First, the switch socket specifications
1, switch socket size
At present, the common switches in the market are 86, 1 18, 120, 146. Different types of switches are mainly different in panel size and design.
Type 86 switch: The appearance of switch socket is square, and the overall size is 86 mm× 86 mm Type 86 is an international standard and is the most commonly used switch in most parts of China at present.
1 18 type switch: 1 18 type switch generally refers to a horizontal bar switch. 1 18 switches are generally freely assembled: different functional modules are stuck in the frame. Generally divided into small boxes, medium boxes and large boxes. The long dimensions are 1 18mm, 154mm and 195mm respectively, and the width is generally 74mm.
120 switch: 120 Common modules are based on 1/3, that is, three 1/3 standard modules can be installed on a vertical standard 120mm×74mm panel. The module is divided into 1/3, 2/3, 1 bit by size.
146 switch: it is twice as wide as ordinary switch sockets, such as some four-position switches and ten-hole sockets. The panel size is generally 86mm× 146mm or similar, and the center distance of mounting holes is120.6 mm. ..
At present, 86 and 1 18 switches are the main types of home circuit installation. Both switches have their own advantages, so consumers are advised to buy them at the same time. In the space with more electrical appliances, such as the TV wall in the living room, you can choose the 1 18 switch, so that wired and network sockets can be installed together with other plugs. In the field of single electrical appliances, such as air conditioners and refrigerators. Choose type 86 switch to make electricity more stable and safer.
2. Structure of switch socket
Switches and sockets have different uses. The former is used to control the on-off of the circuit, and the latter is used to connect electrical appliances. But they are very similar in structure, and they are all composed of five parts: panel, switch current-carrying, switch contact, switch socket and base.
Second, the switch socket purchase precautions
1, do not pay attention to appearance, lightweight and safe.
Some switch panel manufacturers attach great importance to the aesthetic planning of goods, and even plan the switch panel into bright color style. The appearance is very fashionable, and it is also very popular with many families, especially young people, but I don't know that there can be endless security risks here. Because of the one-sided emphasis on appearance, most of these switch panels are made of raw materials with poor usability and impact resistance, and there is a risk of damage and cracking leading to leakage if they are not careful.
Don't forget to count the quantity.
Before buying switch sockets, be sure to count the number of switches needed in the whole house. When considering the sockets in the living room and bedroom, make sure that each main wall has a 5-hole socket to meet the needs of daily life. The location of the socket should be determined according to the design of the house. For example, the location of TV background wall can have more sockets, and other locations can be determined as needed.
3, don't ignore the switch socket specifications.
The switch socket will have the rated current allowed to pass, which is generally 6A, 10A, 16A. If the voltage is 220V, the power that the switch socket can bear is 1320w, 2200w and 3520w respectively. For example, electrical appliances such as air conditioners have high power, generally exceeding 2,500 W. Sockets above 16A should be used separately, and switches should be provided to ensure safety.
Three, switch socket installation considerations
1. Pay attention to the installation position of the switch socket.
The position of the switch should be determined according to the living habits of family members. For example, most people are right-handed, so the door of home improvement is generally open to the right, and the switch is installed on the left side of the door. In addition, it is very convenient to use double control switches on the upper and lower floors of stairs, bedroom door and bedside, and on both sides of the larger living room.
2. Pay attention to the installation height of switch socket.
When installing the air conditioner with known height, the switch socket in the living room should be as follows: the socket without special requirements is generally 0.3m from the ground, and the split air conditioner socket is 1.8m from the ground according to the position of the reserved hole of the outlet pipe. In the case of window air conditioning, the ground should be1.4m. If it is a cabinet air conditioner, it should be 0.3m from the ground. Otherwise, separate air conditioning sockets should be reserved.
For the installation height of the kitchen switch socket, please refer to the floor plan of the kitchen console, stove, storage table and vegetable washing table. Set the lampblack machine socket and the electric heating socket in the selected position. The lampblack machine socket is 2.0m from the ground, and the electric socket is 1.4m from the ground, or the height of the refrigerator socket is generally set to 0.3m according to the specific position of the operation console and the hanging cabinet.
When there is an external window at the installation height of the switch socket in the bathroom, an exhaust fan junction box or socket should be reserved beside the external window. Because the exhaust duct is generally near the shower area or bathtub, the junction box or socket should be installed above 2.25 meters from the ground. The electric water heater socket and the power socket of the bidet should be kept 0.6m away from the shower area or the outer edge of the bathtub. Set the power socket for beauty and shaving beside the mirror of the washstand, and install it at a distance of 1.5m ~ 1.6m from the ground.
3. Pay attention to the installation spacing of switch sockets.
If the wall length exceeds 3.6m, the number of sockets should be increased appropriately. The length of the wall is less than 3.6m, and the socket can be placed in the middle of the wall. At least two 5-hole sockets should be set on the wall where TV sockets are set (this wall is where electrical appliances are placed), and one socket should be close to the TV socket and keep a distance of more than 0.5m.
4, pay attention to the waterproof switch socket.
The socket installed in the bathroom should be equipped with a switch and an indicator light. If installed in a wet place, a waterproof cover should be installed on the surface of the socket to prevent water vapor from entering the socket and causing short circuit.