Electrical fire refers to the fire caused by electric energy as a fire source, mainly occurs in the building, and is easy to evolve into a major fire accident. Next, let's talk about the common causes of electrical fires.
1. Overload: When the current through the electrical appliance exceeds the allowable value, it is called overload. Overload can lead to insulation burnout, which in turn leads to disaster.
2. Poor contact: Electrical appliances may also cause disasters such as poor contact, especially the commonly welded or bolted connection of the connecting part, once loosened, the contact resistance will increase, resulting in overheating of the connecting part and causing a fire.
3. Short circuit: short circuit of electrical appliances, when short circuit, metallic contact is caused between the phase wire and the neutral line or phase wire, resulting in a short circuit. In the event of a short circuit, the temperature rises sharply, causing the insulation material to burn and form a fire.
Fourth, leakage fire: leakage will lead to the leakage of current, if the leakage occurs in the part with small resistance, it will produce local high temperature, resulting in the fire of nearby combustibles, thus causing disasters.
5. Excessive contact resistance: The contact resistance is too large, especially the contact resistance of the connector. Excessive contact resistance can cause damage to the insulation of the wire, causing short circuits and fires. At the same time, poor joint contact can produce electrical sparks, which can cause fires.
6. Arc and sparks caused by short circuits: arcs and sparks caused by short circuits, accidents caused by electric sparks, accidents caused by arcs, and accidents caused by static electricity.
7. Accumulation of combustibles near electrical equipment: If there is an accumulation of combustibles near electrical appliances, once the electrical appliances fail or are not used properly, electrical fires may be caused.
8. Circuit failure of electrical equipment: Circuit failure of electrical equipment is one of the four causes of fire. Some of them are short circuits caused by old lines, and some are faulty wires caused by operational errors. Aging wires, overdue service of electrical appliances, and aging lines.
9. Lightning strike: Lightning strike is a manifestation of lightning, which causes electrical fires through discharge and counterattack. Lightning is a natural phenomenon, but when lightning occurs, it can cause damage to electrical equipment and fires.
10. Overcurrent: The thermal effect of overcurrent may cause short circuit or overload of electrical appliances, which may lead to overcurrentFires.
Ten. 1. Power supply overvoltage: Power supply overvoltage causes the wire insulation to be broken down, which in turn causes a fire.
In order to prevent electrical fires, the intelligent micro-break integrates a variety of protection functions for this situation, and the intelligent micro-break can monitor the load line in real time, and upload the data to the platform in real time through the Internet of Things transmission technology. Through the platform, we can intuitively understand the electricity consumption situation, and locate and deal with abnormal electricity consumption in time.
The intelligent micro-break has a variety of protection functions, such as: anti-surge, leakage protection, short-circuit protection, under-voltage protection, over-voltage protection, power limit, chip over-temperature alarm, ignition protection, vicious load protection, etc.