The distance for the array boundary is defined as 12 inches from the array in all directions.

The distance for the array boundary is defined as 12 inches from the array in all directions.

• A. 6 inches
• B. 12 inches
• C. 18 inches
• D. 24 inches

Answer: (B)

The boundary distance around an array is the safe margin that defines how far everything must be from the edge of the array on all sides. If the rule says the boundary is defined as 12 inches from the array in all directions, that means there is a uniform one-foot buffer around the entire perimeter of the array—front, back, sides, and even above and below as applicable. This consistent 1-foot offset makes planning room for wiring, maintenance access, and inspections straightforward and ensures compliance with the specified safety boundary. Therefore, 12 inches is the correct distance. A smaller or larger distance would contradict the defined boundary size.

The boundary distance around an array is the safe margin that defines how far everything must be from the edge of the array on all sides. If the rule says the boundary is defined as 12 inches from the array in all directions, that means there is a uniform one-foot buffer around the entire perimeter of the array—front, back, sides, and even above and below as applicable. This consistent 1-foot offset makes planning room for wiring, maintenance access, and inspections straightforward and ensures compliance with the specified safety boundary. Therefore, 12 inches is the correct distance. A smaller or larger distance would contradict the defined boundary size.