Science · 6 pages · 12 min
How a lightning rod offers a path
A rod gives a stroke a metal route into the ground instead of a route through the building.
When the purchase is complete, return to the original window. It will refresh.
From the opening
A lightning rod offers a path by tying a metal point on the roof, through a heavy conductor, to electrodes in the ground. If a stroke attaches there, the current has a prepared route that is easier than wood, masonry, or the wiring in the walls. The opening covers how the rod meets a leader, why the cable must reach soil, and what a rod does not drain.
The rest of the brief — the later sections and the reading notes — opens after Stripe confirms payment.
Inside
- How the rod meets a leader
- Why the cable must reach soil
- What a rod does not drain
- Where the likely zone ends
- Where the idea stops applying
- A distinction worth keeping
Sources
- Interception of a lightning leader by a grounded rod
- A low-resistance path from the rod to an earth electrode