Electric arc: an accident that all electricians dread

This is an accident that all electrical professionals fear. It's called an electric arc (arc flash) or electric arc.

When a live electrical box explodes in a fraction of a second, the temperature can reach up to 20,000 degrees. The energy released is enormous. Anything in front of it can catch fire instantly.

The most frequent cause? A short circuit.

This often happens during repairs or when a circuit breaker is switched on. A simple tool placed incorrectly in the panel can touch two conductors… and trigger an electrical arc.

At that moment, people nearby can be seriously injured. In some cases, the temperature of the electric spark can even exceed that of the surface of the sun.

That's why experienced electricians wear specialized protective clothing, face shields, and insulating gloves. Even if an incident occurs, this equipment can make all the difference.

Electric arc: an accident that all electricians dread

Why is it so dangerous?

An electric arc can cause:

• severe burns,

• injuries to the eyes and ears,

• projections of molten metal,

• fires,

• significant work stoppages.

No one is immune, even with experience. Prevention remains key.

What can be done to reduce the risks

On the ground, there are simple but essential actions:

✔️ analyze the risks before intervening ✔️ apply lockout/tagout procedures ✔️ use isolated tools ✔️ wear the right PPE ✔️ keep a safe distance ✔️ work with inspected and compliant equipment.

Why do I place so much emphasis on equipment inspection?

A cracked insulating glove, a damaged pole, or a blanket that has absorbed moisture… these things aren't always visible to the naked eye. And yet, they can be very costly.

At ZenithLogix , we travel directly to your sites with my mobile lab to inspect and certify your dielectric equipment: gloves, poles, mats, insulating blankets, high voltage detectors and more.

Fewer stops, more compliance — mobile dielectric inspection.

Why I'm sharing this video

This video clearly demonstrates the violence of an electric arc. It's not meant to scare people—it's to remind us why this risk can never be taken lightly.

Safety begins even before you open a panel.

And you?

What methods do you use on your construction sites to reduce the risk of electrical arcs? Share your best practices in the comments...