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الحماية من الصواعق
Meaning Of Lightning
Lightning is one of the most devastating natural
phenomena. There are many discharges during
lightning storms and some of them can even
reach hundreds of kilo-Amperes.
These electrical discharges are a great hazard
for people, animals, buildings and electronic
equipment. The economical consequences of
lightning are also very important; it can cause
fire, stop the production of a factory or interrupt
critical processes. Besides, direct lightning
discharges make the current pass through the
persons and can cause burns of different degrees.
Lightning Destructive Effects
Electrical effects: equipment destruction. Ground
voltage rises and surges can damage all the equipment Connected to the electrical network.
Electro-dynamical effects: building damages.
Conductors are submitted to mechanical strengths
for being placed inside a magnetic field originated
in another conductor. They may cause deformations
Thermal effects: fires. Heat dissipation by Joule
effect can even cause fires.
Effects on living beings: electrocutions and burns.
Currents passing through during a short lapse are
enough for electrocution risk by respiratory or cardiac
arrest. Further burn risk appears.
Induction effects: within a variable electromagnetic
field, induced currents appear in every conductor.
If these conductors are connected to computers or
other electronic equipment, damages can be severe.
Standards consider that lightning protection is needed in the following cases:
· Any installation or machinery that is used for working.
· Large concentrations of persons.
· Need of continuity in production or public services.
· Areas with high lightning density.
· Very high or isolated buildings.
· Buildings contain explosive / inflammable Materials.
· Buildings contain irreplaceable heritage.
The Following Is a Schematic diagram that demonstrate some components that we use For lightning protection purposes.
This Drawing Just Illustrate some types of our products used in Lightning protection, it is not a real estate.