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Cable Spacer

Bolted cable spacers are precision-engineered fittings used to maintain fixed separation between bundled conductors in overhead transmission lines. Installed at defined intervals along span lengths, they control sub-conductor spacing to mitigate aeolian vibration, prevent conductor clashing, and preserve bundle geometry under wind and thermal loading conditions.

Manufactured from high-strength aluminum alloy or galvanized steel components with elastomeric inserts, bolted cable spacers provide secure mechanical retention while minimizing conductor surface damage. The bolted assembly design enables accurate torque-controlled installation and reliable long-term performance in high-voltage environments.

Key Features

  • Fixed Bundle Spacing: Maintains predetermined conductor separation for electrical and mechanical stability.
  • Vibration Control: Reduces sub-span oscillation and galloping in bundled conductor systems.
  • High Mechanical Strength: Designed to withstand tensile, compressive, and dynamic wind loads.
  • Corrosion Resistance: Hot-dip galvanized steel or corrosion-resistant aluminum alloy construction.
  • Elastomeric Clamping Inserts: Protect conductor strands from abrasion and stress concentration.
  • Torque-Controlled Bolted Design: Ensures consistent clamping force and secure installation.
  • Standards Compliance: Manufactured to meet relevant IEC and utility transmission standards.
  • Low Maintenance Performance: Engineered for extended service life in harsh environmental conditions.

Product Details

General

MaterialAluminum
Material – Clamping HardwareAluminum Alloy
TypeCable Spacer

Dimensions

Weight2.450 lb (1.11 kg)

Conductor Related

Conductor CompatibilityACSR-Bluebird-2156-84/19;ACSR-Kiwi-2167-72/7;ACSR-Thrasher-2312-76/19;AAC-Sagebrush-2250-91;AAC-Lupine-2500-91
Conductor Diameter – Maximum1.824 in (46.33 mm)
Conductor Diameter – Minimum1.632 in (41.45 mm)
Conductor Diameter Range1.632 – 1.824
Conductor Spacing4 in (101.6 mm)
Conductor TypeAAC
ACSR

Resources and Downloads

SpecificationsDownload PDF
Technical DrawingsDownload PDF