Civil air defense alarm sound distinction, civil air defense alarm divided into what kinds?

First, the time is different.

1. Pre-alarm sound: The pre-alarm sounding requirement is 36 seconds.

2. Air raid siren sound: The air raid siren is required to sound for 6 seconds.

3. Discharge the alarm: The requirement to release the alarm is to sound continuously for 3 minutes.

Second, the form is different.

1. Advance alarm: sound for 36 seconds, stop for 24 seconds.

2. Air raid siren: sound for 6 seconds, stop for 6 seconds.

3. Cancel the alarm: Sound continuously for 3 minutes.

Third, the cycle is different.

1. Pre-alarm sound: repeat 3 times for a cycle.

2. Air raid siren: repeat 15 times for a cycle.

3. Cancel the alarm sound: continuous sounding.

State-mandatedAir defense alertSignals are divided into pre-warningsAir raid sirensand dismiss the alarm.

Advance Warning: Advance notification of an impending enemy air raid on the city, requiring preparation for an air raid. The specified sound signal is: 36 seconds of ringing, 24 seconds of stopping, repeating three times for a cycle, the time is 3 minutes.

Air Raid Alert: Indicates that enemy air raid weapons are approaching the city, and that the air raid is about to start or has begun, warning people to quickly take cover. The specified sound signal is: 6 seconds, stop for 6 seconds, repeat 15 times for a cycle, the time is 3 minutes.

Dismiss Alert: Indicates that the air raid has ended and the air raid alarm is lifted. The specified sound signal is: continuous long beep for 3 minutes.

Each alarm sounds for 3 minutes at 7-minute intervals.

The importance of air defense alerts:

Organizing air defense siren tests is a concrete measure for implementing the civil air defense laws and regulations, and regularly organizing air defense siren tests and drills so that the broad masses of the people can familiarize themselves with air defense siren signals and be able to take protective measures in a timely and correct manner, further enhance the concept of national defense, strengthen people's awareness of civil air defense, warn citizens to be prepared for danger in times of peace, and improve their response to wars and natural disasters.

self-help and mutual rescue capabilities. Protect the safety of the country and people's lives and property.

It refers to the warning signal of the enemy's air attack, which can be divided into advance warning, air attack alarm and disarming the alarm.

The requirements for the pre-selected alarm are 36 seconds, 24 seconds of stopping, repeating 3 times for a cycle, and the sounding time is 3 minutes; The requirements for the air raid siren to sound are 6 seconds, stop for 6 seconds, repeat 15 times for a cycle, and the sound time is 3 minutes. The requirement for the alarm to sound is to sound continuously for 3 minutes.

There are three types of air defense alarms: advance warning, air raid warning, and disarming alarm. The method of identifying the air defense warning signal issued by the electric siren is:

1. Advance alarm: sound for 36 seconds, stop for 24 seconds, and repeat 3 times for a cycle (3 minutes).

2. Air raid siren: sound for 6 seconds, stop for 6 seconds, and repeat 15 times for a cycle (3 minutes).

3. Alarm disarming: sound continuously for 3 minutes.

Air defense alarm is an important part of urban air defense engineering, peacetime for disaster relief and disaster relief and emergency reporting in the case of sudden accidents, used for civil air defense in wartime, is the basic means for the people at all levels to implement civil air defense command, organize personnel evacuation, is the city is threatened by air raids to remind people of air defense.

The purpose is to enable the people's air defense organs and professional contingents to take timely action in accordance with the plan, so that the people can evacuate and conceal themselves in a timely manner, reduce the loss of people's lives and property, maintain the war potential, and strive for victory in the struggle against air raids.

The main tasks include: announcing air defense warning signals, publicizing them widely, and organizing test drills; Air defense warning signals should be issued at appropriate times, advance warnings should be issued when the enemy is likely to carry out air raids, air defense warnings should be issued when obvious signs of enemy air raids are discovered, and disarming warnings should be issued when the danger of enemy air raids has been eliminated.

The differences between the three types of air defense siren sounds are as follows:Pre-Warning Signal:

In the event that the city may be attacked by air, citizens are advised to prepare for air raids in advance. The sound signal is: 36 seconds to stop for 24 seconds, repeat 3 times, the time is 3 minutes, mainly the early forecast when the city has signs of air raids, prompting people to implement protection or emergency evacuation.

Air Raid Warning Signals:

In the event that the air raid is close to the sky over the city and the air raid is about to occur or has begun, inform the public to quickly take protective measures such as evacuation and shelter. The sound signal is: 6 seconds, stop for 6 seconds, repeat 15 times for a cycle, the time is 3 minutes.

The purpose of sounding the civil air defense siren is to test the sound of the siren in non-emergency situations, so as to better test the integrity of the air defense siren facilities, to familiarize the general public with the air defense siren signal, and to enhance the concept of national defense and the awareness of civil air defense.

Dismiss the alarm signal:

When the danger of air raids has been lifted, citizens are informed that they can carry out work to eliminate the consequences of air raids and restore normal order in production and life. The sound signal is: a long sound is played continuously for 3 minutes.

In the event of an emergency or emergency, when the public hears the air defense warning signal, they should remain calm, carefully distinguish what kind of warning signal is being issued, and then take corresponding measures.

Civil air defense alarms are divided into advance warnings and air raid alarms.

and disarming. The pre-selected alarm is required to sound for 36 seconds, stop for 24 seconds, repeat 3 times for a cycle, and the sound time is 3 minutes, and the air raid siren is required to sound for 6 seconds, stop for 6 seconds, repeat 15 times for a cycle, and the sound time is 3 minutes. The requirement for the alarm to sound is to sound continuously for 3 minutes.

Air defense alertIt is an important part of urban air defense engineering, which is used for disaster prevention and relief and disaster forecasting and emergency reporting in the event of sudden accidents in peacetime, and is used for civil air defense in wartime.

It is the basic means for the people at all levels to carry out civil air defense command and organize the evacuation of personnel, and it is a warning that sounded to remind people of air defense when a city is threatened by air raids.

Evacuation measures. 1. Early evacuation refers to the fact that the country has detected that the war is about to break out until the country declares a state of war.

In the previous time, the inhabitants of the city were organized in accordance with the mobilization order issued by the state or theater of operations.

Evacuation of materials, factories, facilities, etc., was carried out in batches as planned.

2. Evacuation in the event of war refers to the evacuation of urban residents organized by the state in accordance with a plan during the period between the declaration of a state of war and the outbreak of war.

3. Emergency evacuation usually refers to the retreat and concealment actions carried out within 24 hours before the first air raid or in the interval between air raids. When organizing an emergency evacuation, it is necessary to make comprehensive arrangements in accordance with the city's topographical conditions, population size and density, and the layout of fortifications, and in accordance with the principle of taking into account the overall planning and ensuring key points, and allocate and use civil air defense fortifications in a focused manner.

Organize all kinds of guarantees.

Air defense alarm is an important part of urban air defense engineering, which is used for disaster prevention and relief and disaster forecasting and emergency reporting in the event of sudden accidents in peacetime, and is used for civil air defense in wartime, and is the basic means for the people at all levels to implement civil air defense command and organize personnel evacuation. It is a siren that sounded to alert people to air defense when a city was threatened by air raids. Generally, air defense warning equipment is set up on the roofs of buildings in cities and is managed by the armed forces departments or the security departments of streets, enterprises and institutions.

Early warning: I air strikes or other mass destruction** such as nuclear reminds people to enter air defense sites such as bomb shelters and basements.

Pre-alarm: sound for 36 seconds, stop for 24 seconds, repeat 3 times, time 3 minutes;

Air raid siren: sound for 6 seconds, stop for 6 seconds, repeat 15 times, time for 3 minutes;

Disarm the alarm: sound for 3 minutes continuously;

Disaster Alert: 3

Stop for 3 seconds, repeat the cycle 30 times, and the time is 3 minutes.

Generally speaking, the air defense alarm is issued from the horn in the air defense warning facilities, and the specific settings are planned according to the different conditions of each city, and most of them are installed on the top of the first organ building or on the high-rise building near the living area of the people, and some are even installed on the roof of the residential building. <

Generally speaking, the air defense alarm is issued from the horn in the air defense warning facilities, and the specific settings are planned according to the different conditions of each city, and most of them are installed on the top of the first organ building or on the high-rise building near the living area of the people, and some are even installed on the roof of the residential building.

Generally speaking, the air defense alarm is issued from the horn in the air defense warning facilities, and the specific settings are planned according to the different conditions of each city, and most of them are installed on the top of the first organ building or on the high-rise building near the living area of the people, and some are even installed on the roof of the residential building.

Summary. Hello! Dear, glad to answer for you!

The sound of the air defense siren is emitted from various air defense warning facilities, and the specific settings are planned according to the different conditions of each city, and are generally installed on the roof of the first organ building or on the high-rise building near the living area of the people, and some are even installed on the roof of the residential building.

Hello! Dear, glad to answer for you! The sound of air defense sirens is emitted from various air defense warning facilities, and the specific settings are planned according to the different conditions of each city, and are generally installed on the roofs of government offices or high-rise buildings near the living areas of ordinary people, and some are even installed on the roofs of residential buildings.

There are three types of alarms: electric alarm, electro-acoustic alarm, and hand-cranked alarm. The electric siren is used by the motor as the main device of the siren, which converts the electrical energy into sound; The electroacoustic siren is composed of a main macro amplifier and a loudspeaker; The hand-cranked siren is a supplementary early warning equipment for the electric siren and the electro-acoustic siren in Buyanju.