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Types of Electrical Earthing Mechanism

Various methods of electrical mechanisms are implemented depending upon the load carrying capacity of the grounding mechanism

  • IEC terminologies provides a various range earthing arrangements classifying according to their Mechanism.
  • TN network consist of three phase system and the device is connected to the earth via earth connector. It saves cost of earth connections.
  • TN-S and TT electrical mechanism consist of a separate devices connected to the power source. It is a residual current device can be used for additional protection in case of any insulation fault.
  • TN-C is provides by a PE and N type of conductors from the consuming device to the ground.
  • TN-C-S is a combination of TN-S and PEN conductors. It also provides a extra safety in case of any damage to the PEN conductor

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