Advantages of plastic containers in everyday life and at work. The main causes of fires in production and at home in everyday life or in production, what

03.03.2020 Accessories

Economy

For owners of large warehouses who deal retail sales goods you must have good container, which is suitable for storage and transportation. Depending on the size and type of product, products are selected different sizes. The material from which they are made is also different. Most often it is plastic, it is cheap and can withstand heavy weight and convenient to use.

Initially, many goods are sold in cardboard packages, but after opening the batch, they are not suitable for transportation, as they quickly lose their shape and do not tolerate moisture. In trade, it is often necessary to transport small loads, so the size of the box should fit into almost any car, and the shape should facilitate convenient stacking of containers on top of each other.

In addition to plastic boxes, you can make many other containers, modern technologies allow the production of food forms in which food can be transported or stored. This applies to both industrial scale, and to household ones. The sizes also vary greatly; you can buy large water containers, the volume of which reaches several cubic meters. Such tanks are often used in summer cottages, plastic containers quickly heat water in the sun, and then it can be used for irrigation or summer shower. Warm water great for drip irrigation, which promotes the rapid growth of vegetables and fruits.

Low cost and a light weight made plastic containers very popular in everyday life; it is convenient to store food in them, since the smell does not spread throughout the entire refrigerator. Special shapes for eggs and other products allow you to store them conveniently and compactly. Plastic does not change its shape over time and does not react with other substances, which makes it comfortable material in different situations.

Today you can find many products of this type on sale; special retail chains have been created that sell containers in wide range. It is also convenient to make purchases via the Internet; many stores have a user-friendly interface where you can select suitable containers for everyday use or for production with photographs and descriptions. The cost of such goods is small, and if necessary, you can order a small batch of products. Delivery is carried out by mail or courier service, you don’t need to hire transport for transportation, you just need to pick up your order at the nearest branch.

03.07.2014

Also on topic:

Logistics

An integral part of almost any business is cargo transportation, which allows the company to carry out its activities throughout the country. The sale of manufactured goods is impossible without its delivery to the point of sale.

Legislation

More and more devices and appliances “allowing you to save money” are appearing. electrical energy at home by compensation. Sales managers talk a lot and interestingly about these devices, their efficiency, low cost, and the ability to save a lot on your electricity bill. Is this really true? Let's try to figure it out.

Reactive power in production

Having read about industrial giants how much they save when installing compensating devices, many begin to think that by installing a similar compensator at home they will also save large sums. But not everyone knows that energy companies keep records of the reactive power of large consumers and they will have to pay quite a lot of money for the consumption or generation of reactive power. Therefore, by installing a compensating device and bringing their cosφ closer to unity, they will not pay for the reactive component and thus save money. Also, when the reactive component decreases, the resulting current decreases, which in turn reduces the cost of electrical equipment.

Also, compensators installed at enterprises have their own control system, which controls the operation of the compensation installation and the presence of a reactive component.

Reactive power in the house

Contrary to the stories of sales managers, many specialists do not believe in such compensation devices in living conditions, apartment, cottage, garage. And their conclusions are not unfounded. This is primarily due to the fact that energy companies do not keep records of reactive power consumed by household consumers. That is, you do not have to pay for reactive power.

Also, in everyday life, very powerful devices that consume high currents are very rarely used, so that with the help of a compensator, the current can be significantly reduced. A rather big disadvantage is also the rather large frequency of load changes (turning on and off), and cosφ is not indicated in the passports of household appliances, which makes it very difficult to calculate the reactive component.

let's consider small example: let an electric motor with the following parameters be installed in the refrigerator - U n = 220 V, I n = 2.5 A, cosφ = 0.9. Let's calculate its total power S = UI = 220 * 2.5 = 550 VA, now the active power P = UI cosφ = 220 * 2.5 * 0.9 = 495 W. Now we can determine the reactive power, which is approximately two times less than the active power for this engine.

Theoretically, we can design and turn 240 VAr to zero. Yes, we can, but what happens if the refrigerator turns off? That's right, these 240 VAR will already be generated by the compensator itself and sent to the network. To avoid this situation, it is necessary to disconnect the compensator from the network. Performing such actions manually each time is futile, and creating automatic system turning this device on and off will significantly increase its cost, and there will be no savings from it.

Comparison of reactive power compensation in domestic and industrial settings

At enterprises, when choosing compensating devices, careful calculations of the reactive component are made, studies of the harmonic components of the network are carried out, and an economic calculation of the feasibility of compensation is also carried out. Entire research institutes can work on such projects.

If you trust the managers and buy a device that supposedly “due to reactive power compensation” will reduce your electricity consumption, you will simply throw money down the drain. By plugging such a device into your network at home without preliminary calculations and knowledge of the operating principle of your compensator, you run the risk of not compensating for reactive power, but of generating it, which is not good, since instead of reducing the total current of your circuit, you will increase it.

You can see about reactive power compensation here:

To improve fire prevention measures at an enterprise or at home, you need to know exactly what the main causes of fires are. Thus, it will be possible to create the best system, allowing for early stages identify a fire and take all methods of protection: purchase all the necessary fire-fighting equipment, carry out disaster prevention with the enterprise personnel and city residents. But before you understand the main causes of fire, you need to learn about the classes of fires, and there are several of them.

Fire classification

By external signs Combustion fires can be divided into several types:

  • External.
  • Internal.
  • Internal and external at the same time.
  • Open.
  • Hidden.

Before considering the main causes of fires in enterprises and at home, you need to study each of the classes in more detail.

External fires include those fires that can be assessed visually. Most often this class occurs when buildings burn, storage facilities, petroleum products in a tank, in open technological installations, forests and so on. External fires are always open only.

Internal fires include fires that occur inside a building, and they can be either open or closed.

Open fires can be assessed by visual inspection, for example, during the burning of property in buildings, equipment, materials and others.

Hidden fires most often hide in voids building structures, ventilation, peat deposits. At the same time, signs of burning can be detected, they often come out through cracks, but it is very difficult to assess how strong the fire is. In addition, this type of fire is unpredictable and can suddenly change its direction.

Causes of fires

Fires at home or at work can occur due to various kinds reasons - these can be both social factors and man-made or natural. The main causes of fires are given below:

  • Man himself handles fire frivolously in everyday life and in nature.
  • Precautionary measures were not observed when working with instruments and equipment.
  • Spontaneous combustion of objects if left in a suitable environment, for example, flammable rags left in the sun.
  • Explosions of hazardous components in everyday life or at work.
  • The occurrence of a fire due to natural causes - lightning, thunderstorm.
  • Deliberate arson.
  • Worn out and broken equipment.
  • Safety measures are not followed, which leads to a fire.
  • Incorrect installation heating devices, electric and gas.

Factors influencing the occurrence of fire

Factors that influence the main causes of fires at work and at home:

  • Open fire - bonfire, burner and others.
  • The supply of components that contribute to combustion - oxygen, heat and others.
  • The human factor is negligence, irresponsible attitude towards fire safety.

For what reasons does fire occur in domestic conditions?

The main causes of fires in everyday life are most often the oversight of the person himself, but there are others:

  • Negligent handling of fire - smoking in bed or improper use of fire when cooking.
  • Faulty electrical wiring.
  • The use of electrical appliances that are not adapted to the domestic electrical network.
  • Fire due to improper use of electric welding equipment at home.
  • Children's games with matches.
  • Companies carrying out various types of work that involve fire.

We have figured out what the main causes of fires are, and now we need to decide what to do in order to prevent serious consequences, which very often end in death. How to avoid all this?

What to do in case of fire at home

We have looked at the main causes of fires and fires in everyday life, and now let’s talk about what measures to take in the event of a fire. If suddenly in your home you felt bad smell smoke or sparks, then first of all you need to inform the firefighters, and then, if possible, independently take measures that will help save people’s lives and prevent the fire from spreading over a large area:

  • Bring out the children and the elderly.
  • To protect against burning, use a wet piece of cloth.
  • If it is possible to partially extinguish the fire, then take all possible measures to do this.
  • The fire can be covered with a wet blanket or other material.
  • If there is a guarantee that the current will not strike, you should try to turn it off.
  • When extinguishing a fire, direct the main jet towards the main fire and, if possible, try to do everything possible to prevent it from spreading further.
  • Substances considered flammable cannot be extinguished with water.
  • Electrical wiring is extinguished with powder fire extinguishers.
  • If furniture is on fire, it is better to cover it with a wet blanket.
  • Do not open any windows or doors, otherwise the fire will flare up even more.

If the fire is small and it is possible to extinguish it yourself, then take all possible measures, but if this is impossible, then you urgently need to leave the premises and entrust the extinguishing to firefighters. But situations happen not only in everyday life, but also in production. What are the main causes of fires in production?

For what reasons do fires occur at work?

At risk are industrial enterprises, and fires occur on them for the following reasons:

  • Failure to comply with safety standards.
  • Improper handling of open flames.
  • Damage electrical equipment or wiring.
  • Consequences of an explosion if there is a leak of explosive substances.
  • Carrying out welding work.
  • Arson.
  • Cluttered workplaces.

The main causes of industrial fires are known, but in most cases fires occur due to improper use electrical installations. It is for this reason that fire prevention methods are very important, which are monitored by a special department present in every large or small enterprise.

Fire prevention measures at the enterprise

To prepare a person to work in an enterprise where there are various types of equipment and explosives, you need to tell him about all the fire prevention measures. He must also know the main causes of fires in production and their prevention, after which he is allowed to work. All this is also recorded in a special journal. Without such a signature, he should not be allowed to work with electrical and other types of equipment.

In addition to the fact that every employee is required to know about fire prevention, the enterprise must be equipped with fire extinguishers and other types of fire equipment. Fires can most often be extinguished thanks to the quick response of personnel and the presence of fire extinguishers. What to do in case of endogenous fires?

Causes and prevention of internal fires

In already mined-out mine spaces there is a danger that peat or coal will catch fire. In addition, endogenous fires often occur in the holds of tankers that transport flammable materials, and in warehouses where they are stored. And the main causes of fires and explosions do not always depend on the human factor; spontaneous combustion often occurs and this must be taken into account.

In many mines, as a preventative measure, they provide for the laying of an irrigation pipeline through which water is supplied to any point in order to immediately extinguish the fire. And also arrange special rooms or arches, where there is not only sand, brick, clay, but also other materials that make it possible to very quickly cut off the fire from other areas, blocking it and preventing the flow of air for an even larger fire. Also, only non-combustible materials, such as concrete and metal, are allowed to be used in mines, and wood is treated with a special solution.

How to prevent fire at home

It is not for nothing that they say that it is better to prevent trouble, this also applies to fire. Therefore, there is no need to use faulty electrical appliances or simultaneously plug in several appliances into one outlet or with high power. It is also not recommended to use untested homemade devices.

When leaving home, be sure to check your gas and electrical devices and turn off all equipment, it will be safer, because even if it is working properly, where is the guarantee that there will be no power surges and it will not short out.

Be sure to supervise children and do not allow them to play with matches, light stoves, gas stoves and turn on electrical appliances. Also watch out for lighters, as they have the ability to explode when exposed to sunlight.

Do not light stoves with flammable liquids, do not dry firewood and clothes on the stove, and do not throw away coals near residential buildings and household premises.

But you not only need to protect your home from fire, you should also monitor your workplace at the enterprise so as not to lead to a fire and serious consequences.

How to protect yourself from fire in an enterprise

We have already figured out what are the main causes of fires and explosions at drilling sites and enterprises, but we also need to know the safety measures that can be used to avoid fires. Measures to protect against fires and explosions include:

  • Equipping every even the smallest enterprise with all necessary means fire extinguishing equipment such as fire extinguishers, fire alarm and others. The enterprise must create a special department that will conduct safety training and monitor all fire extinguishing means, changing them as they fail.
  • Carrying out measures that will quickly stop the spread of fire and not lead to a man-made disaster.
  • Strict control of the enterprise management over the services responsible for fire safety.

Conclusion

We examined all the main causes of fires and explosions in enterprises and in everyday life, and understood the classification of fires and safety measures. And, as is clear from the above, it is better to do everything necessary measures and to prevent a fire than to extinguish it later, especially if it is hidden, and it is very difficult to determine how much it has spread.

Only properly organized safety precautions at an enterprise will allow work without harm to the health of each of the workers, and at home, control by the owner of the house will allow him to protect himself and his family from fire. About 50% of fires occur due to human negligence, and only an accurate assessment of how dangerous a fire can be to a person can be avoided. Be responsible and vigilant citizens and prevent fires, then you will not be afraid of fire either at home or at your enterprise. Remember: it is better to prevent it than to extinguish it later, especially if it happened indoors and almost nothing is known about it.

The range of power tools for working with wood today can confuse even experienced craftsman. It was good during the times of the USSR - the Druzhba chainsaw had practically no competitors and was successfully sold out when it hit the retail chain. Today, there are models on sale for every taste, and choosing the chainsaw you need can take a lot of time. Anyway, opening the metal doors hardware store, you can be sure that you will not leave here without a purchase and will purchase exactly the chainsaw that will help you get the job done quickly and easily.

First of all, decide on the area of ​​application of your future chainsaw. If you only need it for cutting down old trees for personal plot, then it’s not worth spending money - you’ll need the most simple model. But for professional work cutting logs, you will need a bulky and powerful chainsaw. In this case, along with the power tool, it is worth purchasing iron doors immediately in order to securely close the storage area of ​​your saw during your absence. Do not skimp on purchasing a cheap saw for long-term work - a burnt out motor will bring disappointment and the need to make a purchase again, seeking additional funds for it.

The chainsaw models offered today can operate either on AC power or with a built-in battery. Choose - if you have to work at a considerable distance from residential buildings, you will need a mobile chainsaw, but for work in the country, you can get by with a model that connects to the network and is output to the street through bars on the windows. If you decide to give preference to a chainsaw manufactured abroad, pay attention to the possibility of adapting it to the 220V voltage adopted in our country, otherwise the purchase will become useless.

It is important that the chainsaw has two-stage protection against electric current - i.e. insulation of all current-conducting components and parts, as well as additional insulation of the housing. This is a guarantee of the safety of your work with the saw, which is very important when working with such a powerful tool. In addition, pay attention to the presence of additional functions on the chainsaw - sometimes they work to the detriment of the main task that this mechanism is designed to perform. Therefore, refrain from purchasing a chainsaw with many bells and whistles.

    Adj., number of synonyms: 2 everyday (34) used in everyday life every day (2) ASIS Dictionary of Synonyms ... Synonym dictionary

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    HYGIENE AT HOUSEHOLD- HYGIENE AT HOUSEHOLD. The basis of household hygiene is cleanliness and order, created in the home and systematically maintained by all family members. To ensure that the air is always clean, the room must be well ventilated by opening a window or vent for 30 minutes without... ... Concise Encyclopedia of Housekeeping

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Books

  • Medicinal plants in everyday life, L. Ya. Sklyarevsky, I. A. Gubanov. The book describes over 220 plant species used in scientific and folk medicine. Morphological, ecological information, chemical composition of plants, their distribution are provided...