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Earthing Devices and Accessories

Earthing and short-circuiting devices are portable equipment for temporary earthing or earthing and short-circuiting of disconnected or isolated switchgear installations.
The aim of earthing and short-circuiting of disconnected or isolated parts in electrical installations is to prevent voltages and electric arcs in the event of an accidental re-closure or when currents are coupled into the system by adjacent energised installations.
Customers should bear in mind the following aspects:

  • Type of switchgear installation(s)
  • Length of cables, or distance between phase and earth
  • Type of neutral point connection of the installation
    (whether or not solidly ground)
  • Type of connection parts and determination of connection points on conductors
  • Rated short-circuit time tr
  • Rated short-circuit current Ir
  • Rated short-circuit peak factor

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