What direct impacts does the classification of Class A and Class B factories and warehouses in the construction industry have on instrument design?
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Is this classification of factories, warehouses, and tank areas into Category A, B, and C in the construction field corresponding to the explosion-proof zones designated by the electrical engineering field? Which categories require the installation of combustible gas detectors?
Class A refers to areas where the explosion threshold is less than 10%, while Class B refers to areas where the explosion threshold is greater than 10%. The classification of buildings into Category A and Category B mainly specifies requirements such as the fire protection rating, layout, and fire separation distances of the buildings. The explosion protection rating of electrical instruments is determined based on the classification of explosion-hazardous areas. Gas detectors should be installed in areas where flammable gases are present.