Basics of Lightning Protection and Earthing/Grounding | IEC 62305
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- Опубликовано: 16 июн 2024
- Visit our website www.axis-india.com to learn more.
Lightning is an awe-inspiring natural phenomenon that can discharge up to 200,000 amps in a fraction of a second, thus making Lightning Protection imperative for modern structures. A direct strike can have devastating effects on people, buildings and the natural environment. Especially during stormy seasons, we witness numerous accounts of people losing their lives due to lightning strikes. Beyond this obvious impact of lightning, the voltage spikes that accompany even indirect strikes can be catastrophic to a building’s electronic systems. With the advent of sensitive electronic equipment in our everyday life in recent times, the importance of proper protection has become extremely critical.
The first step in designing a lightning protection system is Risk Assessment. Lightning Risk Assessment uses a range of factors from the structure such as the height of the structure, number of incoming power and telecommunication lines, electrical systems, number of people occupying the structure, sensitivity of the equipment inside and many other factors to determine the risk that your structure faces.
Using the class of lightning protection decided from the Risk Assessment step, lightning protection system design can be done using the Rolling Sphere, Protection Angle method or the Mesh method. The system design will provide information such as location of the lightning arresters, down conductors, earth electrodes, other equipment and the complete Bill of Material.
After the correct system is designed in the first two steps, an experienced contractor should be used for the physical construction. An Mechanical, electrical and plumbing (MEP) contractor with experience of installing lightning protection systems can use the CAD drawings provided by the designer to complete the project as per the specifications to ensure safety for your structure.
As you have read above, assessing, designing and finally constructing a safe and reliable Lightning Protection System is not an easy task. It requires many measurements, calculations, and experience to execute perfectly. In addition to the products and 25 years of experience that Axis offers, we also offer a software suite which will help simplify all your lightning protection calculations so that you can put your head towards providing the best service for your clients. Axis can also help you with the entire process from Step 1 of Risk Assessment, to Lightning Protection System Design and all the way through supply of internationally approved products. Our engineers will be on the field with you to make sure that they provide the most precise protection for your structure!
For more information on our Software Solutions or our Risk Assessment and System Design, please contact us!
You can read more about lightning protection systems and earthing systems with the following links:
• Introduction to the basics of Lightning Protection and Earthing and the Standards (IEC 62305 and UL 467) - axis-india.com/2018/06/16/intr...
• Lightning Protection System Design and Products - axis-india.com/2018/07/27/ligh...
• Surge Protection Devices (SPD) - axis-india.com/2018/12/08/surg...
• Lightning Protection Zones and their Application to SPD Selection - axis-india.com/2018/12/29/ligh...
• How does a Lightning Arrester work? - axis-india.com/2019/12/17/how...
• What causes Lightning? Why do we need Lightning Arresters? - axis-india.com/2020/03/19/wha...
For more information, please contact us at www.axis-india.com/contact-us/
#lightningprotection #earthing #grounding 
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Great!
Nice bro
Conductor wire touching with biuliding or no touching
Hello Axis... Could I downloaded your video??and share your video in my RUclips channel
Is the most effective position for the lightning trap terminal on the centre of roof?
The main thing to consider is how much area we are covering as ultimately our main aim is to protect whole structure. The advantage for centre installation is that we can cover all four areas of the structure. However, we need to make sure that the whole structure is covered and if it doesn't happen with one air rod then we need to install another rod to cover the rest of the structure. The decision on where to install the other rod will depend on the method of LPS you use.
One is not enough. How many must you place to be safe? It depends on a lot of factors. The basic idea can be imagined like this: "Imagine that you are placing a fabric on top of each lightning rob forming a tent that covers the entire roof of a building. The fabric must not touch the roof or other stuff such as antennas, solar panels, chimneys, etc but it much be higher than them. The fabric can also bend downwards if there are not enough lighting robs holding it correctly. So the idea is put enough in such a way that this imaginary fabric shield is high enough and stretched enough so it can cover the entire building including antennas, solar panels, chimneys, and anything else that lives in your roof without touching them". The design of such a system that is cold the Collecting System (Collects the lighting current) is a process that needs to be learned correctly and requires a lot of Electrical Engineering knowledge like circuit theory, mathematics, electromagnetic physics, and more. Even if you will never apply electromagnetic physics to design such systems, you need the theoretical background to know exactly what is going on in these kinds of phenomena.
is that sanket matre's voice??
When using a aluminium down conductor and copper earth electrode can we install a separate test clamp and a bimetallic connector? At what height above ground? can one just use the bimetallic connector as a test clamp and leave out the test clamp?
Hey Francis,
The test clamp should be a bimetallic connector or stainless steel connector with an intermediate plate between aluminium and copper. The point is aluminium and copper should not touch each other as it leads to galvanic corrosion.
When speaking about aluminium and earth rod, aluminium should not be in touch with the soil itself as it leads to its corrosion, therefore we convert aluminium to copper coated bonded conductor or strip converts aluminium to copper coated bonded conductor or strip from the test joint points itself.
Test joint clamps are installed at a height of 1 meter from ground level. Also, it is recommended to have the test joint clamps inside a plastic enclosure. Earth rods can be connected using copper clamps or stainless steel clamps.
Hello Axis Electrical Components, Can I get the composition for Earthing protection systems
like How much of 100% share for the following system
Air terminal
Conductors
Earthing Rods
Cable Glands
Cable Lugs
Bars and Fittings
Just research negga
All this type of vids are cases when you need to sell far more than just a rod of metal.
You sound similar to movie dubber
How To Get user name or password
Hey! You can send us an email:
enquiries at axis-india.com
Why waste so much money and material and then maintenance cost on roof mesh construction when you can put single $10 or $20 worth metal post into the ground nex to the building which will be at least 1 meter higher than the building? For $100 you could use copper rod which would not require maintenance.
The first step in any Lightning Protection Design is Risk Assessment. Each structure owner takes a call on how much risk they’re willing to take.
All these protection methods and international standards have been made after decades of testing, RnD and failed protection measures where houses have burnt down or equipment was damaged.
In the end, it’s your choice on how much protection you want. Or it’s decided by your national building code.
Roof Mesh Construction is important for a building's protection. A single $10 or $20 metal post cannot ensure the safety of a structure.
Also, a single copper rod cannot safeguard the structure, you will need approximately 4 Copper Rods & 4 Air Terminals.
Plz tranlate in punjabi
Is this technology is fake or real ? I am still learning, IQ 120 not as much as Eistein 300.
This technology is real and is in use across the world as per the correct practices defined in IEC 62305.
@@AxisElectrical just started dealing with it in my job, and it's real alright. Feel like I've stepped into another realm, running parallel with my own. Was always there, never appreciated it. Trying to learn more and this short video is a good rundown. Cheers Axis.