Regarding Class A intermediate warehouses in Class C workshops as specified in the Building Code
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In the Code for Fire Protection Design of Buildings GB 50016-2014 (2018 edition), Article 3.1.2·····； It can be determined based on the part with lower fire hazard under one of the following conditions: 1. The proportion of the production area with higher fire hazard in the total floor area or fire compartment is less than 5%, or in case of factories of categories D and E, the proportion of the painting areas is less than 10%; furthermore, in the event of a fire, it is not possible for the fire to spread to other areas, or effective fire prevention measures have been taken for the production areas with higher fire hazard ； When an intermediate warehouse is installed within the factory building as specified in Article 3.3.6, the following requirements shall be met: 1. Intermediate warehouses of Category A and B shall be located against a wall, and their storage capacity should not exceed the amount required for one day and one night ； I have some doubts regarding these standardized excerpts I’ve taken. It is presented now for everyone’s discussion. 1. There is a Class C warehouse, and I want to build an intermediate warehouse within it. This intermediate warehouse is of Class A and is capable of holding the amount of goods required for one day and night. However, the storage volume in this intermediate warehouse far exceeds 5%, and even exceeds 10%. This workshop operates on a continuous basis, which means that there is always a quantity of goods equivalent to one day and night’s worth stored there; obviously, the storage volume also far exceeds the required limit of 25 m3. Without changing the fire hazard level of this Class C production workshop, is it acceptable to build this intermediate warehouse in this way? Could the fire classification of Class C production workshops be upgraded to Class A? 2. Do the Class A intermediate warehouses located in Class C production workshops need to comply with this 5% requirement? Is there a basis if it is not followed? 3. Is there an amount of materials in this Class A intermediate warehouse corresponding to one day and night? 50 kg can represent the amount for one day and night, as can 5 tons. How should this be handled? I would appreciate it if experts could share their opinions on the issues mentioned above. Help me answer my questions.
Do people no longer use forums these days? No experts have seen the post I made.
1. As long as the percentage exceeds 5%, the fire category of the plant or warehouse must be determined as high-risk. 2. An intermediate warehouse refers to one located within a process unit; those situated inside a regular warehouse are not considered intermediate warehouses but rather ordinary warehouses. 3. The amount required for one day and night refers to the storage capacity of intermediate warehouses in the plant area, and it has no impact on determining the fire category
1. The owner of the workshop and warehouse may not have yet distinguished between them； They are different ； 2. It is definitely necessary to comply with the regulatory provisions; these regulations are based on GB standards, not GB/T standards ； 3. What does it mean to use 5 tons of Category A substances in a 24-hour period? My understanding is that this applies to petrochemical or large-scale chemical manufacturing projects, where petrochemical regulations must be followed.
1. I don’t understand – you mention a Class C warehouse one moment and a Class C workshop another. If it’s a warehouse, it definitely won’t work; warehouses are classified based on the severity of the risks involved. If it is the workshop’s interpretation based on the text explanations, there are quantitative requirements. 2. It will definitely be carried out. 3. This quantity is determined based on your production process or usage amount. But it also needs to meet the requirements of statutory interpretation, including quantitative criteria
I’m talking about the intermediate warehouse inside the workshop.
It’s okay if you didn’t understand; please take a look at these two clauses in the Building Code, and then consider my question.
How can it be a Class C factory when so many Class A substances are used?
The Building Code does not specify a limit on the quantity of certain Class A materials; it only states that the amount for one day and night must be strictly controlled.
1. The conditions you mentioned will not affect the existence of the intermediate warehouse. Intermediate warehouses do not change the fire hazard of the factory building. For Class A intermediate warehouses, the storage volume should not exceed that for one day and one night, and the area must meet the specified requirements.
2. The 5% you mentioned is used to determine the conditions of the factory building. Refer specifically to Code for Building Design 3.1.2. 3. There is no evidence for this at present; 50 kilograms is generally sufficient. But 5 tons is definitely not feasible; Category A items are generally flammable and explosive, so wouldn’t 5 tons amount to a bomb? ? ?