Lightning effects
Lightning protection of buildings - physics

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Lightning effects


Lightning protection of buildings - physics

Author : Alain ROUSSEAU

Publication date: July 10, 2020, Review date: November 4, 2021 | Lire en français

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3. Lightning effects

As an electrical phenomenon, lightning can have the same consequences as any other current flowing in an electrical conductor, or any current flowing through a poor conductor or insulator. Consequently, the following effects can be expected:

  • thermal effects (melting and heat release) ;

  • electrodynamic effects (forces between conductors) ;

  • electrochemical effects (galvanic decomposition) ;

  • acoustic effects (thunder).

Of these four types of effect, only the first two play a significant role in practice.

3.1 Thermal effects

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