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Lightning design for buried cables – really?

Continuing the theme for lightning design. I was having a technical discussion with a delegate, during a seminar in Germany. The question popped up regarding Lightning design on an AD plant (AD = anaerobic digestion). This site, with long-buried cable-runs, between plant areas. The delegates question, “What about the buried cables?”

What do we do about Lightning protection for buried cables in Lightning design?”

The question was not aimed at surge protection, but at physical protection of the cables from a direct lightning strike.  And, before you say what? Yes, buried cables are at risk from direct strike attachments.

[Read more…] about Lightning design for buried cables – really?

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Lightning Risk – Looking ahead at future trend

Lightning Risk. In a world increasingly driven by quantitative Risk Assessment (QRA) techniques it’s important to understand what the predicted impacts are as a result of our current trajectory (as humans), i.e. the direction of travel that the population of planet earth seems to be following – in terms of climate change:

Increasing Lightning Risk trend

From recent research. Some in the Lightning community are predicting strike frequency increasing by +12% to +24% : the phenomenon appears to be worsening with climate change (2016). [Read more…] about Lightning Risk – Looking ahead at future trend

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When Lightning Strikes – Is it safe to … carry on normal living, during a thunderstorm?

When lightning strikes during thunderstorms, do you wonder if it’s safe to carry on normal living?

Is it Safe to watch TV during a thunderstorm?

If your home is equipped with an external and internal lightning protection system and appropriate surge protective devices, you can watch your favourite TV show without risk during the thunderstorm.

[Read more…] about When Lightning Strikes – Is it safe to … carry on normal living, during a thunderstorm?

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When Lightning Strikes … Making Life-Saving Decisions at Lightning Speed (part 2)

Lightning strike part 2

While wind surfing

There is absolutely no protection on a surfboard. Head for the shore at the first sign of an imminent thunderstorm and seek shelter.  If there is no time left, put down the mast and crouch down on the surfboard.  This does not eliminate the danger however, it is considerably reduced. [Read more…] about When Lightning Strikes … Making Life-Saving Decisions at Lightning Speed (part 2)