Why are the pipelines of the three ventilation modes of civil air defense signal lights exposed? 5

There are some, this one is the pipeline is put later, so it will be outside, that is, it belongs to the category of open pipes, and there will be this kind of individual words.

It was clean ventilation: there was no poison outside, and the air raid sirens were not sounded before the fortifications were ventilated in wartime.

It is an isolated ventilation method: after receiving a nuclear, biological and chemical attack, the valve connected to the outside world is closed to carry out the internal circulation of the fortification.

There are three ventilation methods in Nanfang, and why Mingpu did not bury the line pipe because it was not involved in this aspect when it was built, so it must be laid openly.

Because this is the rule, because this store sells this thing, and that's what he is.

Three ventilation methods, signal light box isolation, cleaning, poison filtration, national standard 07FD02 atlas production. The three ventilation signal light boxes are also called civil air defense three-color signal light boxes, civil air defense indicator light boxes, and ventilation signal light boxes.

Because that's how he sets it up, and it's going to work.

Civil air defense three ventilation methods, the pipeline of the signal light why forehead compound eyes Ming Buddha's law, he may be more in line with this type of retrospective, compound wind.

His words are different, because each requirement is different, so I hope you look it up further.

Dear, I am happy to answer for you: how to piping civil air defense ventilation signal lights in which specification there is an answer: civil air defense ventilation signal lights trapped in the "civil air defense basement design code" in the "civil air defense air defense basement design code - electrical professional" stipulates that through the exterior wall, the empty wall, the protective airtight partition wall, the airtight partition wall of various cables (including power, lighting, communications, networks, etc.) pipelines and preparatory pipes, should be protected or airtight, should be selected the thickness of the pipe wall is not less than the hot-dip galvanized steel pipe.

Another article says that Wang Paiming: the electrical embedded pipelines that pass through the outer wall, the empty wall, the protective airtight partition wall, and the airtight partition wall should be selected with a hot-dip galvanized steel pipe with a thickness of not less than the pipe wall. Pipelines in other parts can be selected according to the specifications or regulations of the relevant ground buildings.

Summary. The civil air defense ventilation mode signal light (control box) AS AC is mainly used for the display and alarm of the air quality status inside the engineering bunker, and realizes the response to the electronic signal of the alarm from the control cabinet. It has two types of sound and light alarm, and has good display performance and visual effects.

1. Civil air defense ventilation signal light (control box) AS AC installation method: installed on the outside of the entrance and exit protection closed door, and the bottom margin is concealed. Refer to the national standard atlas 07FD02 for construction.

The electric bell is located in the ventilation mode signal control box. The civil air defense call button has two wirings, one is a common wire, and the other is connected with the civil air defense ventilation signal control box (AC control box).

Hello! Normally, it is done by firefighting, and some construction sites may also be done by electricians.

The civil air defense ventilation mode signal light (control box) AS AC is mainly used for the display and alarm of the air quality status inside the engineering bunker, and realizes the response to the electronic signal of the alarm from the control cabinet. It has two types of sound and light base touch alarm, and has good display performance and visual effect. 1. Civil air defense ventilation signal light (control box) AS AC installation method:

It is installed on the outside of the entrance and exit protection airtight door, and the bottom edge is concealed. Refer to the national standard atlas 07FD02 for construction. The electric bell is located in the ventilation mode signal control box.

The civil air defense call button has two wirings, one is a public line, and the other is connected with the civil air defense ventilation signal control box (AC control box).

Summary. Civil air defense ventilation pipe installation specification 1, according to the size of the drawings and the site situation to determine the size of the air duct installation positioning, according to the characteristics of the project, the bracket is generally set up in the form of support and hanging, and the material must be scientifically selected, so that the support and hanger are installed firmly, beautiful and reasonable. The suspended air duct and components shall be provided with fixed points to prevent swinging, and fixed brackets shall be set at the outlet of the air duct of the unit and at the end of the air duct.

The support and hanger of the insulation air duct should be set up outside the insulation layer, and the insulation layer should not be damaged to prevent the cold bridge from occurring.

2. The inside of the air duct must be wiped clean before construction, and the inside of the air duct must be kept clean during construction to prevent construction garbage from falling into the air duct. The air duct through the floor slab is generally made by civil engineering to turn upward, and it is advisable to set up an air duct support at the opening and construct it together with the reserved hole sealing plate. The flooding of the steel plate through the roof of the air duct must be closely coordinated with the civil engineering.

3. Air duct connection and installation: 3mm thick 8501 sealing strip is padded between the flanges of the air supply pipe; A 3mm thick dust-free asbestos board is padded between the flanges of the exhaust (smoke) pipe. The bolt spacing of the connecting flange is less than or equal to 150mm, and the bolts are tightened evenly and on the same side. and when the duct is installed.

What does the civil air defense ventilation line mean.

The civil air defense pipeline is a protective channel in order to prevent the enemy from using chemical ** to attack in times of war, (such as anti-nuclear bomb attack, anti-chemical ** attack, etc.), which contains prepared food, water, medical drugs, etc. The oxygen content of the gas in the civil air defense is relatively small, and it cannot be circulated indoors, so it can only be discharged to the outside, and then let the fresh air outside be discharged into the civil air defense.

Civil air defense pipelines. It's not a pipe.

Hello. Hold on.

Civil air defense ventilation pipe installation specification 1, according to the size of the drawing key and the site situation to determine the size of the air duct installation and positioning, Naiyan for the characteristics of the project, the bracket is generally set up in the form of support and hanging, and the material must be scientifically selected, so that the support and hanger are installed firmly, beautiful and reasonable. The suspended air duct and components shall be provided with fixed points to prevent swinging, and fixed brackets shall be set at the outlet of the air duct of the unit and at the end of the air duct. The support and hanger of the insulation air duct should be set up outside the insulation layer, and the insulation layer should not be damaged to prevent the cold bridge from occurring.

2. The inside of the air duct must be wiped clean before construction, and the inside of the air duct must be kept clean during construction to prevent construction garbage from falling into the air duct. The air duct through the floor slab is generally made by civil engineering to turn upward, and it is advisable to set up an air duct support at the opening, and Changzhiyin is combined with the reserved hole sealing plate for construction. The flooding of the steel plate through the roof of the air duct must be closely coordinated with the civil engineering.

3. Air duct connection and installation: 3mm thick 8501 sealing strip is padded between the flanges of the air supply pipe; A 3mm thick dust-free asbestos board is padded between the flanges of the exhaust (smoke) pipe. The bolt spacing of the connecting flange is less than or equal to 150mm, and the bolts are tightened evenly and on the same side.

and when the duct is installed.

In fact, it is the exhaust air in the civil air defense channel, which is the pipe.

You're talking about a line, not a tube?

That's right, civil air defense pipelines.

Hello, I checked out a lot today. Pipelines are all kinds of pipelines in civil air defense