The construction specification of weak wiring is the guideline for wiring construction, and it is also the basis and standard for construction unit and customer acceptance. Then, in the construction of integrated wiring, as a construction party, what kind of wiring standards should we use to operate it? When we construct weak wiring, what problems should we pay attention to? Here we take you to understand: wiring construction details and construction of several points.
Weak wiring construction details:
First, determine the point
1. The basis for point determination: According to the home wiring design drawing, combined with the schematic diagram of the point on the wall, mark the position of the cassette at each point with a pencil, ruler or ink fountain.
2, the cassette height is determined: 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 are multiple cassettes together, the distance between the cassettes is at least 10mm.
Second, slotting
1, to determine the slotting route: According to the following principles: a, the shortest route principle; b, does not destroy the original principle of strong electricity; c, does not destroy the principle of waterproof.
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 slot depth: If you choose 16mm PVC pipe, the slot depth of 20mm; if you choose 20mm PVC pipe, the slot depth of 25mm.
4, the appearance of troughs: 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, integrated wiring
1. Determine the smoothness of cables: a. Testing of network cables and telephone lines: Make crystal heads respectively, and use a network tester to test continuity; b. Testing of cable TV lines, audio and video cables, and audio cables: test and disconnect each other with a multimeter. c, other cables: use appropriate professional instrument test off.
2. Determine the length of the wire for each point: a. Measure the length of the wiring box slot to the end of each point; b. Add the length of the redundancy line at each point and the wiring box slot: the outlet line of each point The length is 200mm-300mm.
3, to determine the label: the various types of cable cut to a certain length after the two ends of the line are labeled, and indicate: weak type - room - serial number 4, determine the number of inside the pipe: the cross-sectional area of ​​the pipe shall not exceed the pipe 80% of the cross-sectional area.
　 Fourth, sealing slot
1.Fixed cassettes: In addition to the kitchen and toilet 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: a, ground PVC pipe requires a fixed interval of one meter; b, slot PVC pipe requires two meters every interval must be fixed; c, wall slot PVC pipe every interval of one meter must be fixed.
3. Sealing groove: The wall surface and ground surface after sealing the groove must 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.
In addition, in order to avoid the bending circuit of all kinds of lines, all lines are guaranteed to be “live linesâ€, and the wiring construction process is a direct method of laying on the ground (no special conditions are allowed to walk in the baseboard or the ceiling, otherwise the lines cannot be made “liveâ€. line").
Several points to pay attention to construction of weak wiring:
1, according to the location of electrical equipment, determine the direction of the pipeline, elevation and switch, socket location:
a. The spacing of power sockets shall not exceed 3m, and shall not exceed 1.5m from the doorway and 30cm from the ground. (International Standards); b. Height of all sockets is 30cm from the ground; c. Switches are installed 1.2~1.4m away 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 power 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 should be worn out. The thread tube remains 5 mm in the cassette.
5, the dark line laying must be piped.
6. The same circuit cable should penetrate the same pipe, but the total number of pipes should not exceed 4.
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 shall be located in the junction box. The joints shall be firmly connected and the insulation tape shall be wrapped evenly and tightly.
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 should be installed in the kitchen and bathroom. Switches should 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 approval form†must be completed before construction.
In summary, we have learned four rules that need to be learned when constructing weak wiring and 12 points to pay attention to during construction. Then in the later weak electrical wiring construction project, we also suggest that everyone integrate the theoretical knowledge into practice to improve the process of weak wiring construction and provide work efficiency.
Weak wiring construction details:
First, determine the point
1. The basis for point determination: According to the home wiring design drawing, combined with the schematic diagram of the point on the wall, mark the position of the cassette at each point with a pencil, ruler or ink fountain.
2, the cassette height is determined: 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 are multiple cassettes together, the distance between the cassettes is at least 10mm.
Second, slotting
1, to determine the slotting route: According to the following principles: a, the shortest route principle; b, does not destroy the original principle of strong electricity; c, does not destroy the principle of waterproof.
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 slot depth: If you choose 16mm PVC pipe, the slot depth of 20mm; if you choose 20mm PVC pipe, the slot depth of 25mm.
4, the appearance of troughs: 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, integrated wiring
1. Determine the smoothness of cables: a. Testing of network cables and telephone lines: Make crystal heads respectively, and use a network tester to test continuity; b. Testing of cable TV lines, audio and video cables, and audio cables: test and disconnect each other with a multimeter. c, other cables: use appropriate professional instrument test off.
2. Determine the length of the wire for each point: a. Measure the length of the wiring box slot to the end of each point; b. Add the length of the redundancy line at each point and the wiring box slot: the outlet line of each point The length is 200mm-300mm.
3, to determine the label: the various types of cable cut to a certain length after the two ends of the line are labeled, and indicate: weak type - room - serial number 4, determine the number of inside the pipe: the cross-sectional area of ​​the pipe shall not exceed the pipe 80% of the cross-sectional area.
　 Fourth, sealing slot
1.Fixed cassettes: In addition to the kitchen and toilet 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: a, ground PVC pipe requires a fixed interval of one meter; b, slot PVC pipe requires two meters every interval must be fixed; c, wall slot PVC pipe every interval of one meter must be fixed.
3. Sealing groove: The wall surface and ground surface after sealing the groove must 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.
In addition, in order to avoid the bending circuit of all kinds of lines, all lines are guaranteed to be “live linesâ€, and the wiring construction process is a direct method of laying on the ground (no special conditions are allowed to walk in the baseboard or the ceiling, otherwise the lines cannot be made “liveâ€. line").
Several points to pay attention to construction of weak wiring:
1, according to the location of electrical equipment, determine the direction of the pipeline, elevation and switch, socket location:
a. The spacing of power sockets shall not exceed 3m, and shall not exceed 1.5m from the doorway and 30cm from the ground. (International Standards); b. Height of all sockets is 30cm from the ground; c. Switches are installed 1.2~1.4m away 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 power 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 should be worn out. The thread tube remains 5 mm in the cassette.
5, the dark line laying must be piped.
6. The same circuit cable should penetrate the same pipe, but the total number of pipes should not exceed 4.
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 shall be located in the junction box. The joints shall be firmly connected and the insulation tape shall be wrapped evenly and tightly.
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 should be installed in the kitchen and bathroom. Switches should 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 approval form†must be completed before construction.
In summary, we have learned four rules that need to be learned when constructing weak wiring and 12 points to pay attention to during construction. Then in the later weak electrical wiring construction project, we also suggest that everyone integrate the theoretical knowledge into practice to improve the process of weak wiring construction and provide work efficiency.
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