Surrounding every power line is referred to as the?

• A. Safe zone
• B. Exclusion zone
• C. Minimum approach distance
• D. Absolute limit of approach

Answer: (D)

The boundary being tested is a fixed, non‑negotiable limit that defines how close you may approach a power line. This is the absolute limit of approach—the formal edge of safe proximity that must not be crossed. It sets the strict distance you must maintain to prevent electrical hazards such as arcing or shock, regardless of other conditions. Other terms describe different safety concepts: an exclusion zone is a broader area where entry is restricted to protect people and equipment; the minimum approach distance is the smallest permissible distance under normal operations; a safe zone is a general notion of a risk-free area but does not denote this specific regulatory boundary. Keeping outside the absolute limit of approach ensures you stay within the legally and physically safe envelope around energized lines.