CST – Computer Simulation Technology

Designing Building Structures for Protection against EMP and Lightning


EMP is a high-intensity burst of electromagnetic energy that can potentially cause major disruption to vital infrastructure such as telecommunications, electrical power, banking and finance, emergency services, medical facilities, transportation, food and water supply. Lightning can cause significant damage by directly striking a building, when metallic structures such as electrical wiring provide return current flow in an attempt to equalize potentials.

It is essential to protect or “harden” critical facilities by stringent electromagnetic design, including shielding to block incident EMP fields, careful treatment of points of entry (POE) and diversion of lightning currents using down-conductors.

We will explore the application of CST STUDIO SUITE® to the simulation of EMP and lightning effects. Simulation will be used to analyze the shielding effectiveness of a building structure, evaluate the impact of adding personnel entryways and utility pipes and predict the transient currents induced in cable systems. The performance of EMP protection measures at the point of entry, such as filtering and clamping, will be assessed. ...

We will simulate a lightning strike to a building structure and visualize the induced current return paths. A lightning protection system (LPS) will be analyzed including the effect of down-conductor type and grounding impedance. Different positions of cable systems inside the building will be simulated and the induced shield and internal load currents predicted.

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