Chang lightning Company | liaobu lightning | Cheonan Lightning Products

 Bowls law: Bowls method is based on the radius of a sphere hr Chang'an lightning rod companies need to prevent direct lightning strikes along parts of rolling, when the ball hit only air terminals (including being used as a lightning arrester metal objects) or just touch When the air terminal and ground (including contact with the earth and can withstand lightning metal objects), without touching the need to protect the site, which is part of the air terminals get protection. The formula is: Where: Rp = lightning protection radius on the ground (m) hx = protected height (m) h = lightning rod height (m) hr = grounder radius (m) IEC1024-1 matter: 1990 when time to meet the requirements under the table, and air terminal arrangement is appropriate. Air terminals are arranged in accordance with the level of protection in terms of air-termination system on the design, the following methods can be used alone, can also be combined with lightning, then flash device as long as the protected area can be provided by different parts of the mutual convergence and ensure that the buildings be fully Lightning All three methods can be used independent, semi-independent and non-independent: the grid method: - Protection of the line (see Section 2.1.2 IEC1024-1): - protection angle method: - Bowls law design of the system. All three of these methods can be used independently, semi-independent and non-independent design lightning protection system. 1, the protection angle method: lightning conductors, location lightning, lightning and a lightning-line tower, should be protected so that the various parts of the building are at various points by lightning conductor on the device to "" projection angle in all directions to the ground formed within the track surface. Protection angle method with geometric limitations. 2, bowls method: buildings with complex geometry, or when IEC1024-1 Table 1 exclude the use of lightning protection angle method Chang'an wholesale, to determine the area of ??the building and protect the various parts of the space should be used bowls method . "Bowls" radius should be consistent with the chosen level of lightning protection systems. Bowls method is the use of the building was a radius "R" ball rolling around the building until the plane hit the ground, or in contact with the plane hit the ground and can be used for any permanent structures or objects lightning conductor so far. In the building where the rolling contact there may be struck by lightning. In such a point, and lots of lightning at Changan installation, you need to provide the lightning conductor lightning protection. Space lightning protection system is "bowls" engagement and the role of the conductor did not pass through the volume of the building when a piece of space. Installation costs and mine protection level system with the selected bowls of size reduction increases. 3, grid method: lightning conductor or conductors roof should form a closed polygon, the surrounding area should be laid near the edge of the roof. This polygon then flash device should be connected to each other through the addition of lateral lightning conductors to improve in order to form a line with the requirements of Table 1 IEC1024-1 grid. Chang lightning Company | liaobu lightning | Lightning products offered by Tian Tian Dongguan mine Engineering Limited. City Cheonan mine Engineering Limited (www.0769ta.com) strong, credible, in Dongguan, Guangdong lightning lightning products industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Cheonan mine and you hand into the brilliant, for a better future!