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Linear hardware for self-supporting insulated wires (SIW) for 0.4 kV overhead distribution lines

ZVZ 481 Clamps

ZVZ 481 clamps are designed for voltage measurement, short-circuiting, or protective grounding of lines using short-circuiting devices such as UZK-5, UZK-6, UZK-7, M5D, M6D, M7D, grounding devices like UZM, or universal short-circuiting and grounding devices UZMK-5, UZMK-6, UZMK-7 during work on insulated overhead lines (VLI). They are installed on conductive and neutral cores of self-supporting insulated wires (SIP) for the entire service life of the line, typically at its beginning and end.

Design and Features

  • Plug Contact: to access the bronze plug contact with a retainer, the insulating cap is removed. The plug contact has an opening for voltage absence verification.
  • Installation: the ability to fix the lower part of the clamps with an S17 wrench facilitates bolt tightening.

Technical Specifications

  • Nominal core cross-section: 16–150 mm².
  • Wrench size: 13 mm.
  • Weight: not more than 0,23 kg.
  • Quantity per package: 30 pcs.

Note: "M" modification clamps have metallic shear heads.