Which material can be used for bonding plates on structural steel members?

The correct answer is that any conductive metal can be used for bonding plates on structural steel members. The key to effective bonding is ensuring good electrical conductivity, which is crucial for lightning protection systems. Conductive metals, such as copper, aluminum, or stainless steel, facilitate the flow of electrical current and enhance the connection between the bonding plates and the structural steel. This ensures that electrical charges can be safely directed to the ground during a lightning event, minimizing the risk of damage or hazards.

Using conductive materials is essential for maintaining the integrity and efficiency of a lightning protection system. Non-conductive materials like plastic would not create an adequate bond necessary for safe electrical discharge, thus making them unsuitable for this application. Therefore, selecting a conductive metal ensures the effectiveness of the bonding plates in diverting lightning strikes safely.