We cannot do without electricity in our daily lives, and we cannot do without electricity in our production and operation, and substations As the central link of the power transmission and distribution system, if an accident occurs, it may have a serious impact on the entire system. For example, fires and explosions in substations are likely to cause serious harm to the power supply system.
First, case line

Second, the reason

Power transformer fire

Once the power transformer In the event of severe overload or short circuit, flammable insulating materials and flammable insulating oil will be decomposed and burned by high temperature and arc action, and a large amount of gas will be generated, which will increase the internal pressure of the transformer sharply, causing the shell to rupture and a large amount of fuel injection, which will further expand the fire. Hazard

Oil circuit breaker fire

oil circuit breaker The incoming and outgoing wires pass through the insulating sleeve. When the insulating sleeve and the fuel tank cover, the fuel tank cover and the fuel tank body are not tightly sealed, the water in the fuel tank is damp or the fuel tank is dirty, and the insulating sleeve is mechanically damaged, which can cause a short circuit to the ground. Thereby causing an explosion or fire accident.

Cable fire

The cable itself Failure to cause fire, such as the cable head fire due to poor production quality, long-term operation of the cable insulation aging breakdown short-circuit fire. External factors cause cable fire accidents, such as electric welding or cutting metal slag ignites the cable, and the failure of electrical equipment causes a fire to cause the cable to catch fire.

Fire caused by other reasons

Substation except The electrical equipment and cables mentioned above are prone to fires, motors, electric welding and oxygen welding machines, batteries, capacitors, main control rooms and secondary circuits, current transformers, voltage transformers, etc. may also cause fire accidents during use.

Third: Smart Fire Fighting Solution:

1) Establish a set of " perception-evaluation-early warning-disposal-optimization "Fire prevention and control combined with intelligent iterative optimization and improvement of fire protection solutions, continue to improve the fire risk self-prevention and control capabilities of key fire protection units;
Perception: integrated monitoring of smoke, temperature and fire; remote visual supervision; mobile phone monitoring;
Assessment: regional fire risk assessment; single building fire risk assessment;
Early warning: early warning of fire area; early warning of unit area fire; emergency preparation plan to assist decision-making
Disposal: call the fire control center; management of fire-fighting duty personnel; fire-prevention monitoring management; fire-fighting system start-up management
Optimization: accident data analysis; fire protection publicity and education; fire protection supervision improvement; fire simulation drill
 

2) Use 5G Internet of Things information technology, fire technology, wisdom New technologies for firefighting achieve the seven goals of comprehensive perception, dynamic monitoring, intelligent early warning, unified command, rapid disposal, precise supervision, and data analysis, and effectively improve the fire prevention and control capabilities and actual command level of fire rescue agencies and key firefighting units themselves. Create a good fire safety environment for social and economic development, and escort the continuous stability of the society and the sustainable health of the people.
Comprehensive perception: Comprehensive perception of smoke, temperature, and fire
All-weather monitoring: HD camera 360° all-weather monitoring
Intelligent warning: fire control center warning; wireless terminal transmission warning; mobile terminal warning
Scientific command: Make scientific decisions through visual monitoring; initiate relevant emergency preparedness plans;
Quick disposal: emergency evacuation of personnel; activation of fire extinguishing system;
Precision supervision: precise fire area scope; division of risk areas to organize evacuation in an orderly manner;
Data analysis: risk assessment; simulation exercise