How does school exit sign set?

School is a high incidence of fire, in order to be able to quickly and safely evacuate people in case of fire, in the building fire design must be set up a sufficient number of exit signs.
How does school exit sign set?
1. Each building or each fire zone of the number of exits should not be less than two doors should be open to the direction of evacuation.
2. The door for personnel evacuation should not use hanging door or side sliding door. Revolving door is strictly prohibited.
3. When the door is opened, the door leaf shall not affect the width of the evacuation walkway and platform.
4. The emergency exit sign shall not set a threshold, steps, evacuation door should be opened to the direction of evacuation, shall not use shutter doors, turnstiles, hanging doors and side doors, the door shall not set curtains, screens and other shielding objects affecting evacuation.
5. The emergency exit signs in the building should be arranged in different directions, and the distance between them should not be less than 5.00m.
6. The exit signs shall be scattered and shall be clearly marked. Grade I and ii fire-resistant buildings.
The net width per 100 people of evacuation corridors, exit signs, evacuation stairs and evacuation doors on each floor shall not be less than the provisions in table 5.3.17-1; When the number of people on each floor is different, the total width of the evacuation stairs can be calculated in different layers. The total width of the upper and middle stairs in an underground building shall be calculated according to the number of people in the lower floors of the building.

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