Some people are concerned that lightning can actually penetrate a steel shelter.
The safety of a steel structure during an electrical storm can be explained with a little trip back to science class.
This effect is named for the English scientist Michael Faraday who invented the so-called “Faraday Cage” back in 1836. The steel cage (storm shelter) acts as a conductor by channeling through the steel providing constant voltage on all sides of the structure evenly. Since the difference in voltage is the measure of electrical potential, no current flows through the inside of the shelter. Yay for science!
Below is an example of the Faraday Cage Effect
Another great example of how this effect can keep people safe is when electrical linemen are asked to wear Faraday suits when working on electrical lines. These specially designed suits allow them to work on high voltage power lines without the risk of electrocution. The suit prevents electrical current from flowing through the body.