A large electromagnetic field generated by a lightning strike can cause damage in a ways not covered by the Franklin rod. Tank battery lightning protection requires a systematic, multi-faceted approach and the very best in modern knowledge and technology. LEC has developed a number of tank battery lightning protection products, including DAS to address the primary and secondary lightning effects and to ensure maximum site and tank integrity. Visit us for more information: https://www.lightningprotection.com/tank-battery-solutions/