What are the dangers to our bodies if we don t have the electricity off for a long time in the class

I don't think the harm should be much, and I don't think there is any harm in this. Here are some of the inconsequential, encyclopedia!!

To a certain extent, the current dilemma of multi-class classrooms is closely related to the design and technical equipment of the classroom environment; It is an inevitable trend to reconstruct the classroom environment and create a new classroom environment suitable for student learning and teacher teaching. With the proposal of concepts such as smart earth and smart city and the vigorous development of related technologies, it has become an inevitable choice to make full use of sensing technology, Internet of Things technology, artificial intelligence technology, multi-technology and cloud computing technology to equip classrooms and improve the learning environment and build smart classrooms.

Electronic classroom mainly refers to the classroom form produced by the application of electronic equipment and electronic audio-visual products and equipment to traditional classrooms with the development of electronic technology. Multi-class classroom mainly refers to the classroom form produced by the application of multi-computer technology to the field of education with the development of multi-computer technology. The digital classroom is a classroom form produced by the digital revolution penetrating into the field of education and the application of a variety of digital equipment and tools to the classroom.

When the collection, storage, and dissemination of information is transformed from analog signals to digital signals, the classroom where these digital devices and tools are used becomes a digital classroom. The smart classroom is a more advanced form of the digital classroom.

In short, the development of classrooms has gone through the process of "traditional classrooms - electronic classrooms - multi-** classrooms - multi-** network classrooms - smart classrooms", and multi-** classrooms, multi-** network classrooms and smart classrooms belong to different stages of development of digital classrooms.

Trend. Driven by national policies, the popularization of smart classrooms is ushering in a peak.

In the "13th Five-Year Plan for Education Informatization", the 2018 Work Points of the Ministry of Education, and the Outline of the National Medium and Long-term Education Reform and Development Plan (2010-2020), it is mentioned that the focus of education informatization at this stage should be to accelerate the construction of educational information infrastructure.

The electromagnetic radiation generated by the electrical equipment in the classroom is not too harmful to the body, because it is all weak, not to mention that the ventilation performance of the classroom is very strong, as long as you pay attention to more ventilation, the damage to the body is minimal.

There is no harm. Lamps and wiring, there is neither radiation nor smell.

What are the dangers to our bodies if we don't have the electricity off for a long time in the classroom? Is it harmful to you that the lights are turned on in your house, and there is no harm to you if the classroom is not closed. That's a strange question.

It's not harmful to anything, but in order to save energy, you should turn it off when you don't go to class.

What kind of electricity is not turned off? Don't we usually turn off the electricity every day at home, don't worry about it because we change places, it's completely redundant, so study hard at school, don't think about it, come on.

1.The power should be turned off at hand, and the class leader or a special person in charge should check it in detail at the end of each day.

2.The classroom power socket is only for teaching use, such as the teacher's microphone, projector and other teaching tools, and it is strictly forbidden for students to connect electricity privately (such as radio, hair dryer, **, etc.).

3.Strengthen the conservation of electricity, when there is no need for electricity or lighting, each class should save energy and turn off the power, such as between classes, outdoor classes or in full-time classrooms, and the students on duty should be responsible for turning off the fluorescent lights and fans in the classroom.

4.Electricity in specialized classrooms should be checked in detail before leaving, and all power switches should be turned off. The air conditioning in all offices should be turned on after 10 a.m. and when the room temperature exceeds 28 p.m., and all should be turned off after 4 p.m.

5.Classroom fans should be used sparingly, all windows in the classroom should be opened to allow air circulation, and should be suitable for light breezes, 50% 60% more electricity should be used to turn on strong winds than weak winds, and all electric fans should be turned off when only one or two students are present in the classroom.

6.Please do not turn on the lights in corridors, stairs, and public places unless necessary, and ask all students to help turn them off, and the students in charge of cleaning in each class should insist on it at all times.

7.Classes that are responsible for cleaning toilets should always keep an eye on whether the lights in the toilets are turned off.

8.Damaged lamps should be removed first and replaced immediately, and flashing lamps are more power-intensive.

You can understand the smart electricity consumption of the classroom: Kankan AI uses the limb recognition technology in the unique target recognition technology to determine the number of people in the classroom by recognizing the ** captured by the camera in the classroom at regular intervals, and the system will automatically turn off the power of lights, air conditioners, etc. if the number of people is 0 within the specified time, without manual inspection or manual remote control switch. At the same time, the system obtains the electricity consumption of the air conditioner through the air conditioning controller, and obtains the electricity consumption of lights, fans, sockets, etc. through the intelligent air switch, which is used to count the total electricity consumption of each class and display it.

In order to protect privacy and not increase pressure on teachers, the cameras in the classroom are not connected to the monitoring system, that is, they do not view, do not record, and only take pictures at regular intervals for algorithm analysis. The air conditioner controller is used to remotely control the air conditioner and obtain electricity consumption, the smart switch is used to remotely control the electric lights, and the intelligent air switch is used to obtain the electricity consumption of electric lights, fans, sockets, etc. The air conditioning controller, smart switch, and intelligent air opening are all connected through the wireless LoRa gateway, and the camera can also be wireless, which is fully wireless to reduce the amount of construction, which is suitable for transformation and upgrading.

What are the precautions for campus electricity safety? Star Awareness Project

It is difficult to normalize patrol guards。That is, students are escorted by school teachers and security guards in different places, and students are escorted during peak hours at school and school. Sometimes there are public security, traffic police, and other departments involved.

However, it will not be easy for this measure to last for a long time. Even school security guards are often too old and not professional enough. In addition, patrols around the campus are difficult to normalize.

Networking is difficult to achieve。On the one hand, some schools have imperfect monitoring facilities and poor coverage; On the other hand, there is no communication with the public security department.

The network sharing does not realize one-click alarm, and the emergency response capability is not strong.

Physical isolationMeasures are inadequate。It is manifested as a potential safety hazard in the management of vehicles at the school gate and around the school.

This includes traffic safety and vehicle collisions. In addition, the enforcement of closed management or access control systems is not very strict, which may allow criminals to take advantage of them.

Critical issues are difficult to solve. It should be said that conflicts and key figures inside and outside the campus can be a huge hidden danger to campus security. On the one hand, it touches on the situation, but it is not fully dealt with in place; On the other hand, it is not enough to have a comprehensive and detailed grasp of the students with problems on campus, and there is no targeted psychological counseling service and other measures to help and educate them.

Some schools often keep this a secret, reluctant to talk about problem students in the school, so they can't talk about the measures.

Safety hazards of using fire. Teachers littered cigarette butts. The campus is littered with leaves and waste paper. Firefighting equipment is insufficient. Students will not be able to use fire extinguishers properly.

Not knowing how to properly escape from the fire.

Electricity is not safe。Some classrooms have loose switches and sockets. Some lines are aging.

Some students lack the common sense to use electricity safely. The safety of student property is hidden. Some students carry large amounts of cash with them.

Sometimes people outside are found hanging out in the school.

Safety hazards in sports。The playground is uneven, dusty, sandy, prone to slipping or blindness. Swings, horizontal bars.

and other sports equipment that is rusty and unstable. There is a crack in the table tennis table, and it is easy to fall. There are no obstacles at the shooting range of the football field.

In physical education class, some girls wear trinkets. When the sports day is held, some students do not do pre-competition preparation activities, which can easily cause muscle tension. When the sports day is held, some students do not play in the designated place**, they are in the sports game, and it is easy to collide with the athletes.

The electric fans in the classroom can fall off, and the glass windows may shatter when it is windy or rainy, causing harm to students.

If you accidentally fall, you may knock into the corner of the table; Accidentally kicked on a stool by someone behind and fell.

The common problem of whether the glass doors and windows in schools are strong or not to prevent students from being injured. There are also students who have the problem of throwing hard objects from the upper floors, and the problem of students chasing and fighting between classes is also very serious, and it is easy to get injured.

In the classroom, if you run very fast, you will easily slip and fall, and then you will easily touch the special desks and chairs.

A common safety hazard in the classroom should be the electric fan on the head or the glass on the wall, which may fall off.

Both the home and the teacher's are 220V AC.

As for whether you can do experiments, it depends on what experiments you do, industrial laboratories are basically 380V, because most of them are large-scale equipment.

The lighting sockets in the home and classrooms are single AC 220V-50Hz.

The inside of the socket is the left zero, the right fire is the ground wire.

This alternating current is relatively simple.

220V alternating current, the electricity inside the battery is direct current.

At present, domestic homes and classrooms use 220V alternating current.

Just turn off the switch before opening the main switch. If the main gate is opened directly, it may trip, and of course it will also affect other lamps and wires.

It is recommended to check the cause of smoke and troubleshoot before sending power to ensure safety.

The power that does not affect the classroom circuit is not large and there is no danger.

It's dangerous, 36 volts or less is a safe voltage, and the electric fan uses 220 volts AC voltage, unless you wear rubber-soled shoes, otherwise you will be electrified.

Safety voltage refers to the voltage that does not directly cause death or disability to a person. The "safe extra low voltage" that allows continuous contact under normal environmental conditions is 36 V. The general voltage of our mains is 220V, and the electric fan directly inputs 220V voltage, so it is not a safe voltage.

It's okay, now power banks all come with self-protection functions. When the charge is full, it will automatically disconnect the charge.