Final answer:
The minimum distance for visible notification appliances at the end of a corridor is typically no more than 100 feet, following the NFPA 72 guidelines, but local codes and updates to standards should be checked for accuracy.
Step-by-step explanation:
The minimum distance that visible notification appliances must be located at the end of a corridor is determined by the National Fire Protection Association (NFPA) guidelines, specifically in the NFPA 72, National Fire Alarm and Signaling Code. While these requirements can be subject to change and might vary depending on specific situations or local amendments, a common standard is that visible notification appliances should be no more than 100 feet away from the end of the corridor in a straight line of sight. This is to ensure that the visual cues for an emergency, such as a strobe light, are effectively noticed by individuals in the corridor. It is important to always refer to the latest standards and local codes when planning and installing these safety devices.