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1, construction workers must follow the construction plan.
2. Check whether the original line is qualified. If it is not qualified, it is recommended to re-arrange all.
3. Check whether there is any leakage protection switch at the general power supply of the household before construction. If there is no immediate installation, use electricity after construction.
4. Each household should set up separate household distribution boxes. The leakage switch should be set in the distribution box and the points should be routed. Under normal circumstances, the strong power should be divided into four groups: air-conditioning, lighting, ordinary power sockets, and kitchen-specific sockets.
5. It is determined by the customer whether the original house switch sockets and lighting fixtures are to be retained. If they are to be retained, they must be removed after the quantity is approved by the customer and properly kept.
6. Lines between kitchens and kitchens must not be laid underground. The insulation resistance between the conductors and between conductors shall be greater than 0.5 MΩ, and the grounding resistance of the grounding conductors in the flame retardant pipe shall be less than 10 MΩ.
7, all lines must wear tube. All lines and accessories must use qualified products and retain product certification.
8, the depth of the slot on the wall shall not exceed 40mm.
9. Do not slot the prefabricated panels, cast-in-place panels, beams, or columns. Only the plastering layer can be removed at the prefabricated part, using a yellow wax tube.
10, 15 tube can wear three 4 square millimeter copper wire, four 2.5 square millimeter copper wire; 20 tubes can wear five 4 square mm copper wire, seven 2.5 square mm copper wire. (Inner pipe cross-sectional area ≤ 40% of the inner diameter of the threaded pipe.
11, PVC pipe and junction box must use lock mother connection.
12, PVC pipe buried in the wall, after the completion of the line and electrified after the inspection can be buried, the wall surface of the final plaster surface should not be less than 5mm.
13, line tube construction must be fixed firmly.
14, the dark box and switch panel installation should be installed horizontally, fixed firmly, adjacent switch sockets in the panel mounted closely spaced, spacing is generally about 1 mm.
15, home decoration in the ordinary power outlet phase, neutral, ground wire is 2.5 mm2 copper wire; air conditioning line is ≥ 4 mm2 copper wire, air conditioning ground wire can be 2.5 mm2 copper wire.
16. Each room is preset air-conditioning outlet according to customer requirements.
17. Before installing the switch panel, all line connectors must be fully wrapped and the wires should not be exposed.
18, the power cord must use copper wire, television lines, telephone lines, audio lines, network lines use high-quality lines.
19, different voltage levels, different loops and AC and DC conductors shall not be worn in the same tube. Several loops of the same type of lighting can penetrate the same pipe.
20, single-phase two-hole socket, the left hole or lower hole facing the socket is connected with the zero line; single-phase three-hole socket, the left hole facing the socket is connected with the neutral line, and the grounding line should be placed in the upper hole.
21. The grounding terminal must not be directly connected to the neutral terminal.
22, all lines in the threaded pipe shall not have connectors.
23, 6 square millimeters below the single stranded copper core should adopt the winding method, winding requirements greater than 5 laps, after the winding tin, tin should be full, with insulation tape and black tape double wrap.
24. The same type of switches and sockets in the same room are of the same height from the ground.
25, surround sound line according to user requirements pre-embedded to a suitable location, stay in the wall outside the part shall not be less than 1.5 meters, so that direct access to the audio, to avoid sound quality attenuation. The audio cable should be buried in the junction box.
26, the wire inside the box should have a margin, usually 15 cm, when the wiring phase into the switch, the zero line directly into the lamp, screw mouth phase should not be connected to the shell.
27. All kinds of strong and weak wires shall not be exposed in the ceiling.
28. Under normal circumstances, the height of ground sockets is 300mm below the floor after completion. The lower switch is 1300mm from the ground, the air conditioner outlet is 1800mm from the ground, the kitchen appliance outlet is 1000mm from the floor, and the bathroom outlet is 1300mm from the floor. The kitchen and the bathroom should consider whether to use waterproof sockets according to specific conditions. If only a part of the line transformation project, the height of the switch socket should be unified with the height of the original house switch socket.
29, the room should consider air conditioning out of the wall hole, wall-mounted machine embedded not less than φ55.9mmPVC pipe, generally 2000mm from the ground. Cabinet embedded not less than φ70mm PVC pipe, generally 200mm off the ground.
30, lamps grouped according to the design of the control, the main light switch in the living room is generally set to 2 groups, can not be free to recommend the use of computer-controlled switch.
31. After the completion of the circuit transformation, care should be taken not to damage the circuit in the wall during the construction of the next process and the installation of decorative parts.
32, wall wiring, slotting, plastering project with a cutting machine slot, construction hammer cut chisel, the edge of the slot after the hair after the plaster, so that vibration is small, after the pull pull the grafting is better, not easy to crack.
33. The bending angle of the line tube will be guided into a rounded corner so that it is easy to wear (change) the thread and it is not easy to damage the wire sheath.
34. Set up the vacant video threading tube between the rear projection and the ground plug, so that the rear projection TV and audio and CD player lines are set as dark lines, which does not affect the appearance.
Electricity knowledge:
1.5mm2 copper wire can withstand 2200W load
2.5mm2 copper wire can withstand a load of around 3500W
4mm2 copper wire can withstand 5200W load
6mm2 copper wire can withstand 8800W load
10mm2 copper wire can bear a load of about 14000W.
Acceptance Criteria:
1. The same type of switches and sockets in the same room have the same height, the spacing between adjacent panels is the same, the installation is firm, the cover is positive, the position is reasonable, and the surface is clean.
2. The lighting of all rooms is normal.
3, all room power and air conditioning outlets use normal.
4, all rooms telephone, audio, television, network cable can be used normally.
5, to provide the decoration of the renovation of the completion of the map to the customer, indicating the wire specifications and line direction.
6, all installed electrical equipment (such as exhaust fans, Yuba, sensor equipment, etc.) use normal.
Xi'an renovation classroom circuit reconstruction engineering construction process, process and acceptance criteria
Xi'an renovation classroom circuit reconstruction engineering construction process, process and acceptance criteria