What is the maximum interval allowed for connecting horizontal lightning conductor runs to reinforcing steel?

The maximum interval allowed for connecting horizontal lightning conductor runs to reinforcing steel is 100 feet. This requirement is established to ensure effective grounding and bonding of the lightning protection system. Proper connections to reinforcing steel help to create a low-resistance path for lightning currents, minimizing the risk of damage to the structure and maintaining safety.

When the distance between connections exceeds the specified interval, there is an increased potential for a higher resistance path, which could lead to ineffective lightning protection. Hence, maintaining a maximum distance of 100 feet are crucial for ensuring that lightning currents are safely directed into the earth, thereby reducing the risk of equipment failure and structural damage caused by lightning strikes.