The low-voltage cable distribution box is applicable to the low-voltage power distribution system with AC 50Hz and rated voltage of 220/380v in industrial and civil buildings for lighting distribution and power circuit leakage, overload, protection, etc. The box is made of SMC glass fiber reinforced polyester material It has many advantages such as environmental protection, beautiful appearance, no light pollution, strong insulation, chemical corrosion resistance, flame retardant and thermal insulation, good toughness, novel and compact mechanism, convenient assembly, and unique rain proof and ventilation design This product can be flexibly designed according to the requirements of power users and design departments and the principles of safety, economy, rationality and reliability. The product has the characteristics of high breaking capacity, good dynamic and thermal stability, flexible electrical scheme, convenient combination, strong practicability, novel structure, high protection level, etc. It can be widely used in the three-phase low-voltage transmission and distribution system of outdoor public places such as power transformation and distribution stations, public mining enterprises, both sides of streets, garden residential areas, high-rise buildings, airports, key construction and reconstruction projects, as a certain type of equipment that distributes power to other users and equipment by cables.Rated working voltage: AC3800V Rated operating frequency: 50 (60) Hz Rated insulation voltage: AC800V Rated working current: 100A, 200A, 400A, 630A, 800A, 1000A Rated short-circuit strength: 50KA Enclosure protection grade: IP44 Features of low-voltage cable branch box: 1. The box structure is divided into SMC composite material combination mode and metal plate production mode. 2. The box of SMC composite material combination mode is made of glass fiber reinforced polyester resin as a whole, and the box is a plate structure, which can be simply assembled with simple tools. The surface of SMC composite box is cast with strip The edge has the function of preventing small advertisement pasting. 3. The metal box is made of stainless steel plate, aluminum coated zinc plate or ordinary steel plate. The box is formed by bending and spraying outdoor plastic powder. The structure is compact and the appearance is beautiful. 4. The prefabricated cable plug device is adopted, which has the excellent performance of full insulation, full sealing, full waterproof, maintenance free, safe and reliable. The cable plug devices have various varieties, complete specifications, serialized configurations, and convenient disassembly and assembly. 5. The cable branch box adopts the structure of component module assembly and frame assembly, and the bus and feeder are insulated and enclosed. 6. The incoming and outgoing lines shall be insulated closed disconnectors. The incoming and outgoing lines shall be plastic case circuit breakers. The incoming and outgoing lines shall be insulated closed disconnectors. The incoming and outgoing lines shall be knife fused switches The incoming and outgoing lines of the strip switch (with fuse protection) have no switches, and the outgoing and outgoing lines are knife fuse switches. The incoming and outgoing lines are not equipped with switches. 7. A variety of branching methods, box types and installation methods are provided, and users can choose from flexible solutions Select to meet the needs of distribution network and users. Installation, use and precautions of low-voltage cable branch box: 1. Whether the operation method for the installation and connection of cable branch box and cable joint is correct, whether the installation process of cable head is familiar, and whether the sequence of the combination of components inside the cable branch box and cable joint parts is in accordance with the manufacturer The service life and normal operation of the cable branch box will be directly affected if the installation specification is provided for operation. 2. Before the operation of the cable branch box, check whether the grounding wire of each branch cable is firmly connected with the grounding terminal of the box. At the same time, the box shell must be directly connected to the grounding grid or have an obvious grounding point. 3. After the installation of the cable branch box is completed, the cable components must be tested together according to the relevant test standards and conditions.Ambient temperature: maximum temperature: +40℃, minimum temperature -30℃ Wind speed: quite 34m/s (not more than 700Pa) Humidity: The average daily relative humidity is not more than 95%, and the monthly average relative humidity is not more than 95% Anti-vibration: the horizontal acceleration is not more than 0.4m/s2, the vertical acceleration is not more than 0.15m/s2 Installation site inclination: no more than 3o Installation environment: The surrounding air should not be significantly polluted by corrosive, flammable gas, water vapor, etc., and there should be no severe vibration at the installation site Note: Please consult with our company when ordering this product beyond the above conditions.