Processing customized plug-in bus duct with durability

Processing customized plug-in bus duct with durability

Multi output function enclosed connector plug-in bus duct, used to control the bus duct, generally used to lead out the power outlet on the enclosed bus duct. The plug-in box is equipped with an automatic air switch for cutting off and connecting the power supply. Bus duct plug-in box, also known as distribution box and cable transfer box, is mainly used for power supply tapping in bus ducts. The product is widely used in large transmission and distribution power plants such as factories, high-rise buildings, and shopping malls. The bus duct plug-in box adopts silver plated plugs, which are compact in structure, easy to plug in and out, and sturdy and durable. The company provides supporting sockets and outlets. The plug-in bus duct has strong overload capacity, which depends on the high working temperature of the insulation material used. The insulation material used for the bus duct is made of materials with a working temperature of 105 ℃. Radiation cross-linked flame-retardant winding tape (PER) and heat shrink tubing with a working temperature of over 140 ℃ have been developed. It is to wrap several conductors in a metal shell through a reasonable and safe structure to form a complete transmission and distribution system with electrical continuity. Ordinary bus ducts are generally divided into two types: dense insulation type and air insulation type. Air insulated structure is simple and capable of carrying large currents; The dense insulation structure is compact and has good heat dissipation capability. They all have the characteristics of strong overload capacity, convenient tapping, and small space occupation.

Convenient tapping of busbar trunking: The so-called plug-in busbar trunking refers to its use of plugging to tap the power supply of the main line to the branch line, making tapping very convenient. The disadvantage of prefabricated branch cables is that they need to be customized from the factory; The branch connection method adopts an open "C" - shaped clamp. After a long time, can the clamping force be guaranteed? Due to the high cost of each branch head, prefabricated branch cables are still not widely used today. Any floor needs to cut off the power supply, and the bus duct does not need to be powered off. As long as it is unloaded, the plug-in box of the bus duct can be removed. 2. Strong overload capacity of busbar trunking: The strong overload capacity of busbar trunking depends on the high working temperature of the insulation material used. The insulation material used for busbar trunking is made of materials with a working temperature of 105 ℃. Radiation cross-linked flame-retardant winding tape (PER) and radiation cross-linked hydrocarbon heat shrink tubing with a working temperature of over 140 ℃ have been developed. The insulation material used in cables generally operates at temperatures of 95 ℃ and 105 ℃, so the overload capacity of bus ducts is much greater than that of cables. 3. The reason is that cable overload is also caused by cable fire. The insulation layer and outer skin of ordinary cables will burn, and flame-retardant cables will also burn under flames. They only do not burn after the flame has left, while fire-resistant cables will not burn, but they are expensive. Only fire-resistant cables are used for power supplies that are not allowed to be cut off, such as firefighting. The outer shell of the bus duct is made of steel and will not burn. Even if the insulation material of the copper bar burns, the flames will not spread outside the bus duct.

Two sockets can be arranged in a length of one meter, such as two sided sockets, which can reach four sockets without affecting the strength of the busbar support. By inserting the current branch through the plug-in box, one can avoid the trouble of cable stripping and unsafe connection. If your product or equipment is replaced, reassemble and install the busbar, and ensure that the busbar socket branch always reaches the position you need. Therefore, using busbar wiring can satisfy you for life. The power transmission system used for high-rise and super high-rise buildings has a large capacity of busbar trunking, easy branching, and a current of up to 5000A. Moreover, the busbar trunking can reserve sockets at any position, making branching extremely convenient. Therefore, busbar trunking has been rapidly promoted and applied in construction projects. When the busbar is laid vertically through the top plate, it should be supported and fixed with channel steel on the bottom plate it passes through. When the enclosed busbar crosses the expansion joint or settlement joint of the building, measures that adapt to the movement of the building structure should be taken to prevent the horizontal movement of the busbar connection from causing fracture and affecting the power supply and distribution of the busbar. The installation technology requirements for composite aluminum alloy enclosed busbar trunking are high, and the Jinghong plug-in busbar trunking also has high requirements for the quality of embedded parts on the building structure, the strength of the supporting structure, and the installation accuracy. In order to ensure installation quality, it is better to use a theodolite at the construction site to find a uniform height on each embedded part and mark it properly, which can effectively reduce horizontal installation errors.

Processing customized plug-in bus duct with durability

Suitable for various power transmission main lines, there are two types: high-voltage bus ducts and low-voltage bus ducts. Power transmission from transformers to distribution cabinets in high-rise buildings, industrial plants, airports, docks, subways, and comprehensive construction projects, as well as from distribution cabinets to workshops and floors. A high-strength insulation board with high insulation, arc resistance, and flame retardancy is used as a connecting accessory, which is fastened with bolts with insulation sleeves. According to the standard requirements, in order to satisfy the overlapping area of the busbar, the gap between the bolt holes and bolts is small, because the busbar slot bolts have added insulation sleeves, making the gap narrower. Therefore, when connecting the main busbars of two bus ducts, the axis lines of the two bus ducts should be strictly kept on the same centerline, and the bolt holes of the busbars and insulation plates of the two bus ducts should be aligned. When tightening the bolts, each bolt should be tightened uniformly in sequence. This intention is to prevent the insulation sleeve on the bolt from being damaged by shear forces during the equipment process. During the construction process, the author discovered several situations where the insulation of the bus duct decreased due to damage caused by the stress on the bolt insulation sleeve. The connection of grounding can be achieved by using busbar shells that meet the grounding requirements, but when all busbar shells are treated with spraying, the two sections of busbar ducts must be connected with grounding bolts using wires. The insulation of the bus duct should be checked before and after the equipment, and a comparison should be made to see if the insulation of the bus duct has decreased due to equipment quality issues.

The installation of bus ducts should comply with the following regulations: 1. The installation environment in the well should be clean and free of water seepage, and the wall should be completed; 2. The holes through the walls and floors of the bus duct should not affect the horizontal and vertical alignment of the bus duct. The holes should be smooth and the fire sealing should meet the requirements; 3 waterproof steps meet waterproof requirements; The installation quality of the two spring brackets should meet the following requirements: 1. The base of the spring bracket should be firmly fixed, and there should be a movable gap between the base and the bus duct shell; The spring should be perpendicular to the base and in a semi compressed state, and the upper nut of the spring should be in a loosened state; The installation quality of the three brackets should meet the following requirements: 1. The brackets should be firmly fixed and set reasonably; Anti sway brackets have been installed at the interface of the 2 bus ducts, and the anti sway brackets should be tightly attached to the outer shell of the bus duct; Bus duct is made of high conductivity copper and aluminum materials for transmitting electrical energy. It is a product that collects and distributes electrical energy.