For all your ELECTRICAL needs in the Pretoria region
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Lightning
Protection
Earthmats
Earthmats are the foundation of proper
lightning protection. Without Earthmats you
might as well dump the lightning arrestors in
the bin.
We manufacture and install quality Earthmats
to specification. We'll design a specific earth
solution for you.
Facts About Lightning
Lightning & Lightning Protection Systems
Facts: Lightning...
Packs between 35,000 to 40,000 amperes of
current.
Can generate temperatures as high as 50,000
degrees Celsius.
Falls somewhere on the earth every second.
Travels as far as 65 kilometres.
Kills nearly 40 people each year in the RSA
and injures hundreds of others.
Can, and does strike the same place twice.
Causes millions of Rand in property damage
each year, many times resulting in fire and
total property loss.
Residential Lightning Protection
Systems
More and more home-owners are becoming
aware of the need to protect their families,
homes and property from a lightning strike.
Every year thousands of homes and
properties are destroyed or damaged by
lightning. Unprotected homes risk the
possibility of damage by fire, explosions or
powerful electrical surges. Personal injury can
often occur in an unprotected home which
has been struck by lightning. The effects of a
strike can be both emotionally and physically
devastating.
In addition to protecting your life and most
valuable possessions, a lightning protection
system can give you peace of mind.
Contemporary residential lightning protection
systems are found on thousands of homes
and are inconspicuous in design. Many
systems are installed during the construction
phase of a new home, while others can be
easily installed on an existing home.
A lightning protection system is designed to
control or redirect a lightning strike on a
specified path. The system does not prevent a
strike, but provides a safe path on which the
electrical current can safely be directed to
ground. Most importantly, a lightning
protection system will not attract a bolt of
lightning.
When considering lightning protection for
your home, we suggests contacting us as
lightning specialists.
More and more home-owners are becoming
aware of the need to protect their families,
homes and property from a lightning strike.
Every year thousands of homes and
properties are destroyed or damaged by
lightning. Unprotected homes risk the
possibility of damage by fire, explosions or
powerful electrical surges. Personal injury can
often occur in an unprotected home which
has been struck by lightning. The effects of a
strike can be both emotionally and physically
devastating.
In addition to protecting your life and most
valuable possessions, a lightning protection
system can give you peace of mind.
How does lightning form?
Lightning, a flow of electrical current between
the earth and storm clouds, occurs as varying
charges of positive and negative polarity build
up in the atmosphere during a storm. The
result is a discharge or current sent rushing
toward the earth. As this downward force
nears the earth's surface, positive charges rise
up to meet it. As the negatively charged
stepped leader thrusts toward the ground
readying to discharge its energy, its path is
erratic. Nearing the earth, positive charges are
attracted by it and strain up from roof edges,
lighting poles, antennas, etc. When the two
opposing charge systems meet, they create a
closed circuit. As the path to the ground is
completed, a flash is created.
What happens when a building is
struck by lightning?
A lightning strike to an unprotected building
can be catastrophic. Packing up to 100 million
volts of electricity and a force comparable to
that of a small nuclear reactor, lightning has
the power to rip through roofs, explode walls
of brick and concrete and ignite deadly fires.
In addition to structural damage, lightning
surges throughout power lines causing wire
damage and destruction of valuable
electronic equipment including computers,
televisions, stereos, security systems, etc.
How does a certified lightning
protection system work?
A lightning protection system provides a
designated path for the lightning current to
travel. The system neither attracts nor repels
a lightning strike, but simply intercepts and
guides the current harmlessly to ground. A
lightning protection system is made up of
several components.
Air Terminals: (a.k.a. lightning rods):
Inconspicuous slender rods installed on the
roof at regular intervals as defined by industry
standards.
Conductors: Aluminium or copper cables that
interconnect the air terminals and the other
system components.
Ground Terminations: Metal rods driven into
the earth to guide the lightning current
harmlessly to ground.
Surge Arrestors and Suppressors: Devices that
are installed in conjunction with a lightning
protection system to protect electrical wiring
and electronic systems and equipment.