The Lightning Protection
A lightning protection system performs a simple task. It provides
a specified path on which lightning can travel. When a home is equipped
with a lightning protection system, the destructive power of the lightning
strike is directed safely in to the ground, leaving the home, family members
and personal belongings unharmed. It is important to understand
that an effective lightning protection system does not attract or prevent
lightning strike, it simply shields the home and provides a direct path
to ground for the electrical current to flow.
A lightning protection system should include all of the following elements,
which work together to prevent lightning damage.
- air terminals (lightning rods)
- conductor (cable)
- bonds with metallic bodies
- ground terminations (ground rods)
- surge arresters (TVSS or
Air Terminals- Also
referred to as lightning rods, these inconspicuous copper and metal rods
are vertically mounted on the roof at various high points on a house. Positioned
to project above the roofline, the rods are designed to intercept the
made of copper or aluminum; these cables connect air terminals to grounds.
Grounds- Main conductors
are attached to metal grounding rods, which are set at least 10 feet
deep in the earth. As current flows through the rods, the energy
is directed into the ground where the chance for injury or damage is
Bonds- The bonding
connects grounded metal objects to the main conductor cable, to prevent
any sideflashes (lightning jumping between two objects).
Surge Arresters- See TVSS
Click the picture below to
See a Typical
Click The Picture Below To See A Typical