Misunderstanding:

1, free to install

The power leads must use a copper wire cross section. If you live in an old house, be sure to replace the original aluminum wire with a copper wire. Because the aluminum wire is easily oxidized, the joint is easy to catch fire. There have been surveys 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 the method of slotted and buried pipe for aesthetics. Xia Dong reminds that the wiring must follow the principle of “fire line into the switch, zero line into the lamp head”, and also set the leakage protection on the socket. Device.

2, the position is too low

Many homes feel too high to be aesthetically pleasing when installing sockets and will be placed in a lower concealed location. However, Dr. Xia Dong of the Institute of Electrical Engineering of the Chinese Academy of Sciences said that it is easy to cause water to splash into the socket when mopping the floor, resulting in a leakage accident. According to the industry regulations, the wall-mounted socket is preferably not less than 1.8 meters from the ground; the concealed socket is not less than 0.3 meters from the ground. The sockets for kitchens and bathrooms should be more than 1.5 meters above the ground, and the outlets for air conditioners should be at least 2 meters.

3. Lack of protection

There is often water and fumes in the kitchen and bathroom, so it is best to install a splash-proof box or plastic baffle on the socket panel. In addition, some decoration companies often make the ground line the same when installing the three-hole socket, and 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 enclosure. Once the appliance leaks, it can cause people to get an electric shock.

4, sharing

This practice can overload the appliance and cause a fire. High-power appliances such as air conditioners, washing machines, range hoods, etc., preferably use separate sockets. 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.

5, less loop

There is only one loop in the old house. Once any line is short-circuited, the electricity used in the entire room will be paralyzed. In general, the outlet can choose two or three circuits, the kitchen and the bathroom go all the way, and the air conditioner uses one circuit.

6, using the old national standard

The universal hole socket, that is, the jack can be compatible with two or three poles at the same time, and even the sockets of non-daily use plugs such as British standard, American standard and European standard. However, such a socket has a large jack, and the contact area between the socket tab and the electrical plug is too small, which easily causes the contact sheet to overheat and cause a fire accident.

The two-core socket is easier to distinguish from the appearance. There are three-pole jacks on the plug-in board, but the plugs that come with the plug itself have only two plug-in products, which are two-core sockets. This type of socket lacks a ground wire. In the process of use, once an insulating component inside the appliance is damaged, the current will fill the surface of the electrical appliance. Since the current cannot be introduced into the ground through the two-core socket, it is easy to cause an electric shock accident.

By understanding, when using plugs and sockets, we must follow the correct method to operate. If you have the above use, for your safety, it is recommended that you deal with it in time to avoid unnecessary losses.