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Working principle of early discharge lightning rod:
The working principle of thepre-discharge lightning rodis to generate a faster upward leader than ordinary lightning rods.
When the lightning cloud layer is formed, an electric field (atmosphere) is generated between the cloud layer and the ground, and the electric field strength can reach 5 kV/m, so that corona discharge begins to appear on the raised part of the ground or on the metal parts.
When a descending leader is formed inside the thunder cloud layer, the lightning shock begins. The charges of the descending leader move to the ground in the form of steps, and the charges carried by the descending leader cause the ground to establish an electric field.
An upgoing leader is generated from a building or object on the ground, and the upgoing leader propagates upward until it meets the downgoing leader. At this time, the lightning current flows through the formed channel, and other buildings on the ground may generate several upward leaders, and the first upward leader that meets the downward leader determines the location of the lightning shock.
Working characteristics of lightning rod for early discharge:
2.1. Under the same conditions (height), the protection range of the pre-discharge lightning rod is larger than that of the ordinary lightning rod.
2.2. The lightning strike is more accurate, which reduces the probability of the lightning strike point falling on a non-lightning rod body.
2.3. Safe and reliable: no radioactive elements, stainless steel material, corrosion resistance, strong wind resistance.
2.4. Maintenance-free: passive, no power supply, no energy-consuming components.
2.5. Simple installation: light weight, no need to install coaxial shielded cables.
Technical parameters
型号 |
| Directions |
ELETEK-LD2600 | 22 | With 2sets of ion generators |
31 | With 4sets of ion generators | |
ELETEK-LD2800 | 43 | With 6sets of ion generators |
Class I Lightning-Protected Buildings | Height from the sky of the protected object to the tip of the lightning rod h(m) | |||||||||
2 | 3 | 4 | 5 | 6 | 8 | 10 | 20 | 30 | 60 | |
ELETEK-LD2600 | 14 | 19 | 28 | 39 | 40 | 40 | 41 | 42 | / | / |
ELETEK-LD2700 | 18 | 24 | 36 | 49 | 49 | 50 | 50 | 51 | / | / |
ELETEK-LD2800 | 26 | 39 | 49 | 61 | 61 | 62 | 62 | 63 | / | / |
Height from the sky of the protected object to the tip of the lightning rod h(m) | ||||||||||
Type | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 20 | 30 | 60 |
ELETEK-LD2600 | 22 | 30 | 44 | 54 | 54 | 56 | 57 | 62 | 65 | / |
ELETEK-LD2700 | 27 | 37 | 54 | 65 | 65 | 66 | 67 | 72 | 75 | / |
ELETEK-LD2800 | 31 | 44 | 62 | 78 | 79 | 80 | 81 | 84 | 81 | / |
ClassⅢ Lightning-Protected Buildings | Height from the sky of the protected object to the tip of the lightning rod h(m) | |||||||||
Type | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 20 | 30 | 60 |
ELETEK-LD2600 | 24 | 34 | 48 | 61 | 62 | 63 | 65 | 72 | 76 | 82 |
ELETEK-LD2700 | 28 | 38 | 56 | 72 | 73 | 75 | 76 | 82 | 86 | 91 |
ELETEK-LD2800 | 33 | 45 | 69 | 87 | 88 | 89 | 90 | 95 | 99 | 103 |
Working principle
The pre-discharge lightning arrester leads and attenuates the lightning current in advance, weakens the leakage intensity of the lightning current, thereby weakening the surrounding electromagnetic induction intensity, and greatly reduces the degree of interference of metal lines and electronic equipment in the nearby area. After lightning strikes, the pre-discharge lightning rod can effectively convert the possible lightning current of several thousand amps to hundreds of thousands of amps into the ground through the impedance converter, avoiding the strong current of the traditional lightning rod after being connected to the ground. The resulting secondary effect weakens the counterattack of lightning current entering the ground and the induced overvoltage caused by strong electromagnetic interference.
Precautions for installation
5.1. Select the lightning rod according to the area and height of the protected building, the day of the thunderstorm where it is located, the correction coefficient of the geographical environment, and the nature of the building, and determine the height of the pole of the lightning rod.
5.2. When the current-limiting lightning rod is installed, the components must be connected reliably. After the installation is completed, the joints or the metal surface coating with damage should be treated with anti-rust treatment.
5.3. The lightning rod should be connected to the lightning protection belt or the ground grid on the parapet wall through the down-conductor, and the grounding resistance value is required to be ≤10Ω. In areas with high soil resistivity, the requirements for grounding resistance can be appropriately relaxed.
5.4. After the lightning rod is put into use, it should be checked every year before the thunderstorm season: whether the connection of each connection part is firm, and whether the connection between the down conductor and the grounding system is reliable.
Optimized Lightning Rod
1. Application scenarios
The optimized lightning rod is suitable for direct lightning protection of various buildings, structures, communication base stations, meteorological stations, radar stations, petroleum gas stations, etc.
2. Product Features
2.1Optimize the new stainless material of the lightning rod, which is corrosion-resistant and wind-resistant.
2.2 Optimized lightning rod maintenance-free, passive.
2.3 Optimized lightning rod has long service life and is easy to install.
3. Technical Parameters
Maximum discharge current(KA) | 250 |
Groundresistancerequirements(Ω) | ≤10 |
Wind strength(m/s) | 30 |
Material | SUS304 |
Product height(mm) | 1500,1200,2500,3000 |
Lightning ball diameter(mm) | 200.250 |
4. Precautions for installation
4.1. Optimize the lightning rod according to the area and height of the protected building, the location of the thunderstorm day and the correction coefficient of the geographical environment, the nature of the building, etc. Select the lightning rod, and determine the height of the lightning rod pole.
4.2. When optimizing the installation of the lightning rod, the connections between the various components must be reliable. After the installation is completed, the joints or the damaged parts of the metal surface coating should be treated with anti-rust treatment.
4.3. The optimized lightning rod should be connected to the lightning protection belt or the ground grid on the parapet wall through the down-conductor, and the grounding resistance value is required to be ≤10Ω. In areas with high soil resistivity, the requirements for grounding resistance can be appropriately relaxed.
4.4. After the optimized lightning rod is put into use, it should be checked every year before the thunderstorm season: whether the connection of each connection part is firm, and whether the connection between the down conductor and the grounding system is reliable.
