How to operate the circuit transformation? Detailed description of circuit conversion steps

Strict planning is needed before the renovation of home improvement circuit to eliminate hidden dangers in later use. Therefore, it is necessary to follow certain procedures to ensure that the circuit transformation meets the requirements. So how to operate the circuit transformation? Next, I will give you a detailed explanation of the steps of circuit transformation, hoping to help you.

How to operate the circuit transformation?

Circuit transformation steps 1, disclosure and pay-off: the project manager will make technical disclosure to the workers, and then the foreman will pay off the line according to the design requirements. The width of the groove is 50 mm, and the pay-off should be accurate, and no leakage can be found.

Step 2: Dismantle the original wires and switch sockets: replace all the original lamps, wires and switch sockets with brand products. The quality of the original wire can not be guaranteed, the conductivity is poor, and there is even the danger of leakage and fire. Old and new wires can't be mixed, because the resistance is different, which is prone to line failure.

The third step of circuit transformation: slotting and drilling: slotting is carried out according to the actual setting-out position of the construction site, and the slotting depth should be paid attention to when slotting. Because cement mortar must be poured on it, the depth must be higher than the pipe diameter. The top surface cannot be slotted. If there is no ceiling on the top surface and wiring is needed (such as bay window), the wire slot should be cut shallowly on the top surface, and the wire should be wrapped with a thin conduit and then fixed in the slot. Where the wall and lintel passage need to be drilled, the hole diameter and hole spacing during drilling are generally100 mm; ; Wires and water pipes can't pass through a hole. Although the standard is horizontal, flat and vertical, with three elbows and one crossing box, such construction will increase a lot of empty panels, which will affect the appearance and increase the cost. Pipes can be arranged obliquely in a straight line, so that the pipes have neither elbows nor boxes, which is convenient for construction and maintenance.

Step 4: Pipe laying: Pipe laying shall be carried out according to the slots opened in the construction site. When laying pipes in rooms with water, electrical pipes shall be laid on walls and roofs. Strong and weak wires are not allowed to walk on the floor of the balcony in the kitchen and bathroom. The layout of the through-wall pipeline should be straight and try not to bend. If there is a bend, there should be no obvious crease at the corner. The distance between strong and weak current must be greater than or equal to 150mm to prevent unclear cable signal. The distance between gas pipeline and electrical pipeline should not be less than 150 mm, and the height of switches installed in rows should be consistent, and the height difference should not be greater than 2mm. The spacing between cassettes is 10mm, the height of sockets from the ground is generally at least 300mm, and the switch position is generally 1300mm from the ground. When threading, the sum of the cross-sectional areas of the wires passing through the conduit must be less than 40% of the cross-sectional area inside the conduit. In general, there should be no more than 3 wires of 16mm and 4 wires of 20 mm ... Strong and weak wires should be laid through pipes, and wires of different models should not be installed in the same conduit. In the wiring process, the junction box is used at the conduit connection, and the wiring cap is used at the wiring. Color separation is required when wiring. Ceiling lighting line adopts hose (above 200mm); Ceiling inner pipe fixing brackets are arranged in rows to install the center line of lamps. When multiple socket wires and switches are connected in the socket box, arch head connection is not allowed, and LC type crimping cap should be used to crimp the main head before branch connection. The line pipe should be locked into the box, and the line head 15cm in the box must be looped.

Step 5: Check the wiring: Use multimeter and ohmmeter to check whether the wiring is smooth, short circuit and open circuit. Insulation resistance between wires is greater than or equal to 0.5mΩ, so as to prepare for installation of switch socket.

The sixth step of circuit transformation: install switch sockets and lamps: before installation, all sockets in the house are not allowed to be used, and only cable boxes designated by the company can be used. Pay attention to the switch socket panel should be flat and close to the building surface. The same switch has the same cutting position, flexible operation and reliable contact.

The above is the circuit transformation brought by Bian Xiao. How to operate? The whole content of the circuit transformation steps is explained in detail.