GreyMatters

Electrical Earthing System Design & Soil Resistivity Testing

You are here: Home / Soil Resistivity / Soil Resistivity & Soil Resistivity Testing Methods – A few short Videos

By Leave a Comment

Soil Resistivity & Soil Resistivity Testing Methods – A few short Videos

Soil Resistivity Video(s)

Here is a collection of Soil Resistivity Video(s); some are from us, the team at Greymatters and others sourced from Youtube.  Can you spot the real guys..?
Here’s Ian of Greymatters (not feeling 100%) carrying out a field soil resistivity survey.

Soil resistivity is a measure of how much the soil resists the flow of electricity. It is a critical factor in design of systems that rely on passing current through the Earth’s surface. An understanding of the soil resistivity and how it varies with depth in the soil is necessary to design the grounding system in an electrical substation, or for lightning conductors. It is needed for design of grounding (earthing) electrodes for High-voltage direct current transmission systems. In single wire earth return power transmission systems, the earth itself is used as the path of conduction from the end customers (the power consumers) back to the transmission facility. In general there is some value above which the impedance of the earth connection must not rise, and some maximum step voltage which must not be exceeded to avoid endangering people and livestock.
The soil resistivity value is subject to great variation, due to moisture, temperature and chemical content.

Here’s a soil resistivity video from Autopedia (I think generated from Wikipedia)

Here’s Ian of Greymatters again Soil Resistivity Testing – In the mud, showing true commitment to the glamorous side of the job. A true professional.

Finally a Soil Resistivity video on field testing. Or is the guy using his garden as a demo site.

Note he’s nothing to do with Greymatters Global – We are showing his video to contrast the various styles and methods used in Soil Resistivity testing.

Your Next Soil Resistivity Project…

If you want real professionals to calculate real measurements  (even in the harshest of environments) for you next Soil Resistivity project – Contact Ian of Greymatters or talk to Ian now using the Live Chat below.

Recent Posts:

How well designed is your substation and its protection systems

Today is just another day at your local HV substation. Inside, the transformers gently hum and switchgear sit idle. Outside, a neighbour’s neglected tree loses a branch, which clashes with an overhead line. Ask yourself: What happens next? That depends on the substation design and their protection systems, which are the focus of this post. […]

I thought I’d continue from my last blog piece talking about heavy current injection earth testing. By talking about a key application where it can potentially deliver much better results than the modern CDEGS approach on your earthing arrangements. Many industrial sites were built in the 1950s and 60s as industrialisation grew. This, in line […]

Lightning Risk Assessment

Ever needed a quick response Lightning Protection Risk assessment service? Here is something we’ve tried to make incredibly easy for you to use. You can now order and pay online, and the risk assessment to IEC 62305-2 can be turned around within a week with our premium service, or two weeks on our normal service.

I recently attended a training session with Omicron in Germany, looking at their primary injection test set for earth electrode and line impedance testing. We looked at how to set up a current injection, potentially up to 100 A, down an Overhead line or Feeder cable to achieve good separation between the electrode under test […]

winter scene

Here’s a slight departure from the usual technical blog – so, the holiday’s are a distant memory, yet, the scene outside my window right now looks like something out of “A Christmas Carol”, by Charles Dickens. This time of year is a strange one for us; both December and January are truncated by the holidays […]

Reader Interactions

This site uses cookies to improve your experience. Read more.