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1. The damper can not be installed to OPGW cable directly.
2. When the installation place of damper is beyond armor rod pre-formed wire, each set of damper should be equipped with one set of armor.
3. Choose damper and armour rod according to cable diameter as well as specification table.
4. For the installed damper, its head at low frequency should doward tower.
5. According to operation strain of cable, spacing and determine the quantity for each spacing.
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