What is the definition of flammable and explosive areas in AQ 3022?

This question is too profound^_^ I think the original poster’s understanding is correct. A safety zone is a range, a spatial concept. What part of a certain distance range, or which buildings, facilities, equipment, etc. are included.

I think Class A and Class B are classifications of the fire hazard of substances. If these substances are present in a location, it can be defined as a flammable and explosive area. Of course, this area must meet the fire separation distance standards. The above opinions are for reference only (further discussion is welcome)

This post was last edited by eleg on 2009-10-14 at 13:54. My understanding is that the explosion-proof area includes buildings such as factories, production facilities, warehouses, and loading/unloading platforms, as well as the corresponding designated explosion-proof zones. The specific requirements can be found in the \"GB 50058-92 Code for Design of Electrical Installations in Explosive and Flammable Environments.\" If the requirements regarding fire separation distances are followed, the distances will be too large; the entire factory as well as the surrounding areas will become flammable and explosive zones.:) :-)

AQ 3022 does not state that the classification should be based on the explosion-proof zones specified in GB 50058... There is a difference between fire hazard and explosion protection...

This post was last edited by Guohun on 2009-10-14 at 19:59. AQ 3022—2008 Safety Regulations for Hot Work in Chemical Production Facilities 3.2 Flammable and explosive areas: This standard refers to areas where products are manufactured and stored, which fall under categories A and B in the fire hazard classification as specified in GB50016. I think the original poster’s understanding of the area is correct; this area should also meet the fire separation distance standards and include the relevant range for such distances.

This area includes the fire separation distance; anything beyond that distance is not part of this area

Class A and Class B are classifications for the fire hazard of substances. If these substances are present in a location, it can be defined as a flammable and explosive area. Of course, this area must meet the fire separation distance standards. This includes buildings such as factory buildings, production facilities, warehouses, and loading/unloading platforms, as well as the corresponding explosion-proof areas designated for them. The specific requirements can be found in the \"GB 50058-92 Code for Design of Electrical Installations in Explosive and Flammable Environments.\" Meeting the requirements regarding fire separation distances is very difficult if one wants to fully comply with the standards!

The definitions of flammable and explosive areas as specified in AQ 3022 are different from those in GB 50058... Is there any evidence to show that these two definitions are the same?

The last edit to this post was made by Guohun on 2009-10-16 at 10:40. The definition of inflammable and explosive areas as mentioned in AQ 3022 is different from that in GB 50058; indeed, there is a difference. Therefore, stop constantly referring to the GB 50058-92 Code for Design of Electrical Installations in Explosive and Flammable Environments. In Section 3.2, “Inflammable and Explosive Areas”, of the AQ 3022—2008 Safety Regulations for Hot Work in Chemical Production Units, it is specified that such areas refer to those where items are produced or stored and which fall under categories A and B as defined in GB50016 for fire hazard classification. Code for Design of Electrical Installations in Explosive and Flammable Environments GB50058－92. This code is applicable to the electrical design of new construction, expansion, and renovation projects in environments where explosions and fires may occur or are likely to occur during production, processing, handling, transportation, or storage. Also, some netizens need to take some responsibility – don’t use other people’s ideas as if they were your own.

What I expressed on the 4th floor is merely my personal understanding; I welcome everyone’s criticism and suggestions. I would like to ask Brother Guohun: 1. In AQ3022-2008, “flammable and explosive areas” are defined as Class A and Class B areas as specified in GB 50016. There should be no doubts about this. 2. The Class A and Class B areas defined in GB 50016; the scope of these areas is not specified in GB 50016, and the poster has already explained this, so I believe there will be no doubts regarding it. 3. Then has anyone thought about the fact that areas classified as Category A and Category B as defined in GB 50016 also require explosion protection? The standard for such explosion-proof areas is the Code for Design of Electrical Installations in Explosive and Flammable Environments, GB50058－92; I doubt there are any doubts regarding this. The specifications clearly define the scope and size of the explosion-proof areas; therefore, I personally consider areas prone to fire and explosion to be part of the explosion-proof area. 4. Your view on the national spirit is that flammable and explosive areas should be defined in accordance with the fire separation distances specified in GB 50016. Fire separation distance refers to the mandatory requirements regarding the fire separation and distance between installations and facilities; it does not mean that such distances apply only to Class A and Class B areas. Guo Hun, can you find evidence showing that the Class A and Class B areas defined in GB 50016 include fire separation distances?