1. Electrical and electronic equipment room.
2. Communication equipment room.
3. The state protects metal, paper and silk products and audiovisual archives in cultural relics.
4. Flammable and combustible liquid storage room.
5. Before the fire extinguishing agent is sprayed, the flammable gas fire dangerous place can be cut off the flammable and combustion-supporting gas source.
6. Protective area where people are often working.