Key benefits

  • Designed for work at sub-transmission and transmission lines up to 765 kV (ANSI A92.2).
  • Enable bare-hand maintenance, inspection and repairs while the line is energized.
  • Part of the boom is of high strength fiberglass and inside it runs the fiber optic control system.
  • Boom tip deflection of less than 5 cm / 500 kg of applied load.
  • Desiccants inside the boom control internal atmospheric humidity.
  • A sharp-edge corona ring around the boom provides consistent voltage gradient along the length of the boom.
  • A separate fiber optic intercom system provides communications between the cage and turntable control station.
  • Boom leakage detector indicating the actual current.

Various options, e.g.:

  • Remote control system enabling the work platform to be positioned onto the energized conductor safely from the ground.
  • Material winch for the cage
  • Pressurized water line can also be integrated for insulator washing


Technical data

42 m48 m51.5 m60 m67 m
24 m24 m24 m26 m27 m
360 kg /
450 kg
360 kg /
450 kg
360 kg /
450 kg
360 kg /
450 kg
360 kg /
450 kg
4 m*4 m*4 m*4.1 m*4.1 m*
13.5 m*13.5 m*13.5 m*13.5 m*14.8 m*
30 t*32 t*32 t*36 t*42 t*
*depending on chassis

Technical data and illustrations are subject to change without notice.

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