subject: How Does Mine Machinery Effective Prevent Thunder? [print this page] With the development of science and technology, even though humans can not completely control the violent thunder and lightning, but after a long period of exploration and practice, has accumulated a lot of knowledge and experience of the lightning protection, forming a series of effective methods and technologies of mine . Parcel of these technologies: ground, then flash, streaming, etc., are detailed below explain.
1, the ground is to let the lightning energy into the lightning protection system to vent into the earth, a good grounding in order to effectively reduce the deflectors on the voltage, to avoid counterattack. The past, some regulatory requirements for electronic equipment separate grounding purpose is to prevent stray current in the grid or transient current interference device working properly. The ground is the most basic part of the lightning protection system. The ground is not good, mine the effect of all lightning protection measures cannot play. Lightning protection and grounding lightning protection installation of facilities for acceptance of the basic safety requirements.
2, then flash is the energy of lightning within a certain range according to the people to design the channel to vent into the earth. A certain scope of protection of lightning discharges captured, integrated into pre-designed to discharge a reasonable way. The lightning rod is a pro-active then flash device, its function to guide the lightning current into the earth. The grounding wire and lightning with the lightning rod on the basis of development. Using the lightning rod is the most important, the most basic lightning protection measures.
3, the shunt is an appropriate parallel between the wire and ground wire to everything from outdoor arrester. Directly thunder or lightning generated on the road over-voltage wave into the interior along these wires or equipment, the arrester resistance suddenly dropped to the low, close to the short-circuit state, the lightning current into the ground. Diversion is the focus of the rapid development of modern lightning protection technology, the key measures for the protection of a variety of electrical and electronic equipment. After lightning current in the shunt, there will be a small part along the wire into the device, which is intolerant high-pressure microelectronic devices is very dangerous, so the wires enter the chassis of such equipment should be carried out multi-level triage .Using shunt the lightning protection measures, should pay special attention to the choice of arrester performance parameters, more or less because the installation of additional facilities will affect system performance.
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