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Products used for cable concealed installation-cable junction box and switch box

Products used for cable concealed installation-cable junction box and switch box

2021-12-03

Wires and cables are important materials used in daily life production. They can transmit electromagnetic energy and information, so they are widely used. However, when installing electrical circuits in actual buildings, concealed installation is generally adopted, and junction boxes (junction boxes), junction boxes, and switch boxes are required. Many people think that a switch box is a junction box. In fact, there is a difference between a switch box and a junction box. Next, Ocean Cable will teach you how to distinguish between a cable junction box and a switch box.


The difference between the cable junction box and the switch box: the meaning is different.


The switch box is the bottom box behind the switch and socket panel, which is used behind the switch and socket panel and installed on the wall; while the cable junction box is in the electrical piping line, the wire tube is connected to the junction box, and the wires in the line tube are in the junction box The box that is connected in the middle to protect the wires and connect the wires, this is the junction box. In fact, there are reserved boxes for pipelines to load terminals. They are all junction boxes. Their function is to facilitate threading, branching and transition wiring for wiring and branching of conduits, lamps, etc.


The difference between the cable junction box and the switch box two: different purposes.


There will be connectors in the cable junction box, so it is more suitable for these situations: when the switch and the light circuit are crossed, it will be wasteful if all the pipes are used, and a junction box will be added near the intersection of the top plate and the wall here. The form realizes the branch; in addition, when the single-segment pipe is long, a junction box will be added in the middle for the convenience of construction.


And cable switch boxes are installed in power stations, substations, and power customers that consume a lot of electricity.


The third difference between the cable junction box and the switch box: the calculation method is different.


The calculation method of the switch box is calculated according to the number of switch sockets; and the calculation method of the cable junction box is generally the number of lamps + the number of pipes (one 30 meters without a turn, one turn at 20 meters, two turns at 12 meters, 8 meters Three turns).


Although there are several differences between the cable junction box and the switch box, it does not mean that they have nothing in common. That is, (1) The cable junction box and the switch box are all auxiliary materials used in cable installation. In the box installation quota sub-item, it is indeed the unpriced main material, and the unit price of the main material needs to be entered; (2) When calculating, calculate according to the number of drawings, pipeline conditions and pipeline and elbow conditions, otherwise it will not be underestimated. Count more; (3) Cable junction boxes and switch boxes, whether they are metal boxes or pvc plastic boxes, are currently commonly used in installation projects for h86 type boxes, which have a width of 86mm and a depth of 50mm. 70mm ( h86*s50, h86*s60, h86*s70, h86*s80, 146h*s50, 146h*s60).


Well, the above is the introduction of the difference and common points between the cable junction box and the switch box. I hope everyone can understand, and then distinguish clearly, and use the product to install the cable.

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