earthing with multimeter

when it comes to electrical safety, everyone cares a lot about earthing. Many Peoples find it difficult How to check earthing with multimeter?. Multimeters are valuable troubleshooting tools while checking the grounding or earthing. Use a multimeter to test the voltage for earthing test.

It doesn’t matter whether you are a newbie or a beginner, This article will guide you in detail about checking the grounding with a multimeter.

What is Earthing?

Earthing is also known as grounding, is a process in which discharged electricity from any outlet or appliance is transmitted into the ground rather than to someone who came into contact with a faulty wire accidentally.

How to Test a Circuit Breaker with a Multimeter

How to check earthing with multimeter?

checking earthing with Multimeter

We are checking the earthing of home appliances. There are the following steps involved in checking to earth with a multimeter.

  • Set the Voltage

For checking to earth what you all have to do is set the voltage to 500V AC. We always have to set the voltage greater than the measured voltage.

  • Connect the Probes

There are two probes in multimeter i-e red and black. we have to connect the red probes at the terminal that is labeled with Ω, V, or +, and the black probe has to connect at port labeled – or COM. Keep in mind never connect the probes to the wrong terminal because it can damage your meter.

  • Check reading

For checking, reading ensure the following things

  1. Take reading while the leads are in a live port and a neutral port of an appliance.
  2. Make sure to hold the leads from insulation otherwise there are chances of electric shock.
  3. Take the end of the red probe and put it in the live port. This port will be in a small size.
  4. Likewise, Take the black probe and put it in the neutral port. This is large.
  5. Check the voltage reading on your multimeter.
  6. Now note down the reading. it will be up to 230V.

The size of the port can be varied for different boards. some boards have the same size for neutral and live while others have different.

How to test ECU with Multimeter?

  • Check to earth with a multimeter

After connecting probes at the required terminal now it’s time to check to earth.

  1. Take the red probe and insert it in the phase slot.
  2. Likewise, take the black probe and insert it in earthing.
  3. Always, the size of the earthing slot will be large as compared to live and neutral.
  4. Note down the reading.
  5. If this voltage will be nearly equal to the phase to neutral voltage then our appliance is properly earth.
  6. Moreover, if the reading between the live port and earthing port is close to 0, your appliance does not have any earthing.

After reading this article “ How to check earthing with multimeter?” you will be able to test earthing of any appliance. We have tried to cover each aspect of the earthing test with a multimeter and will look for more and try to add those in the next update. Have you found anything interesting or Do you have any questions?. Let us know in the comments section below.

Frequently Asked Questions(FAQs)

Do you want to know more about earthing read these questions

How do you test ground with a multimeter?

To test the ground with Multimeter

  • Set the voltage level. For 220V AC we must select 500V or greater.
  • Insert the red probe in phase port.
  • Also, insert the black probe in the earthing slot.
  • Always, the size of the earthing slot will be large as compared to live and neutral.
  • If the voltage is equal to the phase to phase to neutral voltage then our appliance is properly earth.
  • Moreover, if the voltage between the live port and earthing port is close to 0, your appliance does not have any earthing.

How many ohms is good ground?

It will be between 0 to 5.0 ohms. Ideally, the ground will have 0 ohms resistance. But as per NFPA and IEEE ground resistance value must be 5.0 ohms or less.

How do I know if my ground wire is grounded?

  • Check the voltage between phase and neutral.
  • Now check the voltage between ground and phase.
  • If these two voltages are nearly equal then the wire is grounded.

How is the ground voltage measured?

To measure the ground voltage

  • Rotate multimeter knob to voltage.
  • Connect the red probe with phase.
  • Now, connect the black probe with ground.
  • Check the voltage on Multimeter.

By inham

Inhamullah Jadoon is an Electrical Engineer and Founder of geekyengineers.com. He has huge experience in the field of Engineering and assisting Engineers in Software and Hardware issues.

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