1, the socket location should be correct.
Surface-mounted sockets should not be less than 1.8m from the ground (such sockets are installed in old rural houses); The concealed socket should not be less than 30 cm from the ground. The concealed socket panel should be close to the wall, with no gaps around, firm installation, smooth and clean surface, no chipping and scratches, and complete decorative caps; Safety sockets (sockets with safety boards) should be used in children's activity places, or the installation height should be no less than 1, 8m. The socket of kitchen and bathroom should be more than 1.5 meters from the ground, and the socket of air conditioner should be at least 2 meters. The height of sockets installed in the same place should be consistent.
2, socket wiring should not be casual.
Install a single-phase two-hole socket, which is opposite to the right hole or the upper hole of the socket, and the left hole or the lower hole is connected to the zero line; Single-phase three hole socket, the right hole facing the socket is connected with the phase line, and the left hole is connected with the zero line; The upper part and the middle part should be connected by protective ground wire (PE). PE wires shall not be connected in series between sockets, but shall be connected to the ground wire separately. Three hole socket's zero line and protective ground wire can't be connected wrong.
3. The number of sockets should be enough.
As for the number of sockets, it is generally required that the distance between two socket points should not exceed 3.66 meters, that is, if a household appliance can't connect the socket from the left, it can definitely connect the socket from the right, and the number of sockets in the bedroom, living room and kitchen should not be less than 4, 7 and 4 respectively.
4, eye socket protection grounding socket to be reliable.
The grounding of the three-eye socket is the weakest link in the safe use of electricity in rural households, and most households are not grounded at all. Even the connection places are not standardized. For example, if you find a wire as the grounding wire and the grounding body is fixed on the wall with nails, the grounding will be considered as a connection. Other users only need to disconnect the connector of the three-eye plug and use the two-eye socket instead of the three-eye socket. When using a household appliance with a three-pin plug, the three-pin socket cannot protect the grounded user. Once the metal shell of household appliances is charged, people who come into contact with household appliances are in danger of getting an electric shock. In order to ensure the safety of farmers using household appliances, farmers and rural power workers should pay enough attention to the protection and grounding of farmers' three-eye sockets.
5. Install a sealed socket in a damp place.
Ordinary sockets should not be installed in damp places at home, such as kitchens and bathrooms, to prevent corrosion or leakage.
6. The sockets of high-power electrical appliances are directly connected from the household distribution box.
High-power electrical appliances (air conditioners, microwave ovens, induction cookers, washing machines, refrigerators, etc. ) has a rated current of not less than 10A. It is best to lead the connecting wire from the incoming distribution box, and the cross-sectional area of the aluminum core is not less than 2.5 square millimeters; The cross-sectional area of copper conductor is not less than1.5 mm. Multi-purpose socket can be used for some frequently moving appliances, but it should be used with caution. Don't turn on multiple appliances at the same time. Ensure safe use.
7, socket circuit must add leakage protection.
The appliances connected to household sockets are basically mobile appliances (vacuum cleaners, floor or desktop fans and various small household appliances) or fixed appliances (refrigerators, microwave ovens, electric showers, washing machines, etc.). ) the kind that can be touched at any time. When the wires of these appliances are damaged (especially the wires of mobile appliances) or the charged shell of the appliances can be touched by human hands, there is a danger of electric shock. In addition to the wall-mounted air conditioning power socket, other power sockets should be equipped with leakage protectors. Leakage protector is a protective appliance to prevent leakage or electric shock. When the leakage current of electrical appliances and wires behind the leakage protector exceeds the rated value (the action current of household leakage protector is less than 30 mA, and the action time is less than 0. 1 sec), the device trips and the power supply is cut off. It is often used in combination with protective grounding or protective grounding to form double insurance against electric shock.
8. The conductor of the socket should be copper conductor.
Aluminum conductor is widely used in rural families. Although using aluminum conductor indoors saves a little money, the harm is enormous. According to the statistics of Consumer Product Safety Committee (CPCS), the fire rate is 55 times that of copper wire. 1The national mandatory standard "Code for Lighting Design", which was implemented in June, 1999, clearly requires that the lighting circuit room adopt copper wires. Therefore, the lead wire of indoor socket must choose copper wire.
9. There should be obvious differences between sockets with different voltages. Not interoperable