Part 1 introduces basic principles for lightning protection system design. Part 2 prescribes risk assessment procedures for various damage types. Part 3 details structural protection system design principles. Part 4 outlines surge protection device application rules
NFPA first adopted lightning protection specifications in 1904. Standard name changed from Lightning Protection Code to Installation Standard in 1995. 2004 edition supersedes all previous editions and became American National Standard
IEC 62305-1 is the third edition of the international lightning protection standard. Standard replaces the 2010 edition and is prepared by IEC technical committee 81. English language version published in 2024
Electrical fault occurs when abnormal voltage and current levels enter the system. Faults can damage equipment and buildings while posing safety risks. Electrical systems operate within nominal values to prevent faults
Lightning arrester conducts high voltage surges to ground. Lightning occurs when clouds reach high potential relative to earth. Thunder forms when lightning heats air, causing it to expand
World wind turbine capacity reached 529 GW by end of 2017. New wind turbines face increased lightning risks due to tall structures. Winter lightning concept introduced for first time