The main changes of the new version of the national standard for fire doors compared with GB12955-1991 and GB14101-1993 are as follows:
——Increase the content of fire doors classified by material;
——The fire resistance classification of fire doors has been revised. The original classification is changed to A, B and C, and this edition is changed to “Insulation Fire Door (Type A)†and “Partial Insulation Fire Door (Type B)â€. And “non-insulated fire doors (category C)†classification;
——The requirements for fire door materials are more comprehensive and specific, and materials other than metal materials increase the combustion properties of the materials and
Material burning smoke toxicity requirements;
——Remove the wind pressure deformation resistance, air permeability resistance and rainwater penetration resistance of wooden fire doors used as exterior doors of buildings
Claim;
Fire doors - the performance requirements for fire locks are more specific;
- the performance requirements for fire hinges (hinge) are more specific;
——The performance requirements of the door closer are more specific;
——More requirements for fireproof glass;
——Increased the quality requirements and test methods for the door of the fire door;
- increase the requirements and test methods for the bending of the width of the door leaf;
—— Increase the requirements and test methods for the gap between the door leaf and the door frame;
- increased requirements and test methods for fire door flexibility;
——Increased the requirements and test methods for fire door reliability;
——Improved the test method for the door leaf distortion of fire doors;
——Increased the measurement method of the overlap size of the door leaf and the door frame;
- increased the criteria for judgment;
The new version of the standard introduces the concept and requirements of some insulated fire doors and non-insulated fire doors from international and foreign standards. The classification of fire doors is changed from heat insulation fire doors to heat insulation doors (A). Class), partial insulated fire doors (Class B) and non-insulated fire doors (Class C) are classified; at the same time, the fire resistance limits of the original Class A, B and C fire doors are adjusted to 1.5h, 1.0h and 0.5 h, enriching the types of fire door products in China, increasing the choice of practical applications. For applications requiring only partial insulation or fire integrity requirements of fire doors, some insulated or non-insulated fire doors may be used. . The new standard also stipulates that if the material is filled in the door leaf, it should use fire-proof and heat-insulating materials that are non-toxic and harmless to the human body, so as to reduce the impact on human health. These regulations not only make the installation of fire doors more reasonable, but also reduce the production cost and raw material consumption of fire doors, meet the requirements of environmental protection and building a conservation-oriented society. At the same time, the new version of the standard has also increased the content and requirements of steel wood fire doors and other material fire doors, providing a technical basis for the production and inspection of new materials, new technology applications and new fire doors, expanding the development space of fire door manufacturers. .
Class A fire doors, also known as fully insulated fire doors, can meet the requirements of fire resistance and fire integrity at the same time within the specified time. The fire resistance grades are 0.5h (Grade C), 1.0h (Grade B), 1.5. h (grade A) and 2.0h, 3.0h.
Class B fire doors, also known as partially insulated fire doors, have a fire and heat insulation requirement of 0.5 h and fire integrity levels of 1.0 h, 1.5 h, 2.0 h, and 3.0 h, respectively.
Class C fire doors are also called non-insulated fire doors. They are not required for fire resistance and heat insulation. They only meet the requirements of fire integrity during the specified refractory time. The fire integrity grades are 1.0h, 1.5h and 2.0h respectively. , 3.0h. In the British BS standard, there is the content of non-insulated fire doors.
GB16809-2008 "fire window" standard specifies the naming, classification and code, specifications and models, technical requirements, test methods, inspection rules, signs, packaging, transportation and storage of fire window products, suitable for lighting function in buildings. Steel fire windows, wooden fire windows and steel-wood composite fire windows, other fire windows can also be implemented. The new standard corresponds to the fire door standard to modify the relevant fire resistance performance parameters of the fire window. Compared with the 97 version of the standard, the main changes are as follows: the scope of application of the standard has been expanded; the classification method of fire resistance of fire windows has been modified with reference to international and foreign standards, according to "insulation (Class A)" and "non-insulation (C Class)" was classified and added five fire resistance grades from 0.5h to 3.0h; the modeling method of fireproof windows was clarified; the quality requirements and test methods of fireproof glass used on fireproof windows were added; fire windows were added Technical requirements and test methods for wind resistance and airtightness, distortion of movable window sash, static operating temperature of heat sensitive components of movable fire window, reliable wooden fire door closing, sash automatic closing time, etc. Type inspection sampling method and criterion.
There are many types of fire doors, such as wood fire doors, steel fire doors, steel fire doors, and other fire doors.
According to the function of use: there are access fire doors, indoor fire doors, etc.;
According to technology: there are electronic fire doors, etc.;
There is no GB1410-93 on the website of the National Standardization Administration, so there is one
GB14101-1993 Standard for general technical conditions for wooden fire doors.
This standard specifies the product classification, specification size, technical requirements, test methods, inspection rules, label packaging, transportation and storage of wooden fire doors. This standard applies to fire doors that use wood or wood products as door frames, door leaf frames, and door leaf panels.
The difference between electronically controlled fire doors and ordinary fire doors:
difference:
Emergency and statistical functions, the system can automatically display the physical location of the designated cardholder on the computer, which is convenient for timely contact.
In the event of an emergency such as a fire, the electronically controlled fire door will automatically open for easy escape, and the entrance and exit can also be automatically opened; when an illegal entry or exit occurs, an automatic alarm will occur.
Container House on wheels mobile home
The container house we see every day are installed directly in a certain position and cannot be dragged at will. However, container houses on wheels are more suitable for flexible applications. They are small and easy to construct, and they are convenient for activities. Especially now many retailers, motels, and herdsmen on the prairie will also use this kind of container house, and its advantages are also obvious.
Wide range of applications
Because the container house on wheels can be moved and expanded (Expandable Container House can be installed on the trailer) and the size and specifications can be customized, so it solves the requirements of many businesses that need store movement. Especially in many places where certificates are required for building houses, it is very suitable for this kind of movable small house. It has a wide range of applications and can also be made into various granny houses, small supermarkets, cold drink halls, dining halls, etc. It is practical and can also be According to the needs of different industries for construction and use.
customizable
Although most of the containers have fixed sizes and specifications, in fact, container houses can be customized according to the needs, and the sizes and specifications can also be determined according to the needs. Especially if you want to use the container house as a bedroom, meeting room, etc., you can choose some large-sized containers and directly match it with a partition. This is convenient for daily use, simple interior decoration, and its practicality is also very good of.
Price concessions
Compared with other types of houses, the price of container houses on wheels is still very favorable, especially because many containers are recycled for secondary use, the cost is low, the construction is convenient, and the price/performance ratio is also very good. Therefore, if you want to choose a cost-effective container house, you only need to contact a regular manufacturer for cooperation. Custom container houses are also very cost-effective.
Now there are many manufacturers that can provide us with customized processing services for container houses on wheels. We only need to clarify our needs and then contact the manufacturer for customization. Moreover, the manufacturer will also provide us with good after-sales service, and the long-term use of high-quality container houses is also guaranteed.
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Henan Jinming Metal Material Co., Ltd. , https://www.jinminghouse.com