Electrical Earthing System Design & Soil Resistivity Testing
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.
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 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 Protection Systems. For a 9MW Energy from Waste Plant in Europe.
[Read more…] about Low Voltage & High Voltage Earthing Protection – A Case Study at an EFW PlantA number of organisations across the UK recommend a standard earthing design when building smaller scale substations. The key driver behind these is one of cost. Nobody wants to pay more than they have to. For an HV connection using a templated approach to meet Earthing Standards compliance kind of makes sense – or does it?
So, the question is – does installing a standard earthing design meet your obligations under the Electricity at Work regulations?
[Read more…] about Your Standard Earthing Design – Are They Valid Anymore?
