What does crossing the Prohibited Approach Boundary require?

• A. It Requires The Same Protection As Direct Contact With A Live Part.
• B. It Allows Contact With Non-Live Parts.
• C. It Is A Boundary Used Only For Inspectors.
• D. It Is Around The Building For Aesthetic Reasons.

Answer: (A)

Crossing the Prohibited Approach Boundary means you must take the same protections as if you were directly contacting a live part. This boundary sits closest to energized components, where exposure to shock or arc flash is most dangerous, so any closer approach requires proper PPE and procedures to prevent harm. In practice, that means using appropriate insulating PPE (like rated gloves and arc-rated clothing), protective eyewear or face shield, and possibly insulated tools or other safeguards, or ensuring the equipment is de-energized and properly isolated before work. This rule applies to anyone working near energized parts, not just inspectors, and it isn’t about touching non-live parts or about aesthetics.