Lightning protection improved by multiple interconnects in buildings

Two simplified models for a large building are compared for their lightning protection properties, one without and one with interconnecting conductive elements. The dimension is 69 × 19 m. At frequencies below 2 MHz, the additional elements provide a skin-effect like protection of the building interior. The benefits of the interconnections at high frequencies are the suppression of resonances and shifting these to still higher frequencies where lightning is less prominent.