What are the requirements of indoor wire installation code?

Specification requirements for hydropower installation:

First, the provisions of the line:

1. All construction site lines meet the contract requirements (generally, Far East brand BV and BVR lines are used).

2. 1.5_2 for general lighting, 2.5_2 for general sockets, and 4_2 for kitchen sockets, special lines, electric water heaters, air conditioners and yuba. And 1.5_ are used for the ground wire.

3. When the supervisor enters the line, he can only choose red, blue, double color, green or yellow, and other colors are not allowed. Fire wire is red, neutral wire is blue, ground wire is bicolor, control line can only be green or yellow, and double control line is yellow or bicolor. The control line must control the phase line.

4. All TV, telephone, computer and audio wiring must be dedicated lines, and wiring or mixed wires are not allowed in the middle. Television uses double-screen cable, telephone uses four-core cable, computer uses eight-core cable, and TV generally considers installing digital cable.

Second, the wiring regulations:

A: 1. Each floor of the villa and the compound lighting are an independent loop; For example, in a single-story suite, lighting is two independent circuits, and the distribution of the circuits depends on the actual situation. Bathroom lighting shall not be connected with Yuba or electric water heater (except for the lighting configured by Yuba itself).

2. Ordinary sockets, kitchen sockets, special lines, electric water heaters, air conditioners and yuba are all independent circuits. (Unless specifically requested by the owner, this scheme is usually adopted. )

B: The lighting and sockets in the dining room, living room and balcony are one dedicated line, and the lighting and sockets in each room, kitchen and bathroom are independent dedicated lines. The grounding wire and neutral wire between dedicated lines cannot be borrowed from each other (this scheme can be adopted if required or agreed by the owner).

Three, installation methods and regulations:

1, the construction site, plumbers must first approach positioning. The supervisor and plumber are required to talk to the owner in Mandarin, and the supervisor must carefully make written records, including the location and quantity of sockets, switches, weak current and air conditioners in each room, and the location and quantity of ceiling lamps are according to the drawings, without making written records; All kinds of sanitary ware, electrical appliances and articles in the kitchen, bathroom and balcony should be recorded clearly in detail, including model, specification, size, pattern, installation location and requirements, and must be confirmed in writing. When positioning, the plumber must carefully mark the corresponding position, indicating the height and quantity. If you encounter unknown or unreasonable problems, you must put forward or explain them in time. If you encounter unexpected things, you must remind them in person. Never install unnecessary potential. Try to think of the owner, be reasonable, considerate and practical.

2, plumbers play the horizontal line first, and then according to the height of the horizontal line. The height difference of switches in the same row is not greater than 1_, the height difference of switches in the same room is not greater than 5_, the distance between strong and weak current is greater than 50_, and the distance between wires and gas pipes is greater than 30_. The spacing between hot and cold water pipes should be 20_, the height of shower inlet is about 1 10_, the outlet is about 175_, and the height of the top of squat toilet tank is about 75_, which is below the waist line. The mirror on the washbasin is about 25_ higher than the countertop, the bottom height of the gas water heater is about 150_, and the outlet of the vegetable basin and washbasin is about 45-55. It is recommended that all internal tooth elbows and water outlets use tiles 2-5_, not tiles.

3. The installation height of the socket depends on the actual needs, generally 30_, the height of the lower edge of the switch box is about 1300_, and the switch socket on the bedside table is generally not less than 70_, depending on the selected big bed. The switch spacing on both sides of the big bed is 40_ wider than the bed, and the sockets on the TV cabinet are 25_ higher than the TV cabinet, but the wall-hung TV requires the sockets to be under the TV cabinet and behind the TV. The height of the socket on the kitchen countertop is 105_.

4, plumber cloth tube, should be broken first. Ditching should be horizontal and vertical, and the depth should be appropriate. Pipeline laying should be laid with water pipes at the bottom and line pipes at the top. Bridges or elbows should be used. Pipeline layout should be horizontal and vertical, neat and beautiful, and staggered is not allowed. The pipes are fixed with pipe clamps, and the joints are connected with glue and water, and the arrangement order is reasonable. Before sealing the oil tank, the oil tank should be fully soaked with water and then sealed. Put more sand and ground in the cement for sealing cans, which should be flush with the wall surface and not higher than the wall surface.

5, different circuits can't * * the same root canal; Pay-off in the pipe shall not exceed 2/3 of the pipe diameter, that is, no more than 6 20_ pipes and no more than 4 16_ pipes; The connection between pipelines should be straight-through, the branch line should be hexagonal box, and the tee joint should not be used as far as possible. Wiring in the pipe should be based on twitching principle, and wax pipes should be used as little as possible. There shall be no joints or bare wires in the middle of the line, old wires and pipes shall not be used, and no wires shall be borrowed in the middle.

6. The electric box and bottom box must be locked. The height of the electric box is about 150_, and it should be installed in a hidden and convenient place. Leakage switch and air switch should be installed in the box, and the line name controlled by each air switch should be marked.

7. Necessary tools for plumber installation: light percussion drill, hole opener, spirit level, tool kit and other necessary tools.

8, panel installation should conform to the left and right phase, three plugs for the ground, left for the right phase; . The order of a row of switch control lights should be reasonable and orderly, and the installation of lamps should be based on the principle of firmness, rationality and beauty. Large and heavy lamps must be installed with expansion bolts. Rows of lamps and lanterns to meet Cheng Yi straight line, the center deviation should not be greater than 5_, after installation should be simple protection. Bathroom and balcony sockets should be covered with waterproof sleeves.

9, when installing lamps and lanterns, shall not be arbitrarily in smallpox, furniture, walls and other places for unnecessary opening, slotting; If it is really necessary, you should first explain it to the supervisor and get the consent. In case of repair or rework caused by unauthorized drilling, in addition to compensation for losses, each hole will be deducted 100 yuan.

10, water installation, faucet water should comply with the principle of left hot right cold. When installing sanitary ware, the slope should be about 2%-3%, and the pendant should be horizontal and vertical. It is not allowed to operate directly on pendants and sanitary wares with wrenches and pliers. Installed sanitary ware and articles shall not be trampled, put on hold or used as seats. It should be protected in time and prohibited from use.

1 1. If the goods are damaged during installation, the fault shall be compensated; If it is damaged because it is not installed, the supervisor shall negotiate with the owner. If negotiation fails, the supervisor shall be responsible.