Check your home's electrical wiring
As people's living standards improve, their electricity consumption will continue to increase. Many minor hidden dangers are often ignored for a long time and eventually become "hidden killers". The common causes of electrical fires are as follows:
01 Short circuit failure
Household electrical equipment may cause short circuit due to insulation damage, circuit disrepair, operating errors, etc. The heat generated by the short circuit may cause combustion, leading to fire.
02 Line overload
Irrational selection of lines or equipment, excessive load current of the lines, long-term overload operation of electrical equipment, etc., may cause overheating of the lines or equipment and lead to fire.
03 Poor contact
If the joints are not firmly connected or tight, the pressure of the moving contacts is too small, the contact resistance is too large, and the contact part overheats and causes fire.
04 Poor heat dissipation
If high-power electrical equipment lacks ventilation and heat dissipation facilities or the ventilation and heat dissipation facilities are damaged, heat will accumulate, causing fire.
05 Improper use
If electrical appliances such as electric heaters or electric irons are not used as required, flammable and explosive items are piled nearby, and the power supply is forgotten to be disconnected after use, it may also cause fire.
Therefore, in our daily life, we should pay more attention. The following are some preventive measures for electrical fires:
01 When decorating and replacing electrical appliances and wires, buy good quality wires and parts. Do not buy three-no products for cheapness, and be more careful not to buy counterfeit and shoddy products.
02 The wires in the home should be replaced in time. When replacing, find an electrician with a professional qualification certificate to prevent accidents caused by improper operation during replacement, and fire caused by short circuit of wires due to non-standard connection after replacement.
03 According to the thickness of the cross-section, the safe current carrying capacity of the wire is specified for the rated current it can withstand. If the line is overloaded, it will cause a fire or burn the equipment used. Therefore, electrical appliances must be used within the carrying range of the wire.
04 When the circuit fuse is blown due to overload electricity in the home, do not use copper wire or iron wire instead, and remember to install a leakage protection device.
05 Ordinary power strips and multi-function power strips are the most commonly used circuit transfer connection tools for household appliances. When purchasing power strips, choose products with quality assurance. At the same time, pay attention not to plug two high-power appliances into the same power strip.
06 Electrical equipment should be turned off in time after use. When leaving home, be sure to turn off the electrical appliances and cut off the power supply to prevent overtime use of home appliances from causing overheating and fire.
If the following phenomena and precursors appear, you should pay attention to the wiring at home in time. The insulation of the wire will first burn due to overheating, emitting an unpleasant smell of burning rubber and burning plastic. When you smell this smell, you should think that it may be caused by the electrical circuit. If no other reasons can be found, the power should be turned off immediately until the cause is found and properly handled before the switch can be turned on to supply power.
When a fire occurs in electrical lines or electrical equipment and ignites nearby combustibles, we should generally cut off the power to extinguish the fire, that is, according to the different conditions of the fire, cut off the power supply in time and then put out the fire.
Be careful not to use water to put out the fire first, because electrical lines and electrical equipment are generally energized, and using water to put out the fire may cause electric shock. If you are not sure whether the power supply has been cut off, you can use dry powder, carbon dioxide, carbon tetrachloride and other fire extinguishers to put out the fire.
