How can we prevent this?

　　As we all know, where the people live, all places that have requirements of production, transportation, and all economic activities, all need to explore and develop all of the activities, as well as any in the development of the development of science and technology innovation project activities, cannot leave the electricity. Wire and cable is widely used in economic system used in the operation of facilities, equipment, and services in all social activities and deeply into every family and personal daily life, therefore, wire and cable products has reached a state of ubiquitous.
　　However, as new products are used, promoted and restudied in practice, fires caused by power lines are still frequent; In addition, the plastic insulation of wires and cables with PVC in the combustion of thermal decomposition, will release a large amount of HCl, Cl2, CO and other poisonous gas, fire and within the scope of the people of the surrounding area or biological cause serious harm. In order to prevent the occurrence of cable fire and smoke combustion, fire prevention countermeasures:
　　(1) keep the cables away from the steam and oil pipes as far as possible from heat sources and sources of fire. Combustible gas or combustible liquid pipes shall not be cable. If it is laid in a heat pipe, it should be insulated. There should also be no overhead cables in places where explosive and fire hazards are at risk.
　　(2) to isolate inflammable and explosive materials in cable sections which are easily affected by external fire, use fireproof box, and apply brush fire retardant materials. To prevent the spread of fire. The cable trench in the vicinity of the charged electrical equipment (such as high voltage current and voltage transformer) should be sealed well.
　　(3) to seal and plug the hole of cable to the hole and shaft to control cable interlayer all hole wall, the roof cable perforation, and control cabinet, a cable holes at the bottom of the box, dial, etc., must be tightly sealed with refractory materials. Never use wood or other flammable things. The m holds or closes. To prevent the spread of cable fire from the disaster area.
　　(4) the fire section of the setup firewall and firewall and fire, is the purpose of the fire control in a range of cable section, to reduce fire mouth in the cable tunnel, ditch and the brackets of the following parts should be set up: different factories or workshop at the junction, in indoor and outdoor, different voltage distribution equipment junction. In the connection between the cable channel of the different units and main transformer, the tunnel is connected with the main control, the set control, the network control room, and the firewall with the door. The long distance cable should be set up for every 100 megabytes of cable.
　　(5) to prevent the failure of the cables from burning up the structure of the cables to prevent the accumulation of dust and water; To ensure the quality of the head of the cable, the head of the cable should be separated from the fire-resistant board, and the cable to the cable is lost. To use heat-resistant cable in high temperature, to make fire treatment for fire control cable; Strengthen ventilation, control the temperature of the tunnel, and apply the cable to the layer.
　　The automatic alarm and fire extinguishing device can be set up in the proper position of cable, cable tunnel and cable shaft.