composite conductors (ACSR, ACCR, etc. ) it may eventually lead to failure of all aluminum layers.

How Vibration Damper Works

When a vibration wave passes the damper location, the clamp of a suspension type damper

oscillates up and down, causing flexure of the damper cable and creating relative motion

between the damper clamp and damper weights.

Stored energy from the vibration wave is dissipated to the damper in the form of heat. For a damper to be effective, its response characteristics should be consistent with the frequencies of the conductor on which it is installed.

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