Electrical Safety Design

Lightning Protection Systems

How to Design Lightning Protection Systems for Buildings

Learn how to design lightning protection systems for buildings with risk assessment, calculations, IEC 62305 methods, examples, and FAQs.

How to Design Lightning Protection Systems for Buildings

Lightning is one of the most powerful natural electrical phenomena, capable of producing currents exceeding 200 kA and temperatures above 30,000°C . When a building is struck by lightning, the resulting thermal, mechanical, and electromagnetic effects can cause severe structural damage, fire hazards, equipment failure, and even loss of life. A properly designed Lightning Protection System (LPS) is therefore essential for safeguarding buildings, occupants, and sensitive electrical and electronic systems. This article provides a complete professional guide to designing lightning protection systems for buildings. It covers risk assessment, system components, design methods, calculations, earthing requirements, practical examples, and international standards. The content is structured to deliver real engineering value and practical insight for consultants, designers, and electrical engineers. 1. Fundamentals of Lightning and Its Effects Lightning is an electrostatic discharge caused by ch…

About the author

Prasun Barua is a graduate engineer in Electrical and Electronic Engineering with a passion for simplifying complex technical concepts for learners and professionals alike. He has authored numerous highly regarded books covering a wide range of elec…

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