GreyMatters

Electrical Earthing System Design & Soil Resistivity Testing

You are here: Home / Soil Resistivity / Soil Resistivity Testing Background Noise

By

Soil Resistivity Testing Background Noise

Soil Resistivity Testing 10 Common Mistakes

This is a series of short posts on Soil Resistivity Testing and the common mistakes encountered, with practical advice on how to avoid Soil Resistivity Testing 10 Common Mistakes.

Soil Resistivity Testing Background Noise – Due to nearby sources of 50 Hz (or 60 Hz) current and its harmonics, electrical noise at these frequencies is expected in the measurements, particularly for the larger electrode spacings.

Conventional measurement methods can confound this noise with the measurement signal, resulting in apparent soil resistivity readings that can be an order of magnitude or more in excess of the true values. This suggests the need for equipment that uses a signal frequency other than 50 Hz and its harmonics and can efficiently discriminate between the signal filter and the background noise during Soil Resistivity Testing

A soil resistivity tester that has sufficient signal output and filtering is key when very large pin spacings or high resistivity surface material are expected.

Electrical Earthing Training – Free Trial

Do you want to understand more about Electrical Earthing System Design – Greymatters Academy is our Earthing Training site take a look or access your free trial here.

Recent Posts:

Online training for earthing

Are you feeling overwhelmed or out of your depth, well stop. Test drive our new online Training for Earthing courses. And say goodbye to PowerPoint slides forever! I don’t care how many tips and fixes there are out there on the info-web that claim to make boring training for earthing PowerPoint (PPT) slides less boring… […]

Earthing System Design A Probabilistic Approach

What are the procedures for creating an HV Earthing System Design? Also, how might these differ from an LV Earth design? Firstly, although the principles underpinning HV and LV earthing are similar, the approaches are very different. Probabilistic Approach The first huge difference is the recognition that HV electrical earthing design is probabilistic in nature. […]

Earthing System

In Electrical Engineering terms, earth (or ground) is the point of reference in an electrical circuit from which the voltages are estimated. The earthing system or to our friends over the pond; grounding system also has the function of providing a common return path for electric current through a physical connection to the geology. In […]

In the context of electrical earthing or grounding. Earthing Protection defined as the Protective Earthing of electrical installations at low voltage, i.e. <1,000V AC as described in Electrical Earthing Standards BS 7430. So, in this case, study. We take a look at a few challenges we came across while designing the HV Earthing and Lightning […]

Good news – having just finished a project to pin lovely shiny copper conductors to their supporting structures protecting their Earthing Arrangements. We’ve ended up with quite a few surpluses of the Fischer FNAII stainless pins (we call them Titan pins – part no. 044112) leftover … 3,400 to be exact! These bad boys are […]

High Voltage Earthing is one of the hot topics within the electrical system design sector. Sound advice and knowledge can really make a difference in controlling the build-budget. And the number of technical queries (TQ’s) generated. Particularly relevant on the more complicated projects. So selecting the right Electrical Earthing Consultant can make your life so […]

Reader Interactions

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