ADS and Lightning Protection
ADS & Associates was formed in 1999 and has developed in conjunction with the Irish StandardIS EN 62305 and Dehn UK.
The previous BS 6651 Standard and old traditions favored cross bonding all roof installations. As Technology developed, the effects of a Lightning Strike were not given due consideration and a tendency to cross bond roof plant, still existed.
If we had frequent and severe thunderstorms in Ireland, it would soon become evident that expensive roof plant connected to high tech equipment in the building, should be isolated and protected rather than cross bonded.
It is only a matter of the time before a data centre or significant roof plant installation takes a lightning strike with serious consequences, because lightning protection was ignored or just cross bonded without adequate surge protection, on connected cables.
ADS & Associates have for many years recognized that the key is to maintain separation distance on a structure, typically PV panels and AHUs and employ the rolling sphere principle to design isolated systems, to protect roof plant and EX rated zones.
ADS crews are accredited in the installation of DEHN HVI & DEHN ISO Combi equipment which are the ideal solution and can be installed quicker, easier and often without a conventional roof grid, buried under cable trays, plant etc.
Many structures have a lightning protection grid system indicated on the tender drawings, which should not be installed if the structure is to be protected in accordance with IS EN 62305.
ADS can provide a risk assessment, design and even 3D model to indicate how a structure can be protected.