What is lightning protection level 1?
The lightning protection level (LPL) is generally recommended to be LPL1, which is the highest level of protection. Lightning is an atmospheric discharge of current. The lightning parameters are peak current, flash charge, specific energy and average steepness.
What IEC 62305?
Protection Against Lightning
IEC 62305 – Protection Against Lightning, is the apex level document that informs the standards for lightning protection around the world. It is a design standard that comprises of four documents that provide the lightning protection designers with the rules and regulations they require to design an LPS.
How do you calculate lightning protection?
Length of Building (L) = 60 Meter. Width of Building ( W ) = 28 Meter. Height of Building (H) = 23 Meter….Calculate Lightning Protection for Building / Structure.
| Reference Table As per IS:2309 | |
|---|---|
| Thunder Storm Days / Year | Lightning Flash Density (Flashes to Ground /km2/year) |
| 5 | 0.2 |
| 10 | 0.5 |
| 20 | 1.1 |
Do all buildings have lightning protection?
According to RC 35 ‘Protection of buildings against lightning strikes’, a risk control publication, it is not a legal requirement for all buildings and structures to have lightning protection. Some buildings are more at risk of being struck by lightning than others.
How do I know what class my LPS is?
On structures higher than 60 metres lateral air termination systems should be applied to the top 20% of the structure relevant to its class of LPS (or at least conforming to class IV LPS)….The Mesh design.
| LPS Class | Mesh Size (M) |
|---|---|
| I | 5 x 5 |
| II | 10 x 10 |
| III | 15 x 15 |
| IV | 20 x 20 |
Is lightning protection a legal requirement?
According to RC 35 ‘Protection of buildings against lightning strikes’, a risk control publication, it is not a legal requirement for all buildings and structures to have lightning protection. Installing a lightning protection system is not only about obeying any necessary regulations.
What are the types of lightning protection systems?
The 3 types of lightning protection system
- The lightning rod (simple rod or with triggering system)
- The lightning rod with taut wires.
- The lightning conductor with meshed cage (Faraday cage)
What is BS EN/IEC 62305-1 (Part 1)?
BS EN/IEC 62305-1 (part 1) is an introduction to the other parts of the standard and essentially describes how to design a Lightning Protection System (LPS) in accordance with the accompanying parts of the standard.
Is structural lightning protection integral to BS EN/IEC 62305?
In essence, structural lightning protection can no longer be considered in isolation, protection against transient overvoltages or electrical surges is integral to BS EN/IEC 62305. Structure of BS EN/IEC 62305 The BS EN/IEC 62305 series consists of four parts, all of which need to be taken into consideration. These four parts are outlined below:
What is the difference between BS 6651 and BS 62305-4 (Part 4)?
It differs from BS 6651 in as much that this new part has four Classes or protection levels of LPS, as opposed to the basic two (ordinary and high-risk) levels in BS 6651. within structures, BS EN/IEC 62305-4 (part 4) covers the protection of electrical and electronic systems housed within structures.
What does BS EN/IEC 62305 say about air termination systems?
BS EN/IEC 62305 states unequivocally that the volume or zone of protection afforded by the air termination system (e.g. air rod) shall be determined only by the real physical dimension of the air termination system.