Visual signaling appliances must be installed at least how many inches above finished floor?

Visual signaling appliances must be installed at least how many inches above finished floor?

• A. 60
• B. 72
• C. 80
• D. 96

Answer: (C)

Visual signaling appliances, like wall-mounted strobes, must be placed high enough so their light is visible to occupants in typical viewing positions, including seated and lying down. The standard sets the bottom edge of wall-mounted visual devices at a minimum of 80 inches above the finished floor. This height helps ensure the signal isn’t blocked by furniture and remains easily visible across a range of room layouts and occupant heights. So 80 inches is the required minimum. Placing them at 60 or 72 inches would be too low for reliable visibility, while 96 inches would still be acceptable but isn’t the minimum height.

Visual signaling appliances, like wall-mounted strobes, must be placed high enough so their light is visible to occupants in typical viewing positions, including seated and lying down. The standard sets the bottom edge of wall-mounted visual devices at a minimum of 80 inches above the finished floor. This height helps ensure the signal isn’t blocked by furniture and remains easily visible across a range of room layouts and occupant heights. So 80 inches is the required minimum. Placing them at 60 or 72 inches would be too low for reliable visibility, while 96 inches would still be acceptable but isn’t the minimum height.