With the popularity of home appliances, the number of home outlets has gradually increased. However, if it is improperly installed during the renovation, it will become an "invisible bomb" buried in the wall. According to relevant survey data from the Ministry of Public Security, in the fire accidents that occurred in China in the past 10 years, fires caused by power outlets, switches, circuit breakers, etc., accounted for nearly 30% of the total number of fires and ranked first in all types of fires.
>>>Links: Must-read: The switches and outlets in different rooms are carefully selected
Misunderstanding 1: The socket location is too low
Many home renovations, when installed in sockets, feel too high to be aesthetically pleasing and will be installed in a lower concealed location. However, Dr. Xia Dong of the Institute of Electrical Engineering of the Chinese Academy of Sciences indicated that it is easy to cause water to splash into the socket when the floor is mopped, resulting in leakage accidents. According to industry regulations, it is better to have a wall-mounted socket not less than 1.8 meters from the ground; concealed sockets should not be less than 0.3 meters from the ground. The sockets for the kitchen and toilet should be at least 1.5 meters above the ground, and the outlet for air conditioning should be at least 2 meters.
Misunderstanding 2: free installation of socket wires
Power conductors must use a copper cross-section. If you live in an old house, you must replace the original aluminum wire with a copper wire. Because the aluminum wire is easily oxidized, it is easy to light the joint. There have been investigations showing that the incidence of electrical fires in residential buildings using aluminum wires is several dozen times that of copper wires. In addition, many families use slotting and dark pipe laying for aesthetic reasons. Xia Dong reminded that when wiring, we must follow the principle of “into the fire line into the switch, zero line into the lamp†principle, but also set leakage protection on the socket Device.
Myth 3: Outlet lacks protective measures
Experts warn that there are often water and soot in kitchens and bathrooms. Therefore, it is best to install splash-proof boxes or plastic baffles on the socket panel, which can effectively prevent short circuits caused by oil and water vapor intrusion. For families with children, to prevent children from touching with their fingers or metal objects, use a safety socket with a safety flap.
In addition, some decoration companies often make ground wires void when installing three-hole sockets, and even directly connect the ground wires to gas pipelines. Xia Dong pointed out that these practices are very dangerous. The ground wire is connected to the housing of the electrical appliance. Once the appliance is leaking, it will cause people to get an electric shock.
Myth 4: There is only one loop
There is only one circuit in the old house. Once any circuit is short-circuited, the electricity in the entire room will be paralysed. In general, two or three loops can be selected for the socket, and the kitchen and the toilet are all one way. The air conditioner uses a loop.
Myth 5: Multiple appliances share the same socket
Experts say that this practice will overload the appliance and cause a fire. Air-conditioning, washing machines, range hoods and other high-power appliances are best to use a separate outlet. In general, it is best to install 4 sets of sockets in the bedroom, a set of 2.5 square meters in the living room, and a set of 1.2 square meters in the kitchen.
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