Problems with home circuit installation? How to install a home circuit

For safety, the materials are selected as follows:

1) leakage switch and air switch choose Delixi; (DZ47-series) 2) wire selection Huaguang, 4 square wire selection BVR;

3) Sockets and switches choose your pie's;

4) Air conditioning socket selection 16 amp and above special socket;

5) The grounding wire (that is, the protection wire PE) is selected as yellow and green two-color wire, the live wire is selected as yellow or red, and the neutral wire is selected as black;

6) The grounding electrode should be connected with the main grounding of the staircase for metallic connection, and the distribution box should be connected at the same time;

7) The special line for the bath should be equipped with an independent leakage switch, and the leakage current should not be greater than 30mA;

8) PVC pipe selection 25mm, the whole construction process does not need to add elbows, there is a bend when using a bender, in order to replace the wire in the future;

9) When the wire is lapped, it should be tied with a tie wire and the requirements are more than 25 times, and the socket end wire should be reserved at the socket first, and the wire should be reserved for the socket after the main line is lapped;

10) In the safety process, the distance between the wire position and the plumbing pipe should be kept in meters;

The air conditioner has 4 flat copper cords, lights. Sockets are each with a flat copper wire. It is best to put a separate line for each air conditioner.

The air opening is also controlled separately. Lights, bedrooms. The living room, miscellaneous room, and study room should be opened with an empty one.

Socket line bedroom. The living room, miscellaneous room, and study room should be opened with an empty one. Toilet + bathroom one empty.

Kitchen with an empty opening. The one above says that there are 6-10 square meters of copper wire, then you are amazing, you calculate the electricity consumption of each family!

Generally, the lighting and sockets in the living room, kitchen, bedroom and toilet are each equipped with a separate circuit leakage protection switch. Lighting can be done with 1 square plastic copper wire. Kitchen, bedroom, bathroom, if there are large power electrical appliances, you can use 6-10 square meters of plastic copper wire.

Under normal circumstances, 4 flat plastic copper wire is fine.

Tell me your price, I'm in design.

1) It is best to have no connector in the middle of the home wiring. When there must be a joint, it should be firmly touched and wound with insulating tape, or a porcelain junction box should be used, and it is forbidden to use medical tape instead of electrical tape to wrap the joint. (2) The installation of air-conditioning sockets should be more than 2 meters above the ground, and in general, the installation of air-conditioning sockets should be more than 2 meters above the ground, and in general, the installation of air-conditioning sockets should be more than 2 meters above the ground; (3) Although the grounding or neutral wire is not charged normally, if there is leakage after the wire is broken, the electrical shell will be electrified.

For the sake of safety, the specification of the grounding (zero) wire should not be less than the phase wire, and no switch or fuse should be installed on it, and there should be no joint. (4) All switches, switches, and fuses must have covers. Bakelite covers must be replaced if they are aged and incomplete.

Those who are dirty and damp must stop wiping it clean before using it. (5) Do not drag and drop the power cord on the ground to prevent the electric macro from tripping over the base source line and prevent damage to the insulation layer.

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How to install the family circuit is as follows: 1. Circuit installation 1, it is forbidden to lay wires without any protection directly in the wall, in the floor, under the floor or on the ceiling.

2. Before the installation of hydropower, there must be electrical (strong current, weak electricity), water supply and drainage design and construction drawings. 3. Lines with different voltages, different circuits, and different signals are strictly forbidden to wear in the same conduit. 4. Remember not to connect the wire in the conduit, that is, if the length of the wire is not enough to be wired, the joint of the wire cannot be in the conduit, and it should generally be wired in the junction box such as switches, sockets, and lamp head boxes.

5. The installation of lamps and lanterns should be completed after the paint construction, and the switchgear should be installed on the phase line, otherwise after the switch is off, the lights will still be charged and the electrical equipment will be electrified, which is easy to cause electric shock. If the luminaire uses a screw head, the center reed tongue of the screw head should be connected to the control phase. 6. The power system should take appropriate protective measures, grounding protection and zero protection, generally take grounding protection, and it is strictly forbidden to use two protection measures at the same time.

7. The interface of the line should be smooth, the connecting plate should be firm, and it is strictly forbidden to block the wire to block the conduit. 2. Waterway installation 1, the hot water faucet in the cold and hot water faucet should be installed on the left side. The electric water heater should have a grounding protection device, which can remove the air in the bile when it is first used, and it can be energized after being filled with water.

2. The horizontal pipe of the drainage pipe should have a certain slope, and the socket connection should be tight to ensure that there is no leakage. Fixed pipe brackets, elevator spacing reasonable, firm. 3. The installation of the waterway must be firm and accurate, and the installation position of toilet appliances must also be accurate and firm.

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Do you have any other questions?

The 1P+N air switch and the air switch with leakage protection function can only play a breaking role in the nuclear laughter live wire, the zero line is straight, that is to say, we pull down its gate, the live wire is disconnected and the zero line is still connected, this switch is developed to adapt to the distribution box without a common zero row; Therefore, if the 1P+N air switch is used as the main switch at home, then we will cut off the power during maintenance, only disconnect the live wire, and the neutral line is not disconnected; If it is possible to make the neutral line live due to a line fault, then it is very dangerous; In addition, when the 1P+N air switch is wired, the live wire and the neutral line have strict requirements, if the wiring is not in accordance with the requirements, then the switch will not be able to break the ** line, which is easy to cause electric shock; The most commonly used part of the 1P+N air switch in the home is the switch of the lighting circuit, and the maintenance of the lighting circuit at home generally does not need to be broken.

The 2P air switch and the air switch with leakage protection function can be segmented at the same time, which means that when we pull down the brake, the live wire and the neutral line are disconnected at the same time.

Recommended household electricity distribution scheme:

1.The main switch uses a 2P air switch (without leakage protection function), which can realize the complete disconnection of the live wire and the neutral line, and the selection of the sub-switch is a 2P leakage protector respectively, at least a 1P leakage protector should be selected; This scheme is the most reasonable, which is convenient for future maintenance and can achieve the most effective protection for the line; (The cost of this solution is higher).

2.The main switch uses the air switch with leakage protection function of 2P, and the sub-switch all adopts the air switch of 2P or 1P (without leakage protection function), this scheme is easy to cause the main switch to trip often but it is difficult to find the line fault, whether it is from the perspective of maintenance or safety, it is far inferior to the first scheme. (The program is economical).

3.The air switch with leakage protection function is selected for the main opening, and the 2P air switch with leakage protection function is selected for the lighting circuit (the incoming line of the lighting circuit is connected to the inlet line of the main switch to prevent the main switch from tripping and the lighting line is powered off by other circuit failures), and the other circuits are opened with 2P or 1P air (without leakage protection function). This solution is economical and practical.

<>1. Generally used for sockets, single-core square wires, single-core wires with more than 3 horsepower air conditioners with 4 square wires, single-core wires with 6 square wires for total incoming wires, and two-color wires for grounding wires.

2. Three rolls of different colors are used for a group of three rolls (with zero wire, live wire, ground wire) for lighting of lamps and lanterns, and two rolls of different colors are used as a group (for neutral wire and live wire).

3. The two-core and three-core sheath lines are used as open wires, which are mostly used for construction on the construction site, and are not used for home decoration.

4. The thicker the audio cable, the better, and it is recommended to choose 2* or 2* specifications.

5. The more the TV distributor is divided, the worse the TV signal is, and it is recommended to use 6 or less as much as possible.

6. L represents the phase line (commonly known as the live line), and N represents the neutral line (commonly known as the zero line). According to the regulations, red, yellow and green wires are used for phase wires, and blue wires are used for neutral wires. With the socket facing you, the jack on the right side is the phase wire (live wire) and the jack on the left side is the neutral wire.

The uppermost end of the three-hole socket is the electrical appliance open protection grounding wire (commonly known as the ground wire, which is marked with yellow and green colors).

7. The circuit installation regulations for interior decoration are: left zero right fire in the middle (on the socket), (facing yourself, the plug is opposite), the letter is indicated by the L --- live wire, N --- zero line, grounding symbol, with color to indicate that it is the red --- live wire, blue --- zero line, yellow and green two-color wire--- grounding.

8. The power cord connector is divided into "ten" connection, "-word", "D" connection and so on. The joints should be tightly wound and smooth without thorns. **Before the head is disconnected, it should be lightly pressed with wire cutters, and then wound to the mouth, and then swing left and right, and the thread will be disconnected at the joint very obediently.

9. When connecting two end wires, first strip the end edge of the wire head, wipe the wire core clean, then twist and weld the wire end, and finally use the end of the edge cloth package 2 3 layers, which can prevent the increase of resistance and ensure that the end edge strength of the joint is good. When wires are connected to switches, fuses and other equipment, special joints must be welded to the wire ends. When a single strand or a multi-strand wire with a small cross-section (such as less than a square millimeter) is connected to the terminal of the electrical equipment, the wire cut to the end can be bent into a small ring sleeve without a special joint, placed on the terminal of the equipment, and a copper washer is added and tightened with a nut.

The direction of the ring sleeve should be consistent with the tightening direction of the screw or nut, so as not to loosen the wire end when tightening the screw or nut.

10. In order to prevent the wires from coming into contact with combustibles and reduce the way of the wires, the wires should wear non-combustible pipes. The matching of the selected electrical appliances can not exceed the matching of the wires, otherwise it will cause premature aging of the wires and easy fire. In addition, in the process of extinguishing the wire**, attention should be paid to extinguishing the fire after the power is cut off, and it is strictly forbidden to extinguish the fire with water when the power is charged.

11. When installing wires, you must have basic wire knowledge, figure out which ones are live wires, which ones are zero wires, etc., and do not know the wires in your hands and can be installed according to guesses, which is easy to cause danger. Although it is a blind wire in the family, it is not so complicated, but it is necessary to take safety measures in advance during installation, and if you are not careful, you must first cut off the power and then extinguish the fire to avoid the occurrence of the second disaster.

Hello, I'm an electrician! You're talking about your home renovation and then you have to power the house, right? If so, let me start with what you're going to buy.

The switch is very old, and now it's basically unused, I don't know if you're in the city or in a country house, but I suggest you use something better! You write down what you want to buy, pz30-16 circuit box, this is a box with a switch, not fixed on the wall like a gate knife is ugly to death, this ** is about dozens of dollars. And then there's the switch.

From the line from the electric energy meter to the switch, it is the main switch, you buy a 2P-63A, because you say that you are home decoration, so your home will not be like the above drawing, your home only uses two sockets, so you have to buy a few sub-switches. The main switch controls all sub-switches, which control the socket and the lamp respectively. For example, all the sockets in the kitchen and living room, you only use one switch to control, if one day this switch trips, then you have to find the fault, whether it is the kitchen leakage or the living room switch leakage, it is very troublesome to find the line.

Therefore, it is recommended that you control a place with a switch, for example, the first switch controls the bedroom, the second one controls the living room, and the third one controls the kitchen. So you have to buy three sub-switches, remember that this is a switch used in the socket, called the leakage protector, the model is 2P-16A, because the socket will trip once the leakage switch, and the leakage switch is used to prevent leakage to people. As for the light bulbs, it doesn't matter, you just buy two DZ47-16A switches, not the leaky kind.

The two wires at the intersection point, the line that says 220V, you pay attention, if it is electrified, you can pull the wire, but do not touch the copper wire with your fingers, pinch the wire, and the copper wire of the two wires should not touch, it will ignite if it touches. Be careful.

This is very correct, and I strongly tell you a point, don't be afraid of costing money, and the specifications will be large, because you can't figure out how many appliances you will use in the future! It is troublesome to change the line, especially the dark line.

What type of renovation are you... If it is a commercial house, the lighting and socket are generally separated, and you only use one electric power, which is only suitable for the surface renovation of the old house. The main line is four square, and the lamp head and switch can be squared.

Sockets with square wires. Where did the ground wire shown on your diagram come from? The ground wire should come in with the incoming line.

The general five-hole switch has a terminal with a grounding wire, and it can be used without connection, only using fire zero.

What material you use depends on how you pack it. Light or dark.

Generally, the head of the house is like this, and it can be dressed like this.

If you have a lot of high-power electrical appliances at home, the commonly used "2x4mm copper core wire" can withstand about 8 kilowatts, and the "copper core wire" can withstand about 5 kilowatts. The light line can be distributed, the socket is slightly thicker, and the uniform specifications of the incoming wire are convenient for buying materials.

The intersection point is also the wiring point, disconnect the wiring and tighten it, and wrap it up with "electrical tape". Hardware stores also sell "wiring caps", two threads can be screwed together with hats, and you can buy the wiring caps with the corresponding wire thickness specifications.

The premise of direct wire stripping is that you cut off the electricity, and it is best to try to operate a non-professional electrician with electricity, if there are many wire heads, buy a "wire stripper", you have to be skillful, "diagonal pliers", "electrician knife" is also very good to strip the wire.

There are also common tools for wiring needle-nose pliers, small screwdrivers.