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Home » HV Earthing Protection

HV Earthing Protection

17/01/2020 By Hugh Leave a Comment

CDEGS – Not Only Earthing Studies. Other things you never realised YOU could do!

Earthingg Studies done, but what else?

We’ve written previously about why we use CDEGS HIFREQ and (X)GSA_FD for earthing studies. Also, the reasons to invest in the top 1% of tools, knowledge and consultants. But once you’ve invested in building the model to understand what earthing is required, what are the other things you can do with this model. Additionally, answer other questions you might have?

[Read more…] about CDEGS – Not Only Earthing Studies. Other things you never realised YOU could do!

Filed Under: Electrical Earthing Tagged With: Earthing Studies, GSA_FD, HV Earthing Protection, XGSLab

09/08/2019 By Ian Leave a Comment

Earthing System Design Procedure A Probabilistic Approach

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. Whereas LV earthing is far less so. 

What do I mean?

[Read more…] about Earthing System Design Procedure A Probabilistic Approach

Filed Under: Earthing System Design Tagged With: CDEG HIFREG Software, Earthing Arrangements, earthing design, earthing systems, HV Earthing Protection, Step Potential, Step Voltage, Touch Potential, Touch Voltage

28/06/2019 By Ian Leave a Comment

Low Voltage & High Voltage Earthing Protection – A Case Study at an EFW Plant

High Voltage Earthing Protection – A Case Study at an EFW Plant

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 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 Plant

Filed Under: Electrical Earthing Tagged With: BS 7430, BS 7671, BS EN 50522, bs en 62305, BS EN62305, BS7430, High Voltage Earthing Protection, HV Earthing, HV Earthing Protection, LV earthing, LV Earthing Protection, Protective Earthing

03/09/2017 By Hugh Leave a Comment

Your Standard Earthing Design – Are They Valid Anymore?

Standard Earthing Design

A 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?

Filed Under: Earthing System Design Tagged With: BS EN 50522, BS EN 50522-2010, earthing design, earthing standards, Electrical Earthing System Design, HV Earthing, HV Earthing Protection

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