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PFISTERER Ges.m.b.H.

PFISTERER Ges.m.b.H.

PFISTERER Ges.m.b.H.

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Cable Spacers / Spacer Dampers by PFISTERER Ges.m.b.H.

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Best Solution for Each Bundle Configuration

For high voltage transmission lines, conductor bundles are used for each phase to fulfil electrical requirements.
Spacing devices are installed on the bundles to maintain subconductor separation. Elastic and damping elements are introduced into the spacing devices for distributing the damping effect along the spans which prevents
entrapment of vibration between Spacer Dampers and avoids bending stresses at the clamps.

PFISTERER has been developing Spacer Dampers since 1980 to provide the correct damping of wind-induced vibrations for bundled conductor lines.

Modern Spacer Dampers are characterized by an accurate coordination between the inertial and elastic damping properties. This provides maximum effectiveness in controlling the levels of subconductor motions.

Features

  • Maintain the design spacing between subconductors under normal service conditions
  • Control the levels of aeolian vibrations and subspan oscillations within the internationally accepted safety limits
  • Preserve mechanical, elastic and damping properties over the entire service temperature range and for the expected lifetime of the line
  • Maintenance-free for the whole lifetime of the line
  • Permit movement of the subconductors in any direction without damaging the spacer components or the subconductors strands
  • Maintain a suitable clamp grip
  • Guarantee high corona extinction voltage due to proper clamp design and manufacturing
  • Withstand minimum short circuit current of 63 kA for 1 sec

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