What's people's air defence
People's air defence means the measures and actions taken by the state to mobilize and organize the population against enemy aerial attacks and to eliminate the consequences of air strikes, in accordance with national defence needs。
The status and meaning of people's air defence
People's air defence is an important component of national defence, an important aspect of national economic and social development and an important component of modern urban construction, and together with field and ground defence, constitutes the national air defence system。
What are the approaches and principles for building people's air defence
People's air defence is based on a long-term approach of preparedness, priority-building, peace-building and the principle of coordinated development with economic construction and integration with urban construction。
What is the basic knowledge of building people against engineering
1. People's air defence works, also known as human defence works, are underground protective structures constructed separately to secure the cover of persons and goods in time of war, the command of people's air defence, medical assistance, etc., and the basements used for air defence in time of war constructed in conjunction with ground buildings。
2. The construction of people's air defence works shall be integrated into the overall urban construction planning. Emphasis should be placed on the development of the use of urban underground spaces, taking into account the people's air defence requirements, and the gradual development of urban underground protective space systems consisting of urban underground traffic arteries, underground commercial recreational facilities, underground parking, underground crossing streets, common ditches, etc。
3. New civilian buildings in cities and urban areas must be constructed simultaneously with air defence basements in accordance with the law. The construction and fire services cannot proceed without the approval of the people's air defence authorities。
How is the management of personal protection against engineering maintenance regulated
The maintenance of human defence works is the responsibility of the construction unit, which has been developed for use, and the use unit, which implements the principles of who builds, who manages, who uses and who manages them。
How do we identify the air defences
Pre-alarm signals require 36 seconds, 24 seconds, three times a cycle of three minutes, characterized by a “long interval”。
Air strike warning signals: 6 seconds, 6 seconds, 15 times over a three-minute cycle, characterized by “short intervals”。
Disarm alarm signal: a three-minute continuum characterized by “no spacing”。
Why did wuhan conduct an air defence test on october 25
On 25 october 1938, it was the most memorable anniversary of the fall of wuhan. According to the wuhan register, from the first warning to the fall of wuhan on 25 october 1938, the city was subjected to 72 daily air strikes。
The wuhan city people's air defence regulations, which were in force since 1 august 2004, provide for the sounding of air defence alerts throughout the city on 25 october each year, both as a test of air defence alarm equipment and as a wake-up call to the public about national shame。
