Shulou(Shulou.com)11/24 Report--

Summer wind and rain raging, thunder electric motionless to lose his temper, hurt the innocent, is not very annoying?

So, how does lightning come about? How to reduce the harm of lightning to people and communication equipment?

In fact, there is a very romantic love story about the birth of lightning. We also have "18 martial arts" about lightning protection. Let's listen to the documents one by one for you.

In the tranquil land, there are aborigines such as Xiaojian, Xiaohua and Xiaocao.

Summer is coming, the weather is muggy, the water on the ground is boring, respectively means to go to the sky to encounter cold air MM. As a result, they became steam and followed the hot air on the ground, and finally successfully met with the goddess cold air MM. The tears of happiness condensed into small water droplets. With the passage of time, the lovely little water droplets gradually gained weight and finally became a cumulonimbus aunt.

Cumulonimbus aunt is in menopause, hormone disorder, its body has both a "positive charge" testosterone and a "negative charge" estrogen.

Driven by a youthful hormone called electrostatic induction, aborigines on the ground are attracted by the nearest cumulonimbus aunt and produce different hormones.

They adored each other, called each other, and finally they broke out, so the baby lightning was born!

As the lightning baby absorbs the essence of heaven and earth and is nurtured by all things, it is born with boundless power and extremely destructive.

Such a grumpy lightning baby, how should human beings deal with it?

Intelligent human beings knew that they could not resist lightning by their own strength, but they could defeat it with wisdom, so they invented the 18 martial arts of lightning protection.

The first move of lightning protection "Optimus Prime" makes full use of the character of cumulonimbus clouds that like to eat nest grass, and installs lightning rods over tall buildings to make cumulonimbus clouds the first choice for lightning rod discharge. The lower plate of the lightning rod has long been rooted in the earth, and the powerful lightning current is led to the earth by the lightning rod and dissolves in the invisible.

The second method of lightning protection: "Great shift of the universe" lightning rod can resist direct lightning strikes, but there is nothing you can do about lightning transmitted through power lines, pipes and signal lines. If lightning arrester is installed on the transmission path, it can effectively resist this kind of lightning hazard. Let's get to know this magical lightning arrester.

So how does the lightning arrester work?

When there is no lightning, the lightning arrester is equivalent to a disconnected switch, and the communication equipment works normally.

When lightning enters the wire, the lightning arrester detects that the ultra-high voltage of the wire will automatically become a closed switch, when the circuit is short-circuited and the lightning current is introduced into the earth, successfully moving the lightning to the earth.

The third step of lightning protection "ladder cloud vertical" lightning also has a feature, when it hits the building, the lightning transmission has a gradient, so that the vertical adjacent layer of metal on the potential difference is very large, extremely dangerous.

How can this harm be eliminated? Ladder vertical-equipotential connection can solve this problem, the so-called ladder vertical is to weld all kinds of metal objects together, so as to ensure equipotential, which can eliminate the great voltage difference between adjacent metal objects.

Whether it is Optimus Prime or the great shift of the universe, the huge lightning energy they undertake must be released in a place. The power of heaven should be borne by the force of the earth, and ten thousand swords return to the family-joint grounding is the power of the flood and famine of land against the power of heaven.

The return of Wanjian refers to connecting the working place (DC output positive pole), protective ground and lightning protection ground of the communication station into a common grounding system. In this way, when a strong lightning current is injected into the earth, the potential of the earth rises immediately, because all the ground wires are connected together, and the ground potential of the equipment rises with the earth, so there will be no potential difference between the middle ground wires, so the equipment will not be damaged.

The fifth move of lightning protection "Golden Bell cover" it is said that lightning can also produce electromagnetic pulses and damage electronic equipment. How can this be prevented? Don't worry, we also have a golden bell cover-shielding.

The so-called golden bell cover is to surround the protected object through the conductor and cut off all the electromagnetic pulse intrusion channels of lightning, so that ten thousand thunder can not be invaded! Isn't that cool!

The sixth move of lightning protection "Ling Bo micro-step" is good, but what if you are accidentally hit? 36 is the best way to go, we can hide. When a thunderstorm comes, turn off the equipment, unplug all power plugs, and connect the feeder of the antenna to the grounding device. The absolute security of the communication equipment can be ensured.

The weather forecast says it's going to thunder tomorrow. I'll take a ten-day trip to Europe to avoid the limelight.

What? Haven't you finished the 18 martial arts of lightning protection? There are twelve kinds of martial arts waiting for you to add! Please reply directly and participate in the discussion.

This article comes from the official account of Wechat: ZTE documents (ID:ztedoc)

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