მე მჯერა, რომ ყველამ იცის ელვა rods. When we were in junior high school, the textbook covered it in detail. In our daily life, we often see ელვა rods at the top of multi-storey buildings and have the effect of maintaining buildings, but many people have little knowledge of ელვა rods. Now let us know with you who invented ელვა rods, ელვა rods and the efficacy of ელვა rod installation standards. 1. Who invented the ელვა rod. The invention of the ელვა rod has a good effect on preventing buildings from being struck by ელვა. Nowadays, there are more and more multi-storey buildings in life, and the use of ელვა rods is also more common. As everyone knows, many friends do not know who invented the ელვა rod. Who invented the ელვა rod? American scientist Franklin invented the contemporary ელვა rod. Franklin felt that ელვა was a charge-discharge condition. To better prove this, on a stormy day in July 1752, at the risk of being struck by ელვა, he placed a paper kite tied with a long wire into a cumulonimbus cloud and placed it on the end of the wire. A bunch of silver keys. When the ელვა struck, Franklin's hand came close to the key, and a string of spark discharges erupted from the key. There is a real discomfort in the hand. Fortunately, the ელვა was relatively poor, and Franklin was not injured. The invention of the ელვა rod is a rational development and the development of all human civilizations. Its generation makes everyone no longer worry about ელვა strikes on buildings. It is very effective in maintaining the safety of buildings and people themselves. Second, the effect of ელვა rod. To put it bluntly, we can understand that the ელვა rod is a device that prevents ელვა strikes in buildings. Many multi-storey buildings have ელვა rods, but many friends do not know the basic principles of ელვა rods and how to avoid ელვა strikes in buildings. Traditional ელვა protection can be divided into anti-shock ელვა, anti-magnetic induction ელვა and comprehensive ელვა protection. The ელვა protection grounding equipment for shock and ელვა protection is generally composed of three parts, namely the ელვა strip, the wire and the grounding body; the ელვა protection strip is divided into ელვა rod, ელვა protection wire and ელვა protection net. The basic principle of ელვა protection with the ელვა rod as the ელვა strip is: the ელვა rod is connected to the ground according to the transmission line, and has an equal phase difference with the floor, making full use of the relative height to increase the magnetic field strength to the specified value. correctly guide the charge and discharge. The ელვა rod causes electrostatic induction under the action of a strong electrostatic field, leading to upward charging and discharging; the two move forward to generate a ელვა safety channel, and then pour into the ground to achieve the actual effect of ელვა protection. In essence, the ელვა rod is a kind of ელვა rod, which can cause the surrounding ელვა, charge and discharge in advance, and transmit the ელვა current to the road surface according to its own grounding device electrical conductor, so as to avoid the maintenance target from being struck by ელვა immediately. 3. Lightning rod installation standards. Lightning rods are used to prevent ელვა strikes in buildings, so the installation and use of ელვა rods should be very standardized. Only the installation and use of the ელვა rod can fully exert the ელვა protection effect, so the installation of the standard ელვა rod is very important. 1. The concrete base should be poured concrete at the installation site in advance, with a size of 400mm × 400mm × 600mm (length X width X height), and pre-embedded anchor screws or plastic expansion screws. 2. Install the ელვა rod. The ელვა rod base is fixed on the pre-set prefabricated concrete base. The ელვა rod tower base is reliably connected with the concrete base anchor screw (or plastic expansion screw). 3. The ელვა rod wire connector must be reliably connected with the power grounding wire, the wire connector is light green, and the cross-section BVR25mm2 or more copper core wire.

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პოსტის დრო: Mar-29-2022