Which statement is true regarding electrical arcing?

Which statement is true regarding electrical arcing?

• A. Objects require contact to the electricity source to create an arc
• B. Objects do not have to contact the electricity source to create an arc
• C. Arcing only occurs with high voltage lines
• D. Arcing cannot occur in air

Answer: (B)

Electrical arcing is a discharge that travels through air (or another insulating medium) between conductors when the electric field becomes strong enough to ionize the air and form a conducting path. It does not require physical contact between the conductors. A spark or arc can jump across a gap if the voltage difference and the gap size allow air breakdown, and this breakdown is influenced by factors like humidity, pressure, surface roughness, and the presence of contaminants. Because the arc can occur across a gap, even objects not touching the power source can arc to it. Arcing is not limited to high-voltage lines, and it can occur in air, so the statement that objects do not have to contact the electricity source to create an arc is the true one.

Electrical arcing is a discharge that travels through air (or another insulating medium) between conductors when the electric field becomes strong enough to ionize the air and form a conducting path. It does not require physical contact between the conductors. A spark or arc can jump across a gap if the voltage difference and the gap size allow air breakdown, and this breakdown is influenced by factors like humidity, pressure, surface roughness, and the presence of contaminants. Because the arc can occur across a gap, even objects not touching the power source can arc to it. Arcing is not limited to high-voltage lines, and it can occur in air, so the statement that objects do not have to contact the electricity source to create an arc is the true one.