The maximum spacing between visible notification appliances along a corridor is 100 feet.

The maximum spacing between visible notification appliances along a corridor is 100 feet.

• A. True
• B. False
• C. Not specified
• D. Only in certain corridors

Answer: (A)

Visual notification appliances must provide continuous coverage so that an occupant along a corridor is always within sight of a warned device. The standard specifies that the maximum spacing between visible notification appliances along a corridor is 100 feet, ensuring that a strobe is within line of sight throughout the corridor and that occupants can notice the alarm even if noise is low or blocked by other factors. This spacing guideline is a general requirement for corridors, not a conditional rule limited to certain corridors or left unspecified. In practice, designers still consider the actual candela rating, mounting height, and sight lines, but the 100-foot limit remains the standard maximum distance for corridor coverage.

Visual notification appliances must provide continuous coverage so that an occupant along a corridor is always within sight of a warned device. The standard specifies that the maximum spacing between visible notification appliances along a corridor is 100 feet, ensuring that a strobe is within line of sight throughout the corridor and that occupants can notice the alarm even if noise is low or blocked by other factors. This spacing guideline is a general requirement for corridors, not a conditional rule limited to certain corridors or left unspecified. In practice, designers still consider the actual candela rating, mounting height, and sight lines, but the 100-foot limit remains the standard maximum distance for corridor coverage.