Twin Spacer Damper

Features

• maintains the design spacing between subconductors under normal service conditions
• controls the levels of aeolian vibration and subspan oscillation within the internationally accepted safety limits
• preserves mechanical elastic and damping properties over the entire service temperature range and for the expected lifetime of the line
• is maintenance-free for the whole lifetime of the line
• permits movement of the subconductors in any direction without damages of spacer components and subconductors strands
• maintains a suitable clamp grip and prevent clamp loosening by means of a safety plate and a belleville washer
• guarantees high corona extinction voltage due to proper clamp design and manufacturing
• withstand minimum short circuit current of 63 kA for 1 second

Materials

• Body and clamps:
  high pressure die cast aluminium alloy
• Rubber elements:
  elastomer
• Bolts, nuts, plain washers:
  galvanized steel
• Belleville washers:
  mechanically galvanized steel
• Safety plates:
  stainless steel

Clamp options
Component codes:
B Shear head caps
S Stainless steel bolts
BS Shear head caps and stainless steel bolts

Orders with clamp options:
Orders for clamp options must be indicated with the component code of the desired clamp option at the end of the part number.