Hangzhou large-scale protection drill teaches you to distinguish between air defense and disaster warning

Hangzhou Shishixiang Street carried out emergency evacuation drills for earthquake prevention and disaster reduction

"Woo--Woo--" Yesterday (12th) was the third national disaster prevention and mitigation day. At 10 a.m., with the rapid alarm suddenly sounding over Hangcheng, more than 200 residents of Mishixiang Street gathered On an open space in the Repulse Bay City Garden, under the guidance of the guide, everyone covered their noses with a towel and quickly hid in a nearby air defense basement.

At the same time, 65 primary and secondary schools including 7 streets in the remaining 7 urban areas of Hangzhou, Jiangnan Experimental School, and 20 key civil air defense towns are also conducting air defense and disaster prevention emergency evacuation protection drills. This is the tenth consecutive year that Hangzhou has held a large-scale protection drill, and it is also the largest in history. A total of 47,500 people participated in the exercise.

Where are the horns for air defense alarms? secret

Uncle Chen, the first resident, participated in an air defense and evacuation emergency drill in Hangzhou yesterday. He was most curious, "Where is the alarm equipment in Hangzhou? Why is it heard every time the whistle sounds in every corner of Hangzhou?"

The reporter threw this question to the staff of the command and communication office of the Hangzhou Municipal Civil Air Defense Office. The staff smiled, "This is confidential, it is not easy to disclose." However, the staff said that the coverage rate of the alarm equipment in the urban area of ​​Hangzhou is as high as 98%, which means that citizens can hear it in almost every corner of the urban area. s reason.

"Simply put, the entire alarm system consists of two major blocks, one is the alarm control equipment set up in the air defense command center, and the other is the receiving terminal set up at each alarm point. The two are like generating telegrams and receiving telegrams. In each exercise, the alarm control device sends a command, and the receiving terminals scattered in all corners of Hangzhou will automatically receive the information and send an alarm signal at the same time. "

How to distinguish between air defense and disaster warning

Miss He was working in the office yesterday morning and heard an alarm sound from outside the office. Every time, the alarm sounded again, and the whole process lasted for more than 40 minutes. Later, Miss He learned that there were two kinds of alarm sounds just now, one was the air defense warning, and the other was the disaster prevention warning. Miss He felt quite puzzled: "So many alarm sounds are similar, how can they be distinguished?"

The staff explained that you can distinguish by the frequency and interval of alarm sounds. "The pre-alarm in the air defense warning has the signal: beep 36 seconds, stop 24 seconds, repeat three times, time three minutes. The air strike warning signal is: sound 6 seconds, stop 6 seconds, repeat fifteen times, time three minutes. Cancel The alarm signal sounds continuously for three minutes. The disaster prevention alarm signal sounds for 60 seconds, stops for 30 seconds, and repeats twice for three minutes. The disaster prevention alarm signal is: continuous sounding for four minutes. " The staff said that the air defense warning is generally easier to identify, and the disaster prevention warning, when a disaster strikes, there will be a voice and warning signal to remind at the same time, I believe it will be clearer.

High-rise buildings above 10 floors are equipped with air defense basement

Mr. Zhang, a citizen, asked a more practical question: "Now each community has a basement, how to distinguish between a common basement and an air defense basement?"

"In fact, the difference between the two is easy. Each air defense basement entrance has a white sign on a blue background with the words" Air Defense Basement "produced by the Hangzhou Municipal Air Defense Department. In addition, there are some in the air defense basement. The most obvious protective equipment is the closed doors at the entrance and exit. "The staff told reporters that high-rise buildings above 10 floors are generally equipped with air defense basements.

Side news

Yesterday, the provincial and civil affairs departments launched the theme activities of disaster prevention and reduction publicity week.

According to statistics from the Ministry of Civil Affairs, 2010 was the second worst disaster year in China after 2008 in the past 20 years. Natural disasters such as the Yushu earthquake, Zhouqu debris flow, floods, and snow disasters occurred throughout the country. As far as Hangzhou is concerned, there have been "4 · 20" landslides, "6 · 18", "7 · 8" and "7.15" three storms and floods and "12.15" extreme snow disasters, etc., which affected 877,500 Person-times, direct economic losses exceeded 1.57 billion yuan. (Sun Jingjing Li Yangyang Liu Dong Li Zhengming Yang Qiao Jiang Mingjun)