How should the starting and ending points for the fire separation distances in the general layout design of chemical plants be determined?
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How should the starting and ending points for the fire separation distances in the general layout design of chemical plants be determined? If the equipment attached to a Class A factory building is of Class E, should the fire separation distance be calculated starting from the outer wall of the factory building or from the Class E equipment in question?
In the general layout design of chemical plants, the selection of the starting and ending points for calculating fire separation distances should be determined based on specific circumstances. If the equipment attached to a Class A factory building is of Class E, then the fire separation distance should be calculated based on the equipment that poses the greatest fire risk. Normally, the measurement should start from the outer edge of Class V equipment and extend to the nearest point of adjacent facilities or buildings. If the fire risk of Class V equipment is higher than that of Class A buildings, the fire separation distance should be calculated based on the Class V equipment. In addition, it is necessary to consider the possible interactions between the two and the worst-case scenarios, to ensure that a safe distance can effectively reduce the risk of fire spread. .
I have also encountered the same design issue recently, taking into account the safety distances between Class A and Class E equipment as well as adjacent facilities. In accordance with the requirements regarding the starting and ending points specified in fire protection codes, the equipment can be considered separately, and Class A buildings are also taken into account individually.