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Topic Title: Lightning Protection system
Topic Summary: Protection a flat slab fo underground structure
Created On: 21 December 2012 04:02 PM
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 21 December 2012 04:02 PM
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wengts

Posts: 1
Joined: 03 May 2007

Hi,
Would like to seek advice whether a flat slab over an underground depot structure at ground level would required lightning protection. The flat slab is also turf and from the hazard table calculation it does not seem to determine lightning protection is required. Thanks
 21 December 2012 04:21 PM
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OMS

Posts: 19900
Joined: 23 March 2004

I'd probably agree it doesn't need protection, but knowledge of what it contains might influence that.

Equally, an understanding if the slab also has continuous connections to the walls and floor slabs may also be a part of that analysis - ie is it effectively a farady cage sitting in the ground

regards

OMS

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