About RSI » Disclaimer

As lightning develops in different ways due to different atmospheric processes, perfect lightning protection is virtually impossible to provide. Practical lightning protection should be provided taking particular note of statistical considerations.

Since the atmospheric lightning discharge is a natural process subject to statistical laws of nature, no warranty (direct or implied) is (or can be) made that 100% protection is offered or delivered.

Users are warned that direct strike lightning protection is only one aspect of the overall protection strategy required for comprehensive structural, personnel and equipment safety. Correctly designed and installed low impedance earthing, elimination of earth loops, systems engineering, surge protection on power lines and transient protection of communications, data and telephone lines are essential.