1. If there are more than 50 students in the classroom, there should be two entrances and exits. Safety exits, stairs, passages, etc. Located on the first and second floors underground, it should have a clear width of 0.8m for every 65,438+000 people (first and second fire resistance grades). Safety exits, stairs, passages, etc. Located on the first and second floors above the ground, every 100 people should have a clear width of 0.7m (first and second fire resistance rating), 0.8m (third fire resistance rating) and 1.05m (fourth fire resistance rating). Safety exits, stairs, passages, etc. Located on the third floor above the ground, the clear width per 100 people is 0.8m (first and second fire resistance limit), 1.05m (third fire resistance limit). Safety exits, stairs, passages, etc. Located on the fourth and fifth floors above the ground, every1000 people should have a clear width of 1.05m (first-and second-class fire resistance rating) and 1.3m (third-class fire resistance rating). The clear width of the aisle in the classroom should be greater than 2.4m

2. The teaching rooms in primary schools are below four floors, and those in middle schools are below five floors. A building with a fire resistance rating of Grade III shall not exceed 2 floors, and its ceiling shall be made of incombustible building materials. The fire resistance rating of buildings using flame retardant building materials is higher than 0.25H and lower than grade 3.

3. The teaching building should be at least 20m away from Class A and Class B warehouses and dangerous laboratories.

4, for the library, teaching building, laboratory building and other stairs, safe passage, can't set the shutter doors, fences and other facilities that affect the safe evacuation.

5. The combustion grade of decoration materials for low-level teaching places should meet the requirements: ceiling A, wall B 1, floor, partition, furniture, curtains and decorations B2. For high-rise teaching places, the burning grade of decoration materials shall meet the following requirements: ceiling A, wall surface, curtain and furniture cloth B 1, floor, partition, furniture and decorations B2.

6, building fire resistance rating In order to ensure the safety of the building, necessary fire prevention measures must be taken to make it have a certain fire resistance, even if there is a fire, it will not cause too much loss.