Rolling Sphere Method Calculator Link

Attempting RSM manually for a single mast is manageable. But real-world scenarios involve:

Modern architecture rarely features flat, simple roofs. Calculators allow you to input varying heights ( ) and distances ( rolling sphere method calculator

Any point where the sphere makes contact with the building is a potential strike point that needs protection. Standard Sphere Radii Attempting RSM manually for a single mast is manageable

The is the standard technique used in electrical engineering to determine the placement of lightning protection systems (LPS). It is the core calculation method defined in international standards like IEC 62305 and NFPA 780 . Standard Sphere Radii The is the standard technique

The calculator performs a rolling sphere algorithm:

: Using the formula, the maximum distance is ≈ 18.7 m.

Below is the "full story"—from the theory and physics to the manual calculation method and the software tools used to automate it.