A Critical Review of Lightning Protection Systems: Science, Standards, and Safety

This video provides a comprehensive analysis of lightning protection systems, examining the scientific principles, regulatory standards, and safety implications of various technologies. The central thesis of this paper is that the installation of a lightning protection system does not increase or decrease the probability of a lightning strike to a structure. Instead, the primary purpose of a properly designed and installed lightning protection system is to provide a safe, low-impedance path for the immense energy of a lightning strike to follow to the earth, thereby preventing damage to the structure and its contents. A secondary purpose of an LPS is to provide
electromagnetic interference (EMI) protection, as it functions as an effective Faraday cage. This paper will demonstrate that traditional Franklin-style lightning protection systems, designed and installed in accordance with established standards such as NFPA 780, provide the most effective and scientifically sound method of lightning protection. Conversely, this paper will present evidence that non-conventional systems, including Early Streamer Emission (ESE) systems, Charge Transfer Systems (CTS) or Dissipation Array Systems (DAS), and active voltage shield systems, are not
supported by scientific evidence, have been repeatedly rejected by standards organizations, and in some cases, have been proven to be dangerous. The paper will conclude with recommendations for the implementation of effective lightning protection strategies based on proven science and established standards.