What should be the maximum distance between bonding plates used on structural steel members?

The correct maximum distance between bonding plates used on structural steel members is 50 feet. This specification is critical because proper grounding and bonding are essential for effective lightning protection and electrical safety. When bonding plates are spaced too far apart, the resistance within the bonding system can increase, which can lead to inadequate grounding performance. Placing bonding plates at intervals greater than 50 feet may not provide the necessary conductive path for fault current or prevent potential differences that could result in electrical hazards during a lightning strike or other electrical faults. Maintaining a maximum distance of 50 feet ensures that the structure has a consistent and reliable means of grounding, thereby enhancing the overall safety and effectiveness of the lightning protection system.