Earthing Measurement

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Earthing Measurement: Essential Element of Electrical Safety

Electrical safety is of great importance in all areas, from industrial plants to our homes. Grounding measurement is an indispensable component for the safe and effective operation of electrical systems. In this article, we will discuss what earthing measurement is, why it is important and how it should be done.

1. What is Earthing Measurement?

Grounding measurement is the process of measuring the electrical resistance of the connection of an electrical circuit or device to earth. Correct earthing ensures the safe transmission of electric current, helps dissipate excessive currents and contributes to the protection of devices and people. The grounding resistance is calculated by taking into account the resistance of the elements in contact with the earth and the soil property.

2. Importance of Grounding Measurement

Electrical Safety: Earthing measurement is the basic way to prevent electrical accidents. When there is no or insufficient earthing, people or devices can be exposed to danger in the event of an electrical leakage.

Device and Equipment Protection: Good earthing protects devices from overvoltage. It also reduces the damages of sudden events such as lightning or static electricity.

Fire Risk Reduction: Lack of earthing can increase the risk of fire due to heated cables or devices. With proper earthing, this risk is significantly reduced.

Legal Compliance: Many countries require industrial plants and buildings to comply with certain earthing standards. Earthing measurement enables compliance with legal requirements to be checked.

How is Grounding Measurement Performed?

Grounding measurement is performed using specialised instruments and equipment. The process usually involves the following steps:

Preparation: The safety of the device or systems to be tested must be ensured. Necessary safety precautions must be taken and test equipment must be connected correctly.

Measurement: Earthing measuring instruments are connected to the earthing element or device. The correct measurement mode is selected and measured according to the instructions of the measuring device.

Assessment of Results: The measurement results obtained are evaluated. The determined grounding resistance is checked whether it complies with the standards or not.

Regular Checks: Grounding measurement should be carried out regularly. The earthing resistance may change due to changes in the electrical system or devices.