What is the maximum distance between two buildings where lightning protection is NOT required for eight communication cables?

The maximum distance between two buildings where lightning protection is not required for communication cables is based on established standards and guidelines in the industry regarding cable installation and safety. In many codes and standards, a separation of 140 feet is often recognized as the threshold, primarily because beyond this distance, the risk of induced voltages from lightning events increases significantly, warranting additional protective measures.

When communication cables are installed between structures that are too far apart, they can become vulnerable to lightning strikes, leading to potential damage or interference. By keeping the distance at or below 140 feet, the risk associated with lightning-induced surges is minimized, and the necessity for additional lightning protection systems is reduced. This principle helps in ensuring the longevity and reliability of communication systems in the presence of adverse weather conditions.

Understanding these criteria is crucial for compliance with safety standards and to ensure the effectiveness of low-voltage installations during thunderstorm events.