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Transmission Line Connection Elements

Transmission line connection elements; the complete set of special fittings and apparatus used to mechanically transport the conductor, ground wire (OPGW/steel), insulators, and tower hardware; electrically connect them; protect them from effects such as vibration/corona; and ensure safe operation. Typically manufactured from hot-dip galvanized steel, aluminum alloy, or stainless steel; selected based on voltage, conductor type, and site conditions.

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154kV Sets

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380kV Sets

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500kV Sets

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Other

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Main Product Groups and Examples

Suspension and Carrying Equipment

  • Suspension Clamp (Suspension Sets): Carries the conductor and reduces rotation/fatigue.
  • Front Winding / Armor Rods: Protects the conductor against abrasion and bending.
  • Yoke Plates, Shackles, Clevises, U-Bolts: Secure transfer between insulator–clamp–tower.

Pull and Anchor (Dead-End) Hardware

  • Anchor (Pull) Clamps / Wedge & Preformed Dead-End: Secures the conductor against pulling force at line ends or corners.
  • Tensioning Hardware (Turnbuckle, Puller): Fine adjustment and alignment.

Electrical Connections and Additional Elements

  • Compression Splice: Connects conductor ends with low resistance.
  • PG Clamp, T-Connector: Jumper/disconnection and bridge connections.
  • Cable Boot, Terminal Accessories: Busbar/equipment terminations.

Protection and Damping

  • Vibration Dampers (Stockbridge): Suppresses wind-induced aeolian vibration.
  • Spacer / Spacer-Damper (Conductor Bundle): Stabilizes phase bundle spacing, reduces collision and oscillation.
  • Corona/Voltage Grading Ring: Reduces corona losses and electric field intensity at high voltages.
  • Arcing Horn: Diverts arcing away from the insulator during overvoltage.
  • Warning & Marking Accessories: Airway warning sphere, bird deterrent/bird deflector.

Insulator Chain and End Fittings

  • Glass/Composite Insulators: Insulates line voltage from the ground.
  • End Fittings (Ball-Socket, Clevis-Socket, etc.): Insulator–connection element spacers.

OPGW/ADSS and Ground Wire Accessories

  • OPGW Suspension/Anchor Sets, Pre-Winding: Secure transport/termination of fiber ground wire.
  • Down-Lead Clamp: Secures cable descent along the pole.
  • Splice Closures/Joint Boxes, Grounding Clamps.

Tower Hardware and Connectors

  • Bolt–Nut–Washer Sets, Gear Shaft, Cable Clamps: Mechanical joining and fastening elements.
  • Jumper Hanger Brackets, Cable Carriers.