Can a television or radio antenna bonded to a lightning protection system prevent lightning currents from entering the structure?

Bonding a television or radio antenna to a lightning protection system is a protective measure that helps manage lightning currents, but it does not guarantee full protection against all lightning activity. While bonding does create a path for lightning to follow to the ground, it cannot completely prevent lightning currents from entering structures. There are numerous factors, such as the design of the structure, the antenna's height, and the location of the grounding system, that influence how effectively the lightning protection system can mitigate lightning strikes.

Furthermore, lighting can induce voltages and currents that can still affect connected systems even when they are bonded to a protection system, meaning that additional protective devices, such as surge protectors, might still be necessary to ensure comprehensive protection against transient voltage surges. Thus, while bonding can reduce the risk, it will not completely eliminate the possibility of lightning currents entering the structure.