For equipment operating between 120 and 250 volts, what is the minimum clearance required?

For equipment operating between 120 and 250 volts, what is the minimum clearance required?

• A. 2 feet
• B. 3 feet
• C. 4 feet
• D. 5 feet

Answer: (B)

Safe working distance from energized equipment in the 120–250 V range is essential to reduce shock and arc hazards. Three feet provides a practical buffer for backstage workflows, giving enough space to reach controls or cords without risking contact with live parts, even with typical clutter or moisture in the area. Two feet is typically too close for a busy backstage environment, increasing the chance of accidental contact or arcing. Four or five feet would offer more protection, but for standard stage gear operating in this voltage range, three feet is the right balance between safety and operability.

Safe working distance from energized equipment in the 120–250 V range is essential to reduce shock and arc hazards. Three feet provides a practical buffer for backstage workflows, giving enough space to reach controls or cords without risking contact with live parts, even with typical clutter or moisture in the area. Two feet is typically too close for a busy backstage environment, increasing the chance of accidental contact or arcing. Four or five feet would offer more protection, but for standard stage gear operating in this voltage range, three feet is the right balance between safety and operability.