Circuit construction needs special attention, which is directly related to the safety of family members. The circuit construction shall be carried out according to the design requirements, such as pay-off → circuit budget → excavation of concealed slots and holes through walls → blanking of water pipe measuring ruler → installation of pipe supports → pre-installation of water pipes → formal installation and fixation → testing of water and pressure.
First, the circuit construction process
1. Line construction: confirm the lines that need to be reconstructed.
2. After the elastic line is confirmed, sign the water and electricity confirmation form, budget the circuit (strong and weak current) transformation cost, and the customer will sign for confirmation.
3. Slot along the line with marble machine after the line reconstruction scheme is determined.
4. After the circuit construction is completed, record the insulation resistance value.
5. Add a clip every 40cm to fix the circuit pipeline, and fix a clip on both sides of the elbow from 100mm to150 mm..
6. The terminal should be used to connect the circuit terminals.
7, ceiling lighting head line must use flame retardant hose.
8. All exposed threaded ends shall be protected by wire protection caps to prevent electric shock.
Second, the circuit construction steps
1. During the circuit transformation, the position of electrical equipment, power supply, switch, socket, lamps, light source, pipeline direction, elevation and elastic line positioning shall be determined according to the design requirements and customer requirements.
2. When the power cord is buried in the wall ground, it must be cut with a cutting machine on the wall ground, and the horizontal slot length shall not be greater than 50CM.
3. Pipe laying should be horizontal, flat and vertical, and the bend pipe should be bent by a professional pipe bender, and hard bending is not allowed. 20CM bend and pipe connection must be fixed with pipe clamps. Wiring on the kitchen and bathroom floor is strictly prohibited.
4. The wires in the same loop should be inserted into the same pipe. The total number of internal threads of 16mm conduit shall not exceed 3, and the total cross-sectional area of wires (including insulating sheath) shall not exceed 40% of the cross-sectional area of the conduit.
5, card installation should be in the same horizontal plane, general socket height 300mm, switch height 1400mm, the same switch and socket in the same room must be in the same horizontal plane.
6. The terminal is made of wire pressing cap and German WAGO wire connector.
7. When wiring the power cord, the cross-sectional area of the wires used should meet the output power of the equipment (generally, air conditioners are wired with BV2.5 and BV4).
8, communication lines, audio lines, signal lines and other weak current lines should be unblocked, the directional distance should be short, and the horizontal laying of concealed pipes should not exceed 30mm, otherwise the crossing box should be installed. The horizontal spacing between the strong and weak current sockets should not be less than 500mm, and the strong and weak current wires should not penetrate into the same conduit, which can not only reduce the electromagnetic interference between them, but also prevent the occurrence of safety accidents.
Three. Matters needing attention in circuit construction
1, shallow groove, effectively prevent the steel bar from being cut off. The circuit construction of home improvement project is a secondary reconstruction project, and the damage to the main structure of the building should be minimized in the circuit construction. Due to the small diameter of single pipe, the lines are laid side by side, and the wall is shallowly slotted, which effectively prevents the risk of cutting off the steel bars in the main structure of the wall, and also solves the problems of direct burial and difficulty in drawing and changing lines in sheath line.
2. Construction technology of single pipe and single conductor system, each pipe only wears one conductor, which effectively prevents short circuit between conductors in the pipe and effectively avoids knotting, kinking or deadlock of conductors in the pipe.
3, pipeline color recognition, to prevent the phase line connection error; The red line tube is the phase line, the blue line is the zero line, the yellow line is the ground line, and the white line is the branch line of the switch circuit. Marking pipes with the same color can effectively prevent connection errors. Red is the phase line.