Are you safe in a car struck by lightning?

By dpa | 14 August 2017


BERLIN: Lightning strikes on cars with people inside have been covered in media reports many times before but it bears repeating for the forgetful and the inattentive.

A direct lightning strike on a car will not harm the occupants, said ADAC, Germany’s largest automobile club. This is because the car functions like a Faraday cage: the metal body diverts the electric charge, which can sometimes carry several hundred million volts, directly into the ground.

This is also generally the case for convertibles; almost every convertible top is equipped with metal rods that redirect electric currents. The windscreen frame, rollover bar and roof mechanics also help out (of course, the convertible top must be closed).

In any car caught in a storm, occupants should close the windows, retract all antennas if possible and avoid touching any metal parts that are in contact with the car's body. The ADAC does not point to any specific or additional risks for electric cars.

If lightning strikes the vehicle directly, it can cause damage to the electronics, paint or tyres. The ADAC advises having tyres inspected at a specialist workshop after a lightning strike.

It's also safe to stay in most motorhomes or caravans when thunder and lightning strike. But beware: models made entirely of plastic, such as those using glass reinforced plastic construction, do not provide protection. However, according to the ADAC, an aluminium outer layer or a plastic covering on a metal frame will also act like a Faraday cage.

When a thunderstorm threatens on a caravan trip, be sure to close the windows, doors and folding roofs, and pull in any power cables mounted outside.

Any contact with water, such as showering and washing dishes, is a no-go. It's also wise to avoid touching metal parts in the interior, or letting your head touch the metal roof. Staying in the cab is also safe, unless it is made of glass reinforced plastic.

Keywords