Why should you have an Earthing system?

Why should you have an Earthing system?

Today’ there exist no organizations that are not using electrical types of equipment.  Using your appliances with earthing system creates a prevention layer and thus safeguards the appliances and infrastructure.

NTIPL has developed a full range of earthing products and services to defend and prevent all the assets of an organization and thus secure the infrastructure from lightning hazards. Below are a few major points to be considered about Earthing System.

What is Earthing?

  • Used to protect us from an electrical shock
  • It does this by providing a path for a fault current to flow to earth
  • It also causes the protective devices to switch off the electric current to the circuit that has the fault by the help of the fuse

Objectives of Earthing

  • Avoid potential rise of parts of equipment other than the live parts
  • Safe passage to earth for the fault current
  • Suppress dangerous potential gradients on the earth surface
  • To retain system voltages within permissible limits under fault conditions
  • Maintain the voltage at any part of an electrical system.


  • Earth – the proper connection b/w electrical installation system via a conductor to the buried plate in the earth.
  • Earthed – when an electrical device, the appliance is connected to the earth electrode. Example: plates, rod, wires, and pipes.
  • Earth electrode – when a conductor (or conductive plate) buried in the earth for the electrical earthing system.
  • Earthing conductor– the conductor wire or conductive strip connected between earth electrode and electrical installation system and the device is called earthing rod.
  • Earth continuity conductor – the conductor wire which is connected among different electrical devices and appliances like DB, different plugs and appliances, etc.

Types of Earthing :

  • Neutral earthing
  • Equipment earthing

Types of Earthing Installation:

  • Conventional earthing
    • In the conventional earthing system a metal plate, coal and salt is used for the earthing system
    • It requires maintenance and pouring of water at regular interval

Conventional Earthing SystemChemical earthing

    • Chemical earthing is the most reliable and hassle-free solution for earthing needs in both industrial as well as residential sectors.
    • The chemical earthing or gel earthing has an extra edge over other types of conventional earthing

Chemical earthingFactors affecting Earth Impedance:

  • Soil
  • Weather
  • Electrode type
  • Electrode size
  • Nearby utilities
  • Electrode in parallel
  • Distance between electrode

Earthing systems form the first line of defense in every type of electrical system. The system may be a generator/transformer/ housing installation/generating station/etc. So it is strictly advised to know the basic concepts of grounding as far as electrical engineering is concerned.

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