Shunting Lightning Current to a Series of Down-conductors

One of the most effective ways to mitigate the effects of lightning current is to break it down instantaneously into smaller current flows that are then conducted to various down-conductors. This greatly reduces the untoward effects of lightning current (which are proportional to i2, i or di/dt), although the consequent magnetic fields become stronger. Since, […]

Basic Principles of Lightning Protection

6.1.3 Internal and External Lightning Protection The purpose of external lightning protection, which cannot avert a lightning strike, is to deflect the superheated lightning channel from flammable or otherwise vulnerable structures and to conduct the lightning current safely to ground via a conductor. To this end, lightning conductors or lightning rods that have a sufficiently […]