Considerations of efficiency for internal lightning protection

An ordinary life area has numerous structures, systems, buildings, objects and components that are susceptible to lightning strikes. The effects of strikes can in-clude actuation of safety systems, and loss of living areas. Protection of critical structures and applying necessary protection measures should be determined in terms of risk, completely risk management. The paper deals with results of investi-gation on efficiency of internal protection. The attention has been paid to the effi-ciency of the shields and to their kinds, arrangement, equipotential bonding and grounding according to the concept of lightning protection zones (LPZ). 

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1. IEC 61024 series: Protection of structures against lightning. 
2. IEC 61312–1–1995–02: Protection against Lightning Electromagnetic Impulse. Part 1: General Principles.
3. IEC 61312–2–1998–08: Protection against Lightning Electromagnetic Impulse (LEMP). Part 2. Shielding of structures, bonding inside structures and earthing.
4. DEHN + SÖHNE GmBH + Co.KG., “Lightning Protection Guide”, 2nd updated edi-tion, ISBN: 3–00–015975–4, Germany, 2007, p. – 328.
5. Mazzetti C., Kuca B., Flisowski Z., “On Efficiency Of Gridlike Spatial Shields As A Measure Of Internal Lightning Protection System”, 
6. IEC 62305–4 Series.