Junction box

In home decoration, the junction box is one of the electrical accessories, because the wires for decoration pass through the wire pipe, and the junction box is used as the transition at the joint of the wire (such as the line is relatively long, or the wire pipe needs a corner). The wire pipe is connected with the junction box, and the wires in the wire pipe are connected in the junction box to protect and connect the wires, This is the junction box.

The general junction box is composed of box cover, box body, wiring terminal, diode, connecting wire and connector. The use requirements are as follows:
1) the shell must have strong anti-aging and ultraviolet resistance.
2) Meet the use requirements of outdoor harsh environmental conditions;
3) The self-locking function makes the connection more convenient and firm;
4) It must have waterproof sealing design, scientific anti electric shock insulation protection and better safety performance;
5) The wiring terminal shall be firmly installed and have good weldability with the bus;
6) The main function of diode is one-way conduction function;
7) Connectors and connecting wires: with good insulation performance, the male and female plugs have self-locking function, which makes the electrical connection between solar panels more convenient and reliable.

Waterproof grade of plastic waterproof box
The general waterproof grade is between ip63 and IP68. Specifically divided into
Ip63: water or rainwater has no influence from the 60 degree corner to the shell;
IP64: liquid splashed on the shell from any direction has no harmful effect;
IP65: flush with water without any damage;
IP66: it can be used for the environment in the cabin;
IP67: it can withstand immersion in a short time (1m);
IP68: immerse in water for a long time under certain pressure, such as deep-water cable wiring.

Main uses of plastic waterproof box
Waterproof boxes have different names due to regional differences and different scope of action. Waterproof boxes are mainly used in industry, such as waterproof junction boxes, waterproof instrument boxes, waterproof photovoltaic junction boxes, etc. waterproof boxes are mainly suitable for indoor and outdoor electrical, communication, fire-fighting facilities, iron and steel smelting, petrochemical, electronics, electric power, railways, construction sites, mines, mining yards, airports, hotels, ships Large factories, coastal factories, unloading dock equipment, waste water treatment facilities. Environmental pollution facilities, etc.

Before 2000, metal waterproof boxes made of iron were mostly used in China; After 2000, with the rapid development of science and technology and the improvement of plastic technology, plastic waterproof box has gradually replaced metal waterproof box because of its low cost, good insulation and high waterproof degree. plastic electronic enclosures.