Lightning Risk Assessment and Structural Protection
Expected Outcome: At the end of this course the participant will be able to do a risk analysis to calculate the risk index and decide the level of protection applicable to a given building, design a comprehensive external lightning protection system, address safety issues related to buildings and select suitable materials and devices for the installation.
Risk analysis and safety management
Inspection and analysis of risk environment of various installations, Cost benefit analysis, Calculation of lightning risk factors and recommendation of the level of protection according to IEC 62305-2 (2006), a short review on BS 6651-1999 (now suppressed) for simple risk assessments.
The basic concept of structural protection
The preferred point of interception against lightning dissipation/elimination etc., Potential building and power dissipation in the current path, Conceptual contradiction between the IEC 62305-3 and French Standard NF C 17-102 / Spanish Standard UNE-21186.
Designing of air-termination system
Analysis and calculation of rolling sphere (electrogeometric) model, mesh method and protective angle technique. A brief account on discarded models (collection volume method, dissipation array, etc.), positioning of air-terminations depending on roof types, materials and costing.
Down conductors, Earthing and Bonding
Designing and positioning concerns of down conductor systems, Designing of earthing network, Equipotential bonding and calculation of minimum separation for prevention of arcing and dangerous potential development, Use of reinforcement steel and foundation earth for lightning protection, Isolated protection systems, Materials, installation technologies and costing,
Discussion and tutorials
Risk assessment of a given installation, Q & A on critical structural protection issues, Designing of structural protection system for an industrial building complex.