the detection time of fire-fighting electricity is determined according to the different functions of fire-fighting places.

1. The inspection period of public gathering places, including theaters, video halls, auditoriums, TV and film studios, hotels, hospitals, nursing homes, schools and kindergartens, is 1 years.

2. The detection period of explosion and fire hazards is 1 years.

3. The testing period in other places is 2 years.

Extended information:

Causes of electrical fire:

1. Leakage. The insulation ability of wires or their support materials is poor, so that there is a small amount of current between wires or between wires and the earth, and the leakage spark can become the source of fire;

2. Short circuit. On the electrical circuit, for various reasons, two points with different potentials meet or collide, resulting in a sudden increase in current. Because the current in the short-circuit circuit is very large, it is easy to produce strong electric sparks and arcs at the short-circuit point, and the metal conductor of the conductor appears traces of melting and erosion. This strong short-circuit arc and molten high-temperature metal can cause the combustion of combustible materials.

3. Overload. The amount of current passing through the guide wire exceeds the safe current value. Because the wire itself has resistance, it will generate heat when passing current. The greater the current, the greater the heat generation and the higher the temperature of the insulation layer of the wire. Once the temperature of the insulated conductor exceeds the maximum allowable working temperature, the insulation layer of the conductor will accelerate aging and even burn, causing fire accidents.

Baidu Encyclopedia-Electrical Fire Safety Detection