Earthing: Why is it necessary?

Earthing - Why is it necessary

Why Earthing is necessary?

Earthing is the process of the excessive amount of fault current flow of the electrical energy directly into the ground with the help of the low resistance wire. The electrical earthing is done by connecting the non-current carrying part of the equipment or neutral of the supply system to the ground. It helps in the diversion of the excessive amount of fault current directly into the ground and ensures safety. Let us discuss the necessity of earthing.

The necessity of earthing: The reasons

The prime reasons why earthing is necessary are as follows:

  1. Secures the safety of human beings from the excessive amount of electric shock.
  2. It guarantees the safety of electrical appliances and devices from the excessive amount of electric current.
  3. Assures safety from the fire that may be occurred from the current leakage.
  4. It provides the way to default current even after the failure of the insulation.
  5. It protects the appliances from high voltage surges and lightning discharge.
  6. It provides an alternative path for leakage of current.
  7. Earthing keeps the voltage constant in the healthy phase.
  8. It protects the Electric system and buildings from lightning.
  9. Earthing avoids the risk of fire in the electrical installation system.
The necessity of earthing allows it to be used in different platforms as given below:
  • Dg Set
  • Transformer
  • Lightening system
  • Solar system
  • Datacenter
  • Railways
  • Highways
  • Refinery
  • Power plant
  • Cement plant
  • Steel plant
  • For every electrical installation

Types of Earthing:

These are some main types of the earthing system given below:

1- Plate Earthing: Plate earthing requires a plate electrode made of copper or galvanized iron buried in pits vertically more than 10 feet inside the ground. The pit gets filled with salt and charcoal. The dimensions of the ideal copper plate earthing are 60cm x 60cm x 3.18mm. The dimension for ideal galvanized iron is 60cm x 60cm x 6.35 mm.

2- Pipe Earthing: A pipe earthing system is a pipe made of galvanized steel or iron is buried vertically into the ground. The pipe earthing size depends on the magnitude of current and type of soil which includes moisture soil, sandy soil and rocky soil. Pipe earthing helps in the dissipation of faulty currents in the electrical system.

3- Rod Earthing: These rods are specially designed rods made of metal and alloys to conduct fault current. Similar to the Pipe earthing. A copper rod replaces the pipe electrode for burying a rod made of copper or galvanized iron.

4- Wire Earthing: In wire earthing, strip electrodes are buried inside these several dug trenches. These strip electrodes are a combination of copper or galvanized iron. The ground wire provides a path back to the source of the electrical current in the fault current.

5- Waterman method: The process of earthing in which waterman or galvanized Gi pipes are used is known as the Waterman method. The rod is buried inside the ground to reduce resistance in this process.

There are mainly two types of electrical earthing:

1-Neutral Earthing:

The neutral of the system is inserted into the earth with the help of the Gi wire. This process is also known as Earthing. These neutral earthing are used in the generator transformer etc.

2-Equipment Earthing:

The equipment earthing connects to the earth with the help of the conducting wire. If any fault occurs in the apparatus, the short-circuit current flows to the Earth through a wire. It protects the system from damage.

Conclusion: Why earthing is necessary?

From the above information, I hope all of you are well acquainted with earthing and the type of Earthing, and the advantage of earthing. Finally, it is safe to say Earthing is very important for the safety of human beings. And, it saves luxurious and costly electrical appliances from excessive amounts of fault current.

Our services: Renown Power System manufactures with the best electrical safety system. Chemical earthing is one of our best products with the highest selling rate and this is the product. We have manufactured with the latest technology. For further information or any order of our product.

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