How far should you lift the electrode from the skin when sparking?

How far should you lift the electrode from the skin when sparking?

• A. 0.3 inches (7 mm)
• B. 1 inch (25 mm)
• C. 0.1 inch (2.5 mm)
• D. 0.5 inch (12.7 mm)

Answer: (A)

Keeping a controlled sparking distance is essential. When using a spark electrode, the goal is to create a brief, safe arc without the electrode touching the skin. About 0.3 inches (7 mm) off the skin provides the right balance—close enough for a reliable spark to form, but not so close that direct contact or excessive heat occurs. If the electrode is only 0.1 inch away, the arc can be too intense or you risk skin contact; if it’s farther, like 0.5 inch or 1 inch, the arc may not form reliably and the treatment won’t deliver the intended energy. So, the recommended distance is roughly 0.3 inches.

Keeping a controlled sparking distance is essential. When using a spark electrode, the goal is to create a brief, safe arc without the electrode touching the skin. About 0.3 inches (7 mm) off the skin provides the right balance—close enough for a reliable spark to form, but not so close that direct contact or excessive heat occurs. If the electrode is only 0.1 inch away, the arc can be too intense or you risk skin contact; if it’s farther, like 0.5 inch or 1 inch, the arc may not form reliably and the treatment won’t deliver the intended energy. So, the recommended distance is roughly 0.3 inches.