What Are The Misunderstandings Of Wall Socket?

With the popularity of household appliances, the number of power sockets in the home has gradually increased. But if not installed properly, it will become a "stealth bomb" buried in the wall. According to the relevant survey data of the Ministry of Public Security, among the cumulative fire accidents in China in the past 10 years, fires caused by short circuits of power sockets, switches, circuit breakers and other reasons account for nearly 30% of the total, ranking first among all types of fires.

Location too low
Many families feel that when installing sockets, they feel that it is too high and will be installed in a low hidden location. However, Dr. Xia Dong of the Institute of Electrical Engineering of the Chinese Academy of Sciences said that it is easy to splash water into the socket when mopping the floor, resulting in leakage accidents. According to industry regulations, it is best not less than 1.8 meters from the ground for exposed sockets; no less than 0.3 meters from the ground for concealed sockets. Sockets in kitchens and bathrooms should be more than 1.5 meters from the ground, and sockets in air conditioners should be at least 2 meters or more.

Feel free to install
The power conductor must use a copper wire cross-section. If you live in an old house, be sure to replace the original aluminum wire with copper wire. Because the aluminum wire is very easy to oxidize, the joint is easy to ignite. Surveys have shown that the incidence of electrical fires in homes using aluminum wire is dozens of times that of copper wire. In addition, many families in order to be beautiful, will use slotted buried wire, dark pipe laying, Xia Dong reminded, wiring must follow the principle of "live wire into the switch, zero line into the lamp head", but also on the socket to set up leakage protection devices.

Lack of protection
There is often water and fumes in the kitchen and bathroom, so it is best to install splash boxes or plastic baffles on the socket panels.
In addition, when some decoration companies install three-hole sockets, they often make the ground wire useless, or even directly connect the ground wire to the gas pipe. Professionals point out that these practices are dangerous, the ground wire is connected to the electrical shell, once the electrical appliance leaks, it will cause people to be electrocuted.

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This practice overloads the appliance, causing a fire. Air conditioners, washing machines, range hoods and other high-power appliances are best to use independent sockets. Generally speaking, it is best to install 4 sets of sockets in the bedroom, one group per 2.5 square meters in the living room and one group per 1.2 square meters in the kitchen.

Few loops
The old house had only one circuit, and once any of the lines were short-circuited, the electricity consumption of the entire room would be paralyzed. Generally speaking, the socket can choose two or three circuits, the kitchen and bathroom each go all the way, and the air conditioner uses one circuit.

Use the old national standard
Multi-hole socket, that is, the jack can be compatible with two or three poles at the same time, and even the British standard, American standard, European standard and other sockets that are not used daily. However, due to the large jack, the contact area between the socket connector and the electrical plug is too small, which is easy to overheat the contact piece and lead to fire accidents.
Two-core sockets are easier to distinguish from the appearance, where there are three-pole jacks on the plugboard, but there are only two latches on the plug that comes with the socket itself, which are two-core problem sockets. This type of socket lacks a ground wire, during use, once an insulating part inside the electrical appliance is damaged, the current will be spread over the entire surface of the appliance, because the current can not be introduced into the ground through the two-core socket, it is easy to cause electric shock accidents.