Explosion-proof security products market is very chaotic and the safety hazard is very large

This year when I was writing "An Analysis of the Domestic Security Industry from the Production Format of Surveillance Cameras", I have searched for relevant information on the production of different types of cameras in the security industry, including information on companies that manufacture explosion-proof cameras and their products.

Explosive mixtures are commonly found in places such as coal, petroleum, chemicals, textiles, food processing, and military industries where they are produced, processed, stored, transported, etc. Explosions are extremely hazardous. With the acceleration of the industrialization of the security industry, security monitoring products are increasingly used in some explosive hazardous locations. Many security companies have started to produce explosion-proof security products. Only on the HC Security Network can be found in 8448 explosion-proof security products, including 1010 explosion-proof cameras. I probably have statistics on more than 80 domestic manufacturers producing "explosion-proof cameras" (of which more than 40 in Shenzhen). If I add explosion-proof heads, explosion-proof protective hoods, and explosion-proof integrated rotary tables and foreign-funded enterprises, I claim to be able to There will be more than 100 manufacturers of explosion-proof cameras and their key components. However, when you look closely, there are many problems. Most of the manufacturers in this area do not have the qualification for manufacturing explosion-proof electronic products. Many so-called explosion-proof products have no product explosion-proof certificates. From this point of view, the market for explosion-proof security products is quite confusing. If such "explosion-proof products" enter the market in large numbers, there will be great security risks.

The most prominent problem in the market of explosion-proof security products is that many enterprises have “undocumented” production. As the explosion-proof electrical equipment involves personal and property safety, on April 29, 2001, the General Administration of Quality Supervision, Inspection and Quarantine issued a State Quality Inspection Letter [2001] No. 28: “Circular on Issues Concerning the Production License of Explosion-Proof Electrical Products”. The notice pointed out that the state continues to implement the production license system for explosion-proof electrical products; the state has established the "National Industrial Products Production License Office Inspection and Approval Department for Explosion-Proof Electrical Products." The inspection department is set up at the National Quality Supervision and Inspection Center for Explosion-proof Electrical Products and undertakes issues related to production licenses for explosion-proof electrical products.

After the implementation of the "Law on Administrative Licensing", on December 7, 2007, the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China issued the No. 174 Document of 2007: "Announcement Concerning the Announcement of Catalogue for the Implementation of the Production License System," and the state continues to Product production license system, explosion-proof electrical equipment must have explosion-proof certificate, the production unit must have explosion-proof electrical product production license. A total of 66 products were included in the appendix of the bulletin, "Product Catalog for Implementing the Production License System," of which 11 items are explosion-proof electrical products. From the data in our database, most manufacturers and even the vast majority of manufacturers of explosion-proof cameras and explosion-proof camera components do not have production licenses for explosion-proof electrical products. Most models of explosion-proof cameras also do not have explosion-proof certificates.

People have adopted various technical methods to prevent the formation of explosive dangerous environments and the explosion of explosives. Therefore, each explosion-proof product should be marked or illustrated with its explosion-proof type. According to the requirements of GB3836 "Electrical Equipment for Explosive Gas Environments", the explosion-proof electrical equipment includes: Explosion protection type + equipment type + (gas group) + temperature group. If the electrical equipment is type II flameproof, the gas group is group B, and the temperature group is T3, the explosion-proof mark is: ExdIIBT3. According to the requirements of GB 12476 "Electrical Equipment for Combustible Dust Environment", the explosion-proof signs for dust-proof electrical equipment include: explosion-proof type + flammable dust environment partition + temperature group, such as type A equipment that can be used in 21 areas. The highest surface temperature TA is 170°C, and its explosion-proof mark is: DIP A21 TA170°C or DIP A21TA,T3. However, most of the explosion-proof cameras that we published from related companies' explosion-proof product descriptions and technical indicators do not have the introduction of the key indicators of explosion-proof type and explosion-proof mark. If this so-called explosion-proof product with explosion-proof type, the use of hazardous environmental levels, use conditions are not clear, how can we safely install and use this kind of explosion-proof products that involve safety?

Some companies that manufacture explosion-proof pan/tilt heads, explosion-proof shields, and integrated explosion-proof turntables are also selling their explosion-proof products to camera manufacturers and security contractors, as if only the explosion-proof camera with explosion-proof protective cover and explosion-proof head can be used as explosion-proof. Camera sales and use. In fact, such "explosion-proof cameras" that are assembled still belong to "undocumented" production, and their products do not equal to having explosion-proof certificates. I believe that the use of explosion-proof shields and explosion-proof heads that are manufactured by qualified manufacturers and used as the key components of explosion-proof cameras can accelerate the development of explosion-proof cameras, but the products still need to be submitted for inspection and certification. It is also necessary to obtain an explosion-proof electrical product production license.

More serious is the individual camera manufacturers, with the anti-riot camera as an explosion-proof electrical equipment sales, to call customers. Anti-riot monitoring equipment and explosion-proof monitoring equipment are completely different, the former is mainly able to fight against violence without equipment damage, but can not prevent the explosion. For example, some of the so-called “explosion-proof camera” product pictures show the use of boring heads to hit the camera, some “explosion-proof camera” technical indicators are XXXKgf riot, and explosion-proof electrical products, explosive hazards, signs, indicators see No, not to mention the explosion-proof certificate of the product and the company's production license for explosion-proof electrical products.

It should be pointed out that unlicensed production has been illegal, and illegal production and sale of counterfeit and explosion-proof electrical products will bring huge risks to users. According to relevant statistics, about half of the explosions were caused by unqualified electrical lines and electrical equipment. In the event of accidents caused by the use of unqualified and unqualified “explosion-proof electrical products”, not only manufacturers, distributors and contractors Negative economic and criminal responsibility means that users cannot escape from misconduct or negligence.

At present, the market for explosion-proof security products is quite confusing. This poses a great threat to production safety and social safety and directly affects the healthy development of the security industry. It is hoped that industry management agencies, security companies, security media, and users will all pay attention to this. The chaos in the explosion-proof security product market can no longer continue.