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Electrical Earthing System Design & Soil Resistivity Testing

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Ask the Experts Electrical Earthing Blog

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Soil Resistivity Testing Method -The Schlumberger Array

The Schlumberger array is a geotechnical investigation method which determines the electrical resistivity of the soil. This is similar to the Wenner probe test, but it uses multiple current electrodes rather than just two. This allows for a more detailed and accurate measurement of soil resistivity.

Soil resistivity testing carried out using different methods, this is another of the three popular approaches to perform soil resistivity testing: 

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Soil Resistivity Testing Method – Driven Rod

The driven rod test is a geotechnical investigation method which determines the resistance of soil to the penetration of a rod or other penetrometer. 

The Soil resistivity is determined using different Soil Resistivity Testing methods. However the Driven Rod, described below is the last of the three most popular Soil Resistivity Testing methods we use to measure the soil resistivity.

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2022 Webinars – The Highlights!

Knowing in today’s world it’s all about time. We’ve summarise hours of technical content into this 20-minute bite-sized session, including the key highlights from the 2022 webinar series. If you missed it, watch the webinar replay here.

In this webinar we cover:

  • How hot sites come about.
  • How to reduce lightning risks associated with floating roof storage tanks.
  • Potential issues when building next to a high-voltage transmission asset.
  • New features available in the latest version of XGSLab 10.2.
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Why do I need an Earthing Study?

GreyMatters exists to protect critical assets and life, from the harmful effects of High Voltage and Lightning globally.

If we save just one life as a result of what we do…we will have succeeded.

What is an Earthing Study?

An earthing study is a type of engineering analysis that is used to determine the design and safety of the grounding system for a particular facility. There are several reasons why an earthing study may be necessary:

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