Know all the installation specifications and precautions for switches and sockets
“Although switches and sockets are not very conspicuous in people’s daily lives, they have greatly facilitated our use of electricity. The quality of switches and sockets is not up to standard, and the installation by electricians is not standardized. They are all caused by the switch plug..." Thank you for paying attention to Fuwo. I have carefully selected and shared with you all the articles about the installation specifications and precautions of switches and sockets. The Decoration Learning Channel allows you to understand more professional decoration experience and home feng shui. Knowledge, the content mainly includes: decoration skills, home feng shui and interior design cases.
Although switches and sockets are not very conspicuous in people's daily lives, they have greatly facilitated our electricity consumption. The quality of switches and sockets is not up to standard, and the installation by electricians is not standardized. It is the cause of switch and socket failure. We urgently need to understand the purchase and installation specifications of switch sockets to ensure the safety of family members.
1. Specification of switch sockets
1. Dimensions of switch sockets
Common switches currently on the market include type 86, type 118, type 120 and type 146 type switch. Different types of switches are mainly distinguished by their panel size and design.
Type 86 switch: The appearance of the switch socket is square, with an external size of 86mm×86mm. Type 86 is an international standard and is currently the most commonly used switch in engineering and home decoration in most areas of our country.
Type 118 switch: Type 118 switch generally refers to a long bar switch installed horizontally. The 118-type switch is generally a free combination style: it is composed of different functional modules that are stuck in the frame. Generally divided into small boxes, medium boxes and large boxes, the length dimensions are 118mm, 154mm and 195mm respectively, and the width is generally 74mm.
120 switch: The common module of 120 type is based on 1/3 standard, that is, three 1/3 standard modules can be installed on a vertically mounted standard 120mm×74mm panel. Modules are divided into three types according to size: 1/3, 2/3, and 1 bit.
Type 146 switch: The width is twice that of ordinary switch sockets, such as some four-position switches, ten-hole sockets, etc. The panel size is generally 86mm×146mm or similar size, and the center distance of the mounting holes is 120.6mm.
At present, home circuit installations generally use 86-type and 118-type switches. Both types of switches have their own advantages. It is recommended that consumers purchase them at the same time. In spaces with a lot of electrical appliances, such as the TV wall in the living room, a 118-type switch can be used, so that wired, network and other sockets can be installed together with other plugs. In areas with a single electrical appliance, such as air conditioners, refrigerators, etc., choose 86-type switches to make using electricity more stable and safer.
2. The structure of switch sockets
Switches and sockets have different uses. The former is used to control the on and off of circuits, while the latter is used to connect electrical appliances, but the structure of the two Very similar, they are composed of five parts, namely: panel, switch current carrier, switch contact, switch nozzle and base.
2. Precautions when purchasing switches and sockets
1. Don’t focus on appearance over safety
Some switch panel manufacturers place great emphasis on the beautiful appearance of their products. , and even design the switch panel into a transparent style. The appearance is very fashionable, and it is also very popular with many families, especially young people, but they do not know that there may be endless safety risks. Due to the one-sided emphasis on appearance, most of these switch panels are made of materials with poor durability and impact resistance. If you are not careful, they may be damaged and cracked, causing the risk of leakage.
2. Don’t forget to count the quantity
Before purchasing switches and sockets, be sure to count the number of switches needed for the entire house. When considering sockets in spaces such as living rooms and bedrooms, you should ensure that each main wall has a 5-hole socket to meet daily needs. The location of the sockets should be determined according to the design of the house. For example, there can be more sockets at the TV background wall, and the sockets at other positions are determined according to needs.
3. Don’t ignore the specifications of switch sockets
Switch sockets will have rated currents that are allowed to pass through, usually 6A, 10A, and 16A. If calculated based on the voltage of 220V, the power that the switch socket can withstand is 1320w, 2200w, and 3520w respectively. If the power of electrical appliances is high, such as air conditioners, etc., the power generally exceeds 2500w, a separate socket of more than 16A must be used, and it must be equipped with a switch to ensure safety.
3. Precautions for installing switches and sockets
1. Pay attention to the installation position of switches and sockets
The position of the switch should be determined according to the living habits of the family. For example, most People are right-handed, so generally the door opens to the right, and the switch is installed on the left side of the door. In addition, it is very convenient to use dual control switches on the upper and lower floors of the stairs, the bedroom door and bedside, and both sides of the larger living room.
2. Pay attention to the installation height of switches and sockets
The installation height of switches and sockets in the living room should be such that when the type of air conditioner used is known, the air-conditioning sockets should be arranged in the following positions: sockets with no special requirements , generally 0.3m from the ground. The split air conditioner socket should be 1.8m away from the ground according to the reserved hole position for the outlet pipe. If it is a window air conditioner, it should be installed 1.4m away from the ground next to the window. If it is a cabinet air conditioner, it should be placed 0.3m away from the ground at the corresponding position. setting, otherwise consider reserving the air conditioning socket as a split air conditioner.
For the installation height of kitchen switches and sockets, please refer to the layout of the kitchen worktop, stove, storage table, and dishwashing table to select the location to set the range hood socket and electric heating socket. The socket of the range hood is set 2.0m from the ground, the electric heating socket is set 1.4m from the ground or according to the specific location of the console and wall cabinet, and the height of the refrigerator socket is generally set to 0.3m from the ground.
When there is an external window when the bathroom switch socket is installed at a height, an exhaust fan junction box or socket should be reserved next to the external window. Since the exhaust duct is usually near the shower area or bathtub, the junction box or socket It should be installed at least 2.25m above the ground. Reserve an electric water heater socket and a power socket for a bidet 0.6m away from the outer edge of the shower area or bathtub. Set up power sockets for beauty and shaving next to the washstand mirror, and install them 1.5m to 1.6m above the ground.
3. Pay attention to the installation spacing of switches and sockets.
If the wall length exceeds 3.6m, the number of sockets should be increased appropriately. The wall length is less than 3.6m, and the socket can be placed in the middle of the wall. The wall where the TV outlet is installed (this wall is where electrical appliances are concentrated) should be equipped with at least two 5-hole sockets, one of which should be close to the TV outlet and kept at least 0.5m away from it.
4. Pay attention to the waterproof and moisture-proof switch sockets
The socket installed in the bathroom should be equipped with a switch and indicator light. If the socket is installed in a humid location, install a waterproof cover on the surface of the socket. Avoid water vapor entering the socket and causing a short circuit.