What is the principle of laboratory safety electricity

I, laboratory teachers and students must always bear in mind "safety first, prevention first" policy and "who is in charge, who is responsible for" principle, do a good job of laboratory electricity safety.

Two, the use of electronic equipment, should first understand its performance, according to operating procedures. Before the experiment to check the electrical equipment, and then connected to the power supply; after the end of the experiment, the first off the instrumentation, and then turn off the power supply.

Three, if the electrical equipment occurs overheating phenomenon or the appearance of burnt flavor, you should immediately turn off the power.

Four, laboratory personnel such as leaving the laboratory or in case of a sudden power failure, should turn off the power, especially to close the power switch of the heating appliances.

Fifth, the power supply or electrical equipment fuse blown, you should first check the cause of the fuse is blown, troubleshooting and then according to the original load to replace the appropriate fuse, do not arbitrarily increase or use other metal wire instead.

Sixth, there can be no exposed wires in the laboratory; if there is exposed, a safety cover should be set up; need to be grounded in accordance with the provisions of the grounding equipment, in order to prevent leakage of electricity, electric shock accidents.

VII, in case of electric shock, should immediately cut off the power supply, or insulated objects will be separated from the wire and the electrocuted, and then implement rescue.

VIII, near the power switch shall not store flammable and explosive substances or pile up debris, so as not to cause fire accidents.

nine, electrical equipment or power lines should be installed by professionals in accordance with the provisions of the overloading of electricity is strictly prohibited; not allowed to pull, connecting wires; strictly prohibit the use of electric stoves in the laboratory, electric heaters for warmth and experimental work other than electricity.

Ten, the strict implementation of school rules and regulations on electricity.