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英国essay论文精选范文：“Electronic equipment how to mine”，这篇论文讨论了电子设备该如何防雷。雷电是一种自然现象，其具有很大的危害性，每年因遭雷电灾害而损坏的电子设备不计其数，给人们带来了很大的经济损失，所以做好电子设备的防雷措施很有必要。要想做好电子设备的防雷措施，需要注意要将有可能引发雷击事件的各个因素都考虑到，从最初的电子设备的摆放位置，到雷电来临时可能会发生危险的元件，都要提前做好准备，尽量做到万无一失，这样才是保证生命财产安全的关键。

Lightning is a common natural phenomenon, is produced in the cumulonimbus in a common discharge phenomenon, lightning is divided into four kinds: there are lightning, electromagnetic pulse, spherical lightning and cloud flash, etc., each have a lightning phenomenon Hazardous, will cause a certain degree of building and electronic equipment hazards, so do a good job on the prevention of lightning, is to ensure safe production and living the key. The continuous development of science and technology, making more and more electronic devices into people's lives, for people to provide a great convenience, but also buried a lot of hidden dangers, summer lightning phenomenon, and lightning phenomenon Electronic equipment caused some impact, there may be accidentally electrocution accident, so do the lightning protection of electronic equipment, to ensure the safety of people's lives has important significance.

With the popularity of new technology, the use of electronic devices in the home more and more electronic equipment to provide us with convenience, but also for us to plant a hidden danger in recent years, we often hear on television households The family is bathed in lightning strikes like the news, these news are occurring in people's daily lives, it is understood that each year due to lightning caused by the loss of up to 100 million yuan of electronic equipment, the number of casualties reached tens of thousands of people , This figure makes shocking. Electronic equipment, while able to bring convenience to our lives, but it may also become a hidden danger of people's lives, so do the lightning protection of electronic equipment, not only for the sake of family property, is responsible for their own lives and safety .

Lightning phenomenon is inevitable, but we need to take the appropriate way to protect against lightning events in daily life, usually in the following ways to prevent lightning:

Electronic equipment grounding refers to the use of metal objects to accept thunder and lightning, through the wire and grounding devices, and ultimately make lightning current through the artificial set of drain flow to the earth, to protect people and buildings and equipment safety. As the earth is an insulator, it can be caused by a huge lightning current into the earth, so as to avoid damage due to excessive current caused by equipment, but also to ensure the safety of people, this approach is currently the most widely used as a defense Mine measures. According to the characteristics of electronic equipment, there are about three ways to use grounding: shielded, system-based, protected. Among them, electromagnetic pulse is the main impact of electronic equipment, mixed with a large number of electromagnetic pulse interference energy, will affect the normal communication of electronic equipment, the use of electromagnetic interference, More serious will make the electronic equipment with a certain potential, resulting in some interference with other devices, so for this situation we have to do a good job shielding electromagnetic pulse, for the possible occurrence of this situation should be shielded electronic equipment Way protection. Protection refers to the use of the equipment itself has the metal characteristics of lightning current generated when the current into the earth, to avoid the current harm to the human body, which is the most common kind of protection, but also the highest security of a protective measure.

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Electronic equipment within the line of the impact of lightning is more sensitive to when the lightning occurs, if the use of electronic equipment to the Internet, the lightning is likely to enter through the power cord to the internal electronic equipment, and then burn the internal parts of electronic equipment, When the lightning does not directly into the power cord, because the electronic equipment is more sensitive to the circuit, there may be damage or damage to the phenomenon, thus affecting the normal use of electronic equipment, and may even be dangerous to the user, so be sure to avoid Such a situation, for this situation, the simplest way is to cut off the signal system, cut off the electronic equipment and all the external signal contact, so that from the source to eliminate the interference of lightning to ensure the safety of electronic equipment.

When a lightning phenomenon occurs, if the electronic device is connected to a power source, a strong current generated by the lightning may be introduced to the inside of the electronic device through the power cord, and the internal components of the electronic device may be burned out, making the electronic equipment inoperable, Property damage. Therefore, to avoid this situation must occur in the lightning weather, cut off the power of electronic equipment, cut off contact with the outside world to ensure the safety of electronic equipment.

Now the building contains a large number of internal reinforcement, when the building was struck by lightning, the strong current will be incorporated through the steel bar in the building into the earth, in the lightning into the process, the building will have a large number of external walls Of the current through the formation of electric and magnetic fields, if the electronic equipment from the wall too close, it will enter into the current to form a magnetic field, the internal circuit of electronic equipment by electromagnetic interference, are vulnerable to damage, the impact of electronic equipment Life and normal operation.

Lightning phenomenon has a lot of uncertain factors, so in order to risk the occurrence of lightning in the coming as much as possible to unplug all connected with the electronic equipment lines, leaving no trace of hidden dangers, to ensure that the lightning phenomenon will not affect electronic equipment.

Lightning is a natural phenomenon, but it has great harm, each year due to lightning damage to electronic equipment countless, to bring a lot of economic losses, while suffering from lightning electronic equipment is very May carry some of the charge, if people inadvertently come into contact with these live electrical equipment is likely to cause electric shock phenomenon, the threat to people's lives, so do the lightning protection of electronic equipment is necessary to do Good electronic equipment, lightning protection measures, need to pay attention to the possible causes of lightning events are taken into account the various factors, from the initial electronic equipment placed to the thunderstorms may occur when the dangerous components, should be done in advance Preparation, as far as possible foolproof, this is the key to ensuring the safety of life and property.

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