In China's current “military service firefighting systemâ€, firefighters are all serving military personnel, so fire fighters who are fighting in front of the fire are mostly young people. According to the normal process, after the recruits enter the fire brigade, they will receive a series of training in the first year. They will not participate in the fire fights, or be held in positions farther away from the fire point. However, they are actually very difficult to do. Especially in the autumn and winter seasons each year, veterans are retired, and the recruits have not yet arrived or have just entered the team. This period is also a period of frequent fires.
In response to this phenomenon, some people have called for the establishment of a professional system for firefighters, which they believe can greatly reduce the number of firefighter casualties. Because non-professionalism allows firefighters to have accumulated a certain amount of experience, they face retiring, and professionalism can leave these people behind, so that young people who do not have much experience can not be allowed to get on the line of fire.
How are fire fighters abroad made?
1, the United States - competitive admission rate of less than 1%
Each year, thousands of people apply for occupational firefighters, but the acceptance rate is less than 1%. The minimum standard for professional firefighters is high school. Many departments require applicants to have at least two years of specialization in fire science, and some even require a university degree. After passing the test, applicants will receive about 600 hours of theoretical training to learn about physical, chemical, mathematical, and fire-fighting related to fire conditions.
2. Finland - Fire Education From the age of 10, Finns began to accept disaster prevention and extinguishing knowledge education from the age of 10. At the age of 16, physical fitness tests were conducted. After the age of 18, 50 hours of professional fire fighting training was conducted before they were accepted as volunteer firefighters.
3. UK - Average Daily Exercises Fight 8 Fires There are many firefighters training bases in the UK. All firefighters and leaders must undergo rigorous training in order to take up posts. During the training, the trainees performed an average of 8 super fires per day, which is equivalent to 4 years of actual combat experience.
What should you watch out for when fighting a dangerous chemical fire?
For explosives fires, do not cover it with sand, otherwise it will increase the explosive power of explosions; when fighting stacks of explosives, the water flow should be lifted to prevent the strong water from directly hitting the stack, so as not to cause the collapse of the stack. explosion.
For wet flammable items, it is strictly prohibited to use water, foam, acid and alkali and other wet fire extinguishing agents to save.
When fighting fires of poisons and corrosives, it is necessary to use low-pressure water or spray water as much as possible to prevent spills of corrosive chemicals and poisons. In the case of acid or alkali corrosion products, it is best to administer the corresponding neutralizing agent to neutralize them.
Combustible solids and spontaneously combustible items can generally be saved with water and foam, as long as they can control the burning range and gradually extinguish them. However, there are a few special methods for fighting flammable solids and spontaneous combustion. Such as 2,4-dinitroanisole, dinitronaphthalene, naphthalene, etc. are easily flammable flammable solids, heat release flammable vapor, can form an explosive mixture with air, especially in the interior, prone to deflagration, in the fight During the process, misty water should be sprayed over and around the burning area from time to time, and all surrounding fire sources should be eliminated.
In the event of a fire, what chemicals cannot be sprayed?
Calcium carbide reacts with water to generate acetylene, while a large amount of heat is released; acetylene is mixed with air to a certain extent, and explosion occurs at a certain temperature. It can be seen that calcium carbide is a type of paradigm that cannot use water to extinguish water, and that water can expedite the explosion. There are also silicon-calcium alloys, sodium cyanide, toluene diisocyanate (TDI), and the like.
In addition, there are several special substances: nitrates, diazots, nitro compounds (TNT, nitrocellulose, etc.). These substances are explosives themselves and are more difficult to rescue. They can all be used for explosives. Heat or shock can explode, so you can't directly use water to impact, you can only try to cool down.
Ground Screw is made of material Q235 and finished by hot dipped galvanized. They are widely used in foundation system for solar panal, fence, wooden house, advertising boards, flag pole and etc. They can be easily installed by spiral piling machine, no digging, no concrete, no waitting, much convenient,cost effective, time saving and environmentally than concete foundation.
Ground screw technology is known worldwide and eliminates the need for concrete footings.
They are installed much like a traditional screw which allows them to be set within minutes--not hours or days like concrete. Ground Screw Foundations can be used to secure almost anything into the ground--from solar lighting, road signs, and recreation equipment. Plus, they are suitable for a wide range of soil and ground types, are stable and long-lasting.
Advantages:
1.No excavating, digging, or concrete
2.Installs within minutes
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4.Stable, durable, storm proof, water proof, and secure against wind
5.Environmentally friendly, ecological, and sustainable
6.No damage to surrounding landscape
7.Fast and inexpensive to dismantle and relocate
8.Can be installed into sealed surfaces
Type:
1.Anchor with flange
The end of part is welded with flange which is easy for connections. This type is usually used for buildings and wharf because of its high accuracy and stability.
2.Anchor with U plate
The end of part is weld with U shape plate, this kind of anchor has good performance in connection and easy for operation. Normally used for fence and barrier.
3.Anchor with nuts
This type of anchor is fixed by three or four nuts which means easy for installation. It`s insert length can be adjusted according to customer demands. Normally used for the base of solar panels.
Benefits:
1.Flexible and efficient: the ground screw can be used as a foundation for a variety of permanent or portable ground mounted applications, from single highway signs, to fencing and large scale solar farms.
2.Unbeatable construction times, with top precision: the ground screw is installed using a number of different aids and machinery. It is driven into the ground at the exact point in a matter of minutes
3.Concrete-free innovation: no digging, excavation, wet trades, or curing time, which means no wait, and no delays!
4.Sustainable, cost-effective alternative to traditional foundations: The Honde ground screw is made from 75-80 per cent recycled steel. Ground screw installation is a low impact, vibration free process, as well as being completely and easily removable. Installation and removal have minimum impact on the landscape
5.Safe, robust, and uncomplicated: our ground screws have been stringently tested and gained European wide compliance through TUV Reinland and ISO1461 certification
6.Highways approved in the UK: our ground screw has been approved for use within highways, including passively safe supports and accepted by the Highways Agency for use on motorways and trunk roads. It has also been approved by the German Federal Road & Transport Authorities for the erection of all types of traffic and directional signs
6.Proven technology in renewable energy: the ground screw foundation has been used for over 10 years across Europe to install over 800MWp of solar PV programmes and supports over 10 per cent of the world market. In the UK, during 2011 and 2012, our ground screw was the chosen foundation for the construction of some of the UK`s largest solar farms, as well a large number of other schemes
7.Long-lasting, with consistent and reliable performance: our ground screw provides a guarantee of 20 years and have been successfully tested to 30 years` lifetime in the ground, with an overall life span of up to 50 years.
Ground Screw
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Hebei Honde Plastic & Metal Co., Ltd. , https://www.foundation-system.com