First, the installation method of junction box
(a), installation steps:
1、? First of all, the furniture company cuts an installation hole on the furniture desktop (please note that different products have different opening sizes);
2、? Put the junction box into the cut;
3、? Fix the junction box with screws;
4、? Connect cables, and pay attention to the length of cables that pop out of the junction box, so that the junction box can pop out smoothly;
5、? Reasonable arrangement of cables;
Precautions:
1)? Be sure to confirm the size of the opening;
2)? If you drill your own hole, don't open it too wide, you need professional tools to cooperate;
3)? Do not tear off the protective film on the surface of the junction box before installation;
4)? The edge of the junction box panel is thin, so pay attention to scratches and bumps;
5)? The length of the cable to be left should be about 25cm, and the junction box can be taken out from the table.
(2),? Install the facade socket (for wall 86 boxes):
1、? First, connect the cable with the vertical socket;
2、? Put the wall wiring board connected with the cable into the wall 86 box, and pay attention to leave a suitable length for future maintenance;
3、? Fix the wall wiring board with 86 boxes of screws.
PVC conduit and junction box should be connected with lock nuts except the original box, and the junction box should be installed on the same horizontal datum line. After the wiring is completed, the reserved wiring outside the wire box should be put into the junction box in a timely and orderly manner, and the wire joints should be evenly and tightly wrapped with insulating tape or protected with crimping caps. In addition, the owner can also observe from here whether the tricolor wire is used in the household wire installation specification.
Second, how to choose the junction box
The choice of junction box is also very particular, because in harsh environmental conditions, the materials selected for junction box and its surface treatment process are very important. Using zinc spraying process or stainless steel material can reliably protect the equipment in the box from mechanical damage. First of all, the model, manufacturer's name or trademark identification of the junction box should be made clear, and it is best to choose a well-known brand, because quality is the key. Secondly, when the network cable is connected, it contacts the terminal evenly, without obvious gaps, and the connection is tight and loose. If the connection is poor, the signal will be good or bad. The socket is flush with the socket, and there are no defects such as bulges and bulges on the edge that affect the insertion and dialing; Household junction boxes should have protective doors; The socket should have a certain width with the edge of the panel to ensure that the plug monopole cannot be inserted; The normal junction box panel has uniform color and bright surface, and there are no defects such as depression and noise, while the fake one is the opposite; Each terminal and connecting screw shall have a bright surface without rust, deformation and cracks; The rated current of switches and sockets shall be greater than or equal to the rated current of the line; The panel is firmly combined with the bottom plate without looseness; The panel and bottom plate should be easily disassembled with the help of tools, which is not tight and difficult to disassemble.
Three. Precautions for installing junction box
During installation, the place with a height of 1.3 ~ 1.5m above the ground shall be selected. If there is a daughter wallboard indoors, it should be at least 20cm away from the top of the board to avoid future troubles such as fire. Secondly, the switch and socket panel should be installed correctly and tightly, flush with the wall; Switches and sockets on exposed lines should be installed on the exposed bottom box, and switches and sockets in the kitchen should be equipped with necessary waterproof covers to avoid short circuit caused by water entering the box. When installing the socket, it shall not be installed on wooden materials such as bedside or desktop, so as to avoid the user accidentally touching the charged body in the jack; If there are users with children at home, the installation height of exposed sockets should be no less than1.8m; It is worth noting that protective sockets should be used in all places where grounding is needed, that is, single-phase equipment three hole socket and three-phase equipment four-hole sockets, and grounding guarantee must be provided. During installation, all wires should be in full contact with the connecting copper column, and there should be no corrosion or oxidation, otherwise it will easily lead to accidents. Try to avoid overload caused by the load exceeding the line power when multiple strands are loaded into the same terminal at the same time; When installing the button junction box, you can remove the panel first, and then install it after the decoration is completed, or you can wrap the panel in a plastic bag for assembly to avoid the panel fouling caused by environmental decoration; Pay special attention to wiring, and do it without electricity.
The junction box plays the role of protecting and connecting wires, so it still needs everyone's attention in home decoration. If there is no standardized operation and installation, there may be security risks. The above contents are the installation methods and precautions of the junction box that Bian Xiao introduced to you today. Want to know more about the junction box, please continue to pay attention to Tuba rabbit decoration!
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