Lightning Protection Systems

Lightning Protection Systems

Lightning can provide a spectacular display of light on a dark night. According to Underwriters Laboratories Inc., this awesome show of nature also causes more deaths and destruction in a typical year than floods, hurricanes, and tornadoes combined. Lightning is the visible discharge of electrical energy. It is often accompanied by thunder -- which is a sonic boom created by the same electrical discharge. This electrical energy seeks a path to ground -- your home, the trees in your yard, or even you can be that chosen path.

What Does a Lightning Protection System Do?

Provides a direct path for the lightning to follow to ground.

Prevents destruction, damage, injury, or death as it travels that path.

What Does a Lightning Protection System Look Like?

Lightning Protection Key
  • Minimum of two ground rods (electrodes) at least 10 feet deep
  • Down conductors
  • Connect gutters or other grounded metals as required
  • Dormers protected
  • Antenna mast connected to roof conductor
  • Air terminals (lightning rods) spaced 20 feet apart along the ridges and within two feet of ridge ends
  • Air terminals (lightning rods) located within two feet of outside corners of chimney
  • Roof projections such as weather vanes or satellite dishes should be connected to lightning protection system
  • Surge protection devices installed at main electrical panel or meter
  • Surge protection devices installed on electronics in house
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