Which factor increases the risk of electric shock during arc welding?

Which factor increases the risk of electric shock during arc welding?

• A. Working in confined spaces
• B. High open circuit voltage
• C. Working in the rain
• D. All of the above

Answer: (D)

Electric shock risk in arc welding rises when conditions increase the current that can flow through the body. A welding power source with high open-circuit voltage presents a larger potential for current to pass if a path to ground is created, so any accidental contact or an arc interruption can deliver a stronger shock. Working in confined spaces adds danger because there are more conductive surfaces, limited room to move away, and possible difficulties in quickly powering down the equipment, all of which can increase exposure to live parts. Welding in the rain or other wet conditions dramatically lowers skin and clothing resistance and provides a conductive path through water, so even brief contact can transmit more current. Because each of these scenarios heightens both the likelihood and the severity of an electric shock, all of these factors together increase the overall risk.

Electric shock risk in arc welding rises when conditions increase the current that can flow through the body. A welding power source with high open-circuit voltage presents a larger potential for current to pass if a path to ground is created, so any accidental contact or an arc interruption can deliver a stronger shock. Working in confined spaces adds danger because there are more conductive surfaces, limited room to move away, and possible difficulties in quickly powering down the equipment, all of which can increase exposure to live parts. Welding in the rain or other wet conditions dramatically lowers skin and clothing resistance and provides a conductive path through water, so even brief contact can transmit more current. Because each of these scenarios heightens both the likelihood and the severity of an electric shock, all of these factors together increase the overall risk.