| The Dogbone vibration damper FDZ is an advanced and completely new form of the accepted “Stockbridge” dampers. In addition to the two ranges covered and by virtue of the weight design and positioning on the messenger, we are able to increase the energy absorption of the damper by applying a torsional stress to the messenger. The damper is secured to the conductor by the Preformed retaining rods. This securing method has several advantages: 1. No concentrated radial stresses are set up under the clamp. 2. The complete elimination of dampers “wandering” up or down the line and causing conductor damage. 3. Installation or removal may be carried out, without shut-down of the line, by hot stick application. The design completely eliminates any moisture build up and is therefore again superior to the conventional damper as far as corrosion is concerned. The neoprene pad between damper and conductor offers the conductor protection from abrasion from the damper clamp at the attachment point. tests have shown that it is more efficient than the Stockbridge type dampers. The retaining rods are made from our usual high grade aluminium alloy performed Armour used on all preformed fittings. |
| Material: The clamp : high grade aluminium alloy. Bolts and plate: steel. The messenger : 19 strands of high stranded galvanized steel, The weights : high grade zinc alloy. |
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