Electrical Earthing System Design & Soil Resistivity Testing
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… THEY ARE STILL BORING!
But here’s the good news.
[Read more…] about Stop Feeling Overwhelmed or Out of Your Depth – [New] Online Training for Earthing CourseSince 2016, Greymatters prime purpose is to protect life. More personally, my goal is explicitly to save at least one life before I head off to the pearly gates and return into space dust.
Knowing we’re focused on saving lives through the work we do. It makes sense that everything we do supports this goal, i.e. using the top 1% software tools, with top 1% equipment by top 1% engineering talent. So that mistakes are avoided, errors eliminated, and the best chance of surviving electrocution is built-in to all our work.
[Read more…] about Why XGSLab – Not CDEGS and Why NowGround testing is typically performed in two stages. The first is conducted during the construction of a building to ensure proper installation of the electrical system. And the second involves routine ground testing to ensure the ‘actual’ arrangements perform as ‘predicted’ at the design stage. Thus, to avoid costly and fatal errors.
Electrical earth testing can be a real challenge in built-up areas. Not only are there very few soft areas to deploy the test probes, but underground cabling and conductive structures are everywhere. These two factors massively affect the measured readings leading to measured values that bear no relation to the actual electrode tested. Therefore, what follows is the Earth Testing Procedure Greymatters adopts.
Follow the guidance in HSG47. The city or town’s infrastructure produces large amounts of in-ground noise and interference. Mitigation by reading buried service/cable records; observing signs of previous excavations; and use a cable avoidance tool (CAT) can make sense of where the structures are.
[Read more…] about Earth Testing Procedures in Urban EnvironmentsWhat 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.
The first huge difference is the recognition that HV electrical earthing design is probabilistic in nature. Whereas LV earthing is far less so.
What do I mean?
[Read more…] about Earthing System Design Procedure A Probabilistic ApproachIn 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 an electrical installation, an earthing system or grounding system electrode connects specific parts of that installation with the Earth’s conductive surface for safety and functional purposes.
[Read more…] about What is an Earthing System – A Definitive Guide to Earthing Grounding Systems
