Weak electricity wiring construction specifications and processes (applicable to strong and weak electricity transformation) I. General requirements 1. This chapter is applicable to the indoor strong and weak electric circuit wiring and installation of electric appliances and lamps after the single-phase residential household distribution box. 2. After the power distribution box and the household meter, the power supply shall be separately provided according to the different power of the indoor power equipment; the high-power household appliances shall be independently wired and installed. 3, wiring, the color of the phase line and the zero line should be different; the same residential line (L) color should be uniform, the neutral line (N) should use blue, protection line (PE) must use yellow and green color line. 4, between the lead and the resistance between the wire and ground must be greater than 0.5M Ω. 5. Each weak electronic system uses a star structure. 6. Two or three incoming threading pipes are introduced into the home information access box from the outdoors. Outlet threading pipe from home information box to each indoor information outlet. The laid pipe (threaded pipe) shall be made of steel pipe or flame-retardant rigid PVC pipe (rigid PVC pipe). 7. The utilization of the diameter of the straight pipe should be 50%~60%, and the utilization of the diameter of the elbow should be 40%~50%. 8. If there is a local interference source on the route and the minimum net distance requirement cannot be met, the steel pipe shall be used. 9. If the length of the straight pipe is longer than 30 meters, a wire box shall be installed in the middle. 10, when the dark pipe must be bent and laid, the route length should be ≤ 15 meters, and there should be no S bend in this section. When continuously bending more than 2 times, a cable box should be installed. All bends are completed with a pipe bender, which is the standard turning radius. The three links and four links that are prohibited by the state shall not be used. 11. The bending radius of the pipe should not be less than 6 to 10 times the outside diameter of the pipe. 12, in the dark pipe hole must not have a variety of cable connectors. 13. When the power cord is wired, the cross-sectional area of ​​the conductor used should meet the maximum output power of the electrical equipment. 14. The parallel distance between electric wires and heating, hot water and gas pipes should not be less than 300mm, and the distance between them should not be less than 100mm. 15. The joints that lead into the pipe wires shall be located in the junction box. The joints shall be firmly connected. The tin shall be covered with insulating tape and shall be uniformly and tightly wrapped. 16, the cassette should be installed screw to protect the circuit. Second, the main material quality requirements 1. The specifications and models of electric appliances and electric materials shall meet the design requirements and relevant provisions of the current national electric product standards. 1 Power cord: According to the national standard, the standard 1.5 square millimeter wire for single branch and switch wires, and the standard 2.5 square millimeter wire for main wires; 4 mm square wire for air conditioning outlets; 2 Background Music Line: Standard 2 × 0.3 mm 2 Line 3 surround sound cable: standard 100-300 core oxygen-free copper 4 video cable: standard AV video sharing line 5 network cable: UTP UTP twisted pair 6 Cable TV Line: Broadband Coaxial Cable 2. The packaging of electrical appliances and electric materials should be in good condition, the appearance of materials should not be damaged, and accessories and spare parts should be complete. 3, plastic wire protection tube and junction box, all kinds of information panels must be flame-retardant products, the appearance should not be damaged and deformed. 4. The appearance of the metal wire protection tube and terminal box should not be folded and cracked. There should be no burrs in the tube, and the tube mouth should be flat. 5. The terminal box, junction box and switch and socket of the distribution system used in the communication system are selected to match the equipment. Third, the construction points: 1, according to the location of electrical equipment, determine the direction of the pipeline, elevation and switch, socket location. 1 The distance between the power sockets should not exceed 3m, not more than 1.5m from the doorway and 30cm from the ground. (International Standard) 2 All sockets are 30cm away from the ground. 3 The switch is installed at a distance of 1.2~1.4m from the ground and 0.15~0.2m away from the door frame. 2. When the power cord is wired, the cross-sectional area of ​​the conductor used should meet the maximum output power of the electrical equipment. 3, The length of the cassette terminal is 30 centimeters long. All lines should be labeled and indicate the type, specification, date and person responsible for the project. 4. The connection between the threading tube and the film box, the film box must not be cut, the original tube hole must be opened, and the threading tube must be pierced. The threading tube remains 5 mm in the cassette. 5, the dark line laying must be piped. 6. The same loop wire should penetrate the same pipe, but the total number of pipes should not exceed four. 7. The power line and communication line must not penetrate the same pipe. 8. The horizontal distance between power cords and sockets and TV lines, network cables, audio and video cables and sockets should not be less than 500mm. 9. The joints that penetrate the pipe wires should be located in the junction box. The joints should be firmly connected and the insulation tape should be uniformly wrapped. 10. When connecting the switch and screw fixture wire, the phase wire should be connected to the switch first. The phase wire led by the switch should be connected to the terminal in the lamp center. The neutral wire should be connected to the screwed terminal. 11. Splashproof sockets shall be installed in the kitchen and bathroom. Switches shall be installed on the wall on the open side of the door. 12. The line pipe shall be directly laid on the ground. If there are special circumstances that need to be taken around the wall or the roof, the non-standard construction must be indicated on the agreement in advance or the “Customer Accreditation Form†should be completed before construction. Family weak connection diagram Construction details: First, determine the point 1, the basis for the determination of points: According to the family wiring design drawings, combined with the schematic diagram of the point on the wall, with a pencil, ruler or ink fountain will be marked at the location of the cassette position. 2, the cassette height determination: In addition to special requirements, the height of the cassette is consistent with the original strong electric socket, the height of the background music tuning switch should be consistent with the height of the original strong electric switch. If there is more than one cassette Together, the distance between the cassettes is at least 10mm. Second, slotting 1, determine the slot route: According to the following principles: 1 The principle of the shortest route; 2 Do not destroy the original principle of strong electricity; 3 Do not break the waterproof principle. 2, determine the slot width: According to the number of signal lines to determine the number of PVC pipe, and then determine the width of the slot. 3. Determine the groove depth: If a 16mm PVC tube is selected, the groove depth is 20mm; if a 20mm PVC tube is selected, the groove depth is 25mm. 4, appearance requirements of the trough: horizontal and vertical, uniform size. 5, the measurement of trunking: cassette, slot independent calculation, all slots from the beginning of the slot to the end of the slot measurement, the slot width if more than two tubes, the length should be calculated more than twice. Third, the wiring 1, to determine the smoothness of the cable: 1 Test of network cables and telephone lines: Make crystal heads respectively, and use a network tester to test continuity; 2 Test of cable TV lines, audio and video cables, and audio cables: test and disconnect each other with a multimeter; 3 other cables: use appropriate professional instrument test continuity. 2, to determine the line length of each point: 1 Measure the length of the wiring box slot to each point end; 2 Add the length of redundant lines at each point and at the wiring box slot: The length of the outlet line at each point is 200mm - 300mm. 3, to determine the label: the various types of cables cut to a certain length after the two ends of the line labeled, and indicate: weak type - room - serial number. 4, to determine the number of pipe lines: the cross-sectional area of ​​the pipe line shall not exceed 80% of the pipe cross-sectional area. Family weak connection diagram Fourth, sealing slot 1. Fixed cassette: In addition to the kitchen and bathroom cassettes protruding from the wall 20mm, other cassettes are required to be flush with the wall surface. Several cassettes are required to be on the same level. 2, fixed PVC pipe: 1 Ground PVC pipe requires that every one meter must be fixed; Two-slot PVC pipe requires that every two meters must be fixed; 3 Wall grooved PVC pipes must be fixed at intervals of one meter. 3. Sealing groove: The wall surface and ground surface after sealing the groove shall not be higher than the plane. 4. Clean the construction site: After the sealing tank is closed, remove the garbage and clean the construction site. Attachment: In order to avoid the bending circuit of various lines, ensure that all the lines are "live lines", and the wiring construction process is the direct laying of the ground (the baseboard or ceiling cannot be walked without special circumstances. Inside, otherwise the line cannot be made "live line"). The weak home design, the realization of the initial stage of the digital home The weak home wiring in the digital home design is no stranger to many young people, but how to make their future dwellings or luxury homes become smart modern and convenient smart home? Most of the friends are very interested in high-definition video, wireless Internet, etc. This is the initial stage of our dream of realizing the digital home. However, we must not underestimate the weak wiring in home design. In fact, as a covert home improvement project, but also the connection nerve of our smart home, the design of weak electrical wiring is very important, this is the first step to achieve digital home. If you want to add any new requirements after the renovation is over, you can only go down the line. Of course, you may use wireless technology to achieve this. However, there are many problems that cannot be solved by wireless connection at present, so we have some knowledge of weak wiring. It definitely benefits a lot. The weak electrical wiring system we described is the fourth essential home infrastructure after water, electricity and gas. This is a basic job for the construction of a digital home and it is very important. The object of weak current processing is information, that is, information transmission and control. Its characteristics are low voltage, low current, low power and high frequency. The main consideration is the effect of information transmission, such as the fidelity, speed, and breadth of information transmission. ,reliability. In general, weak electricity mainly includes telephone lines, network cables, cable television lines, audio cables, video cables, audio cables, and so on. Weak electricity is almost the same as strong electricity, and PVC pipe is also required. It is better that the cross section of the wire does not exceed 40% of the PVC pipe section. Re-emphasize that you must not wear too much, and strong and weak electricity must not be worn in the same pipe. And to separate as much as possible, the distance between strong and weak electricity is at least 20 cm, otherwise there will be interference. Weak electrical wiring to achieve the function As the basis for the establishment of digital homes, the wiring is to facilitate our application in the future. In general, interconnection and interconnection are the basic requirements. The specific aspects are as follows: About several aspects of home wiring 1, TV: This all understand. TV is a universal way of home entertainment and leisure. The elderly and children in the family have different preferences. They have their own fixed viewing channels and “exclusive columnsâ€. There are TVs in each room and there will be no remote control. Phenomenon. 2, Tel: Maybe you would say that there is no cordless telephone? You can use it at that time, but in reality no one will put a beautiful cordless telephone in the kitchen and bathroom. What was previously full of shouting and flying to answer the phone will not happen again, and your freedom of conversation will be kept confidential. Each room can also talk to each other. 3, broadband network: INTERNET, this time-honored vocabulary is also being integrated into our lives. Sitting at home through the Internet you can easily work online, online entertainment, online shopping, truly enjoy the convenience and ease of staying at home. Nowadays many cities in China have already opened broadband IP metropolitan area networks one after another, and the concept of “broadband information community†has gradually become the choice of the current family. We can provide not only broadband to home, but also broadband to table, broadband to bed, to any place you need! Make your internet life better! 4, home theater: There are many friends in the decoration ignore the line pre-applied, after the completion of the renovation only to find the two rear can not be resolved, the Lammin line is not good to see security, demolished re-do it, time and money does not say, there may be damaged decoration overall effect. Therefore, before the renovation, friends who like music do not forget the wiring system of this system. 5, video sharing with infrared control. Many of my friends think that watching movies goes to the living room and it's so troublesome. In the room, you have to go to the DVD to control it. Simple things become complicated. Now that you have advanced infrared learning remote control equipment, you don't need to get up and you can easily control the outside equipment in your own room. 6, headphone access: You can listen to your favorite program (music) at night and it will not affect others' rest. Why not? 7, background music: After a tiring day at home, you will be free to relax your mood, listen to music, feel the peace and warmth of your home, and the pressure of work will fade. Background music design According to your needs, in any room including the kitchen, bathroom, study, balcony, you can put music points on it and send high-fidelity music to each room through one or more audio sources according to your own. The need to independently control the volume of each room. How much do you need? Planning interface We should consider the need for some time in the future when designing the wiring. For example, in addition to setting information points beside the computer desk and sofa, do you need to arrange information points in the kitchen to accommodate the occasional Internet access in the kitchen or the need for smart refrigerators in the future? Arranging information points behind the TV cabinet is also a very sensible approach. From gaming consoles, set-top boxes to televisions, it will be very soon before we will see various home appliances equipped with RJ-45 Ethernet interfaces. Networking has begun to enter the actual stage. In order to meet the needs of higher-level information services, current and development services such as telephone, data, multimedia and cable television are provided. Each household can introduce two Category 5 four-pair twisted pair cables. If necessary, two-core optical fibers can also be installed; 1-2 75-ohm coaxial cables and corresponding sockets can be laid synchronously; each household should have a wall-embedded family information access box. Each bedroom, study, living room, dining room, etc. shall be provided with not less than one information outlet, or optical cable socket, and a cable television outlet, which may also be set according to user needs; the main bathroom shall also be set up for telephone information Socket; each information outlet, optical cable socket, or cable TV socket to a wall-embedded home information access box, each with 1 Category 5 Category 4 twisted pair cable, 2 core fiber cable, or 1 75Ω coaxial cable; Wall-embedded family The cabinet of the information access box should be in place once to meet the long-term needs. &8226; Home decoration basic weak line project. 1, telephone exchanges. 2, home area network line. &8226; Watch digital TV, satellite TV, DVD player in every room at the same time? No remote control can be used. &8226; In the living room, the bedroom simultaneously uses the television to chat online, sees the network television, the game, sees the stock market quote, sings karaoke OK and so on, the long-distance control switch machine and so on. Use home theater to watch online movies. &8226; The family background music system allows you to listen to music whether you are cooking, washing or bathing. Your home is full of elegant music like teahouses and bars. &8226; Is the home remote control too much? TV, DVD, digital TV, satellite TV, amplifier, air conditioner, would like to use a remote control can play the same role? &8226; The home is our private place. When someone is invaded, the defensive guards will alarm for the first time, sound the siren, and call the mobile phone to inform you that they can listen to the house sounds, even if they are handled. The &8226; intelligent light control switch allows you to control all the lights in your home, no matter what room you are in. When you get up at night, the light in the hallway and the restroom light up, and you go to bed again. &8226; When you come home from work and enter the house, is it hot again or is it as good as you want? You can turn on air conditioners, water heaters, cook meals, close curtains, etc. wherever you are. 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&8226; How are the children and the elderly at home when they are at work or on a business trip? Am I caring for the nanny? You just have to go online and you can see what they are doing directly. The front, back, left, right, inside and outside of your home are clear.