Type No.:MAG-Dogbone Vibration Damper
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.
 
Type Sutiable conductor(mm) Dimensions (mm)
 
Messengerwire size Weight
(kg)
a h L1 L
FDZ-1
FDZ-2
FDZ-3
FDZ-4
FDZ-5F
FDZ-6F
FDZ-1T
FDZ-2T
FDZ-3T
FDZ-4T
7.0~12.0
11.0~15.0
14.0~19.0
18.0~22.5
22.0~29.0
28.0~35.0
7.8
9.0~9.6
11.0~11.5
13.0
50
50
60
60
60
60
50
50
60
60
30.7
30.7
44.7
44.7
61.5
61.5
30.7
30.7
44.7
44.7
120
130
150
160
180
180
120
130
150
160
320
350
430
470
520
520
320
350
430
470
19/1.8
19/1.8
19/2.2
19/2.2
19/2.6
19/2.6
19/1.8
19/1.8
19/2.2
19/2.2
1.8
2.3
4.4
5.5
7.1
8.3
1.8
2.3
4.4
5.5
return