The following points should be noted in the design of fire protection zoning
(1) fire protection zones should be separated by firewalls. When opening doors and windows on the firewall. Class A fire doors and windows should be used. One or two fire-resistance class single-story factory (except Class A factory) such as the area exceeds the specified value, set up firewalls have difficulties, the available fire shutter plus water curtain or fire water curtain belt to separate the mouth
(2) first-class fire-resistance class multi-storey and second-class fire-resistance class single-story, multi-storey textile factory (except linen spinning factory) the maximum permissible footprint of its fire protection partition can be increased by 500/, but the raw cotton of the above-mentioned factory building shall be separated by fireproof wall, and the fireproof wall shall be used for fireproofing. However, the above plant of raw cotton opening, clearing flower workshop should be separated by firewall
(3) one or two fire-resistant single-storey, multi-storey paper production joint plant, the maximum permissible footprint of the fire protection zone can be increased by 1.5 times as stipulated.
(4) A, B, C plant with automatic fire extinguishing system, the maximum permissible area of fire protection partition can be doubled according to the regulations; D, E plant with automatic fire extinguishing system, the area is not limited. Local increase, the increase in area can be calculated according to the local area of double the mouth