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Lightning Protection
Lightning damage in the U.S. costs $5 to $6 billion every year. Yet prevention costs are minimal with traditional lightning protection. Copper or other conductive rods, called "air terminals" provide set points that terminate a lightning strike, and then carry the current safely to the ground through a combination of grounding cable, wire and clamps connected to ground rods - all sold at StormGrounding.com.
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Lightning Protection - Barn Grounding

Barn cupolas topped with lightning rods remain a quaint feature of the American landscape. But barns often sit squarely in wide open areas presenting fine targets for lightning strikes. Hundreds burn down every year. Yet countless more are saved by properly installed lightning protection systems performing the age-old task of terminating a lightning strike and sending it straight into the ground, protecting the barn, the livestock, the hay and tens of thousands of dollars of farm and ranch equipment.

Lightning Protection Guide available for only $12.99!

Lightning Protection Booklet sold at cost from StormGrounding.com.

Published by the LPI, the booklet had been available online for as high as $49.00, Storm now offers the book for $12.99. >>

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Lightning and electrical contractors follow this general set of rules

1. All structures under 250 ft around should have at least 2 groundings.
2. If the structure is more than 250 ft around please add 1 ground per 100 ft.
3. Treat all structures the same whether they are metal buildings, timber framed barns, residential homes.
4. Cables need to be neatly laid out with no loops, dips, hard 90 degree turns.
5. Do not mix metal types! If you have copper roofs use copper hardware, cable, lightning rods and the same goes for Aluminum with aluminum roof applications.
6. Aluminum hardware should never be installed under the ground.

Design Rules

A. Space rods evenly, no more than 20 feet apart.
B. End rods should be no more than than 2 feet from the end (1 foot is typical).
C. Fasten cable every 3 feet.
D. Connect vents and antennas with clamp or lug if within 6 feet of the lightning wire.
E. For a neat job run the down cables next to down spouts, molding, etc. and connect to ground rods (make connection below ground).

 

REMEMBER: Each lightning protection installation is unique. The guidelines above are for general applications and it should not be assumed that these guidelines reflect the correct way to provide lightning protection for your structure.

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Links to other Lightning Protection Guidelines

UL (Underwriters Laboratories) Installation Guidelines
Residential Lightning Protection and Grounding
Arborist (Tree-Top) Lightning Protection and Grounding

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