Regarding the distance requirement between buried Class A or Class C tank farms and open flames
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In the design process, there is a issue regarding the distance required between Class A or Class C buried tank areas and open flames; however, the building codes do not specify this clearly. One suggestion is that the distance should be 30 meters, but it is not clear where this figure comes from Seeking advice from senior colleagues~
There are no specific provisions on this in the building codes; you can refer to Note 5 of Table 4.3.12 in the petrochemical regulations: the fire separation distance between tank groups and other facilities shall be determined based on the volume of the largest adjacent tank； The fire separation distance between buried storage tanks and other facilities can be reduced by 50%. When a fixed-roof flammable liquid tank is sealed with nitrogen, its fire protection distance can be treated in accordance with the standards for floating-roof and internal floating-roof tanks ； The fire separation distance between Class C B fixed-roof tanks and other facilities can be reduced by 25% compared to that for Class C A fixed-roof tanks.
Thank you for the explanation from above; I checked the standard and learned from it. Thank you! However, what was said upstairs, that “you can refer to the provisions in Note 5 of Table 4.3.12 of the Petrochemical Code,” should actually refer to Note 5 of Table 4.2.12 in the Petrochemical Code (Code for Fire Protection Design of Petrochemical Enterprises GB50160-2008)
Note 3 to Code for Building Design 4.2.1: For fixed-roof storage areas for liquids of categories A, B, and C, semi-outdoor storage areas, and storage areas for liquids in barrels of categories B and C, the fire separation distances from Class A factories (warehouses) and civil buildings shall be increased by 25% as specified in this table. Moreover, the fire separation distances between storage areas for liquids of categories A and B, semi-outdoor storage areas, storage areas for liquids in barrels of categories B and C, and Class A factories (warehouses) or civil buildings shall not be less than 25.0 m. The fire separation distances from locations with open flames or sparks shall be increased by 25% in accordance with the requirements for buildings with a fire resistance rating of level 4 as specified in this table； Note 6: For horizontally installed tanks holding Class A, B, or C liquids that are buried directly in the ground, when the volume of a single tank is less than or equal to 50 m3 and the total volume is less than or equal to 200 m3, the fire separation distance from buildings can be reduced by 50% in accordance with the provisions of this table ； The regulations set out in the building codes are quite detailed
Thank you to the person above for clarifying this! According to what was said, is it correct to understand it as follows: (1) Note 3 in Table 4.2.1 of the building codes, for fixed-roof tank areas containing Class A and B liquids (50
Reply to 5# erfac2: It should be understood as follows: (1) Note 3 in Table 4.2.1 of the building codes, for fixed-roof tank areas containing Class A and B liquids (50