Final answer:
The use of a highly pointed lightning rod is the best protection against lightning induced blasting accidents, as it channels lightning safely into the ground. Cars can also provide a safe haven during storms due to the Faraday cage effect.
Step-by-step explanation:
The best guard against lightning induced blasting accidents is the use of a lightning rod. Lightning rods are designed to protect structures by channeling the electrical energy of a lightning strike safely to the ground. These devices work best when they are highly pointed, acting as a preferential point for lightning to strike. They operate by attracting the electrical charge, which would otherwise build up on a structure, and safely diverting it into the earth before it can accumulate enough energy to cause a damaging lightning strike.
Additionally, during electrical storms, staying inside a metal vehicle can offer protection. A car acts as a Faraday cage, with the metal body of the car conducting electricity around the occupants and preventing the electrical field from reaching inside, as long as they remain completely within the car.