Introduce the definition, application environment requirements and classification of junction boxes
The junction box is a type of industrial connector. The junction box is the terminal of the distribution cable or optical cable, connecting the distribution cable or optical cable and the user line part, and branching the main line, which plays an important role. The junction box can be installed in small spaces such as bridges, boxes, pipes, cable trenches, etc., without occupying the effective use area of the building, easy to install, and no need to cut off the main cable.
The difference between it and ordinary sockets is that the power output of ordinary sockets has only positive and negative levels, or there is another ground wire, while the power output of industrial junction boxes is a pin-shaped I/O port.
Junction box use environment
1) Outdoor junction box use environment
Ambient temperature: -55~+55℃;
Relative humidity: <95%;
Atmospheric pressure: 70~106kPa
2) Indoor junction box use environment
Ambient temperature: -25~+40℃;
Relative humidity: <95%;
Atmospheric pressure: 70~106kPa
Types and specifications of junction boxes
1) Type
①According to the connection method, it can be divided into two categories: crimping type and clip-on type.
②According to the installation method, it can be divided into hanging type and embedded type.
2)Specifications
The junction box products can be divided into 5, 10, 20, 30, 50, 100 loops and other specifications according to their capacity.
