Fire category

The fire risk categories are light, medium, heavy and warehouse.

1, mild risk level: buildings for the elderly, children, hotels and office buildings with a building height of 24m or less. Only the buildings in the closed system are set in the walkways.

2. Medium risk level: high-rise civil buildings: hotels, office buildings, comprehensive buildings, postal buildings, financial and telecommunications buildings, command and dispatch buildings, radio and television buildings (towers), etc.

3. Serious danger level: the material preparation workshops of printing plants, alcoholic products, flammable liquid products and other factories. Flammable liquid spraying operation area, solid flammable materials, flammable aerosol products, solvents, paints, asphalt products and other factory materials and the lower part of the production workshop, studio and stage "grape trellis".

4. Warehouse risk level: food, tobacco and alcohol, incombustible articles packed in wooden cases and cartons, shelf areas of warehouse-type shopping malls, etc. Wood, paper, leather, grain and its products, cotton, wool, hemp, chemical fiber and its products, household appliances, cables, B-class plastics and rubber and their products, steel-plastic mixed materials products, all kinds of incombustible articles packed in plastic bottles and boxes, and warehouses where all kinds of articles are mixed.