Why is stepping near energized conductors hazardous?

• A. It creates magnetic fields
• B. It causes the ground to lift
• C. Because arcing can occur through air at higher voltage
• D. It makes the wire heavier

Answer: (C)

Stepping near energized conductors is hazardous because arcing through air can occur at higher voltages. When the electric field is strong enough, air ionizes and forms a conductive channel, allowing current to jump from the conductor to you or to ground without any physical contact. This arc can cause severe burns, electrical shock, or even fatal injury. The danger is amplified by your stance: with each step your feet are at different points in space, creating a potential path for current to travel through your body from the energized point to the ground (step potential). The higher the voltage or the closer your feet are, the more likely an arc will form. Other proposed ideas—magnetic effects, ground lifting, or the wire just getting heavier—don’t explain the actual hazardous mechanism here, which is the possibility of arcing through air.