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 include 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 investigation on efficiency of internal protection. The attention has been paid to the efficiency of the shields and to their kinds, arrangement, equipotential bonding and grounding according to the concept of lightning protection zones (LPZ).