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Electrical Earthing System Design & Soil Resistivity Testing

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Floating Roof Tank Earthing Strategies – Bypass conductors for lightning

Floating Roof Tank Fires are Common

There are some 15 to 20 known Floating Roof Tank (FRT) fires per year. Floating Roof Tanks are especially vulnerable to the direct and indirect effects of lightning. Direct, or a nearby lightning strike can cause electrical current to flow across the tank shell and roof. When these lightning currents arc across the roof/shell interface, they can ignite any flammable vapours present with devastating effect.

[Read more…] about Floating Roof Tank Earthing Strategies – Bypass conductors for lightning

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Standard earthing design – are they valid anymore?

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 Standard earthing design – are they valid anymore?

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A Round-Up of The 10 Most Read Posts of 2016

Well, 2016 was an exciting year for the team at GreyMatters. So, at the end of 2015, we set goals on what we wanted to achieve in 2016. Part of the plan was to focus on establishing this blog channel as an authority on Electrical Earthing Design and Lightning Protection.  Something that can be referred to and although some of the concepts are considered complex, the style of writing is hopefully easy to read and informative.

This post is a round-up of the ten most read posts of 2016, and interestingly not all of the most read posts are initially published in 2016 (you may have missed it). [Read more…] about A Round-Up of The 10 Most Read Posts of 2016

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CDEGS – Avoid being caught-out with The Wrong Trousers

CDEGS Certified User – The Right Trousers

CDEGS Misconception

The term ‘CDEGS’ is loosely banded around a lot in our sector to deliver safe Electrical Earthing System Design when carrying out earth potential rise studies.  The trouble is there’s a lot of confusion and misinformation surrounding which version of CDEGS should be used for what application.

Generally, the misconception is that there’s only one CDEGS … wrong! [Read more…] about CDEGS – Avoid being caught-out with The Wrong Trousers

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50 Shades Freed – Unleashing CDEGS!

During my previous blog, where we explored the analogy of the car when comparing to Earthing Studies using CDEGS – if your project is a high value, critical asset, and/or infrastructure effecting large populations – then this is likely to require a more demanding level of performance in the foundational design data. [Read more…] about 50 Shades Freed – Unleashing CDEGS!

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