Waterproof pouring bus duct 400A

Waterproof pouring bus duct 400ABus duct has the advantages of small volume, compact structure, reliable operation, high transmission current, easy tap feeding, convenient maintenance, low energy consumption, good dynamic and thermal stability, and long service life.

Bus ducts are suitable for various power transmission main lines, including 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.

When connecting, insert the small end of the bus duct into the large end of another section of the bus duct. Place a matching insulation board between the bus ducts and on the outside of the bus duct, a dense bus duct, and then thread insulation bolts, flat washers, and spring washers. Then tighten the nut with force from the wrench to the specified torque. The air insulated bus duct is then fixed with the upper and lower cover plates. After the bus duct is connected, its shell is connected to a grounding main line. Connect the grounding bolts on the incoming bus duct, distribution switch box shell, and bus duct shell with 16mm2 soft copper wire

Structural performance:

1. The bus duct adopts a reasonable "sandwich" phase line tightly stacked structure design, making the bus duct more compact in appearance, smaller in volume, and increasing the dynamic and thermal stability of the bus system, giving the bus the advantages of low impedance and voltage reduction.2. The shell is made of unsaturated polyester resin and inorganic materials such as asbestos cast as a whole, with light stabilizers and flame retardants added to the resin. Metal casing can also be installed to increase the impact resistance and service life of the busbar system.3. Using a "Y" type waterproof joint, the connection is reliable and convenient.

Introduction to Insulation Configuration：

1. The waterproof busbar trunking insulation medium mainly uses insulation material - polyester imine, with an insulation grade of H and an insulation aging life of more than 50 years. It is a product with good performance in current practical insulation materials.

2. The design of a single bus duct can reach up to 5000 amperes, while other manufacturers require two or three parallel connections, which have higher current load values and smaller volumes than other brands.

3.4000A fully insulated resin cast bus duct, resin cast waterproof bus duct with complete specifications, intelligent cast waterproof bus duct in stock, epoxy resin cast bus duct in high-rise building power supply system. Power and lighting lines are often set separately, and the bus duct is installed vertically along the wall as the main power supply line in the electrical shaft for one or more trips.
4. According to the purpose, a bus duct generally consists of a starting bus duct, a straight through bus duct (with and without sockets), an L-shaped vertical (horizontal) bent bus duct, a Z-shaped vertical (horizontal) offset bus duct, a T-shaped vertical (horizontal) three-way bus duct, an X-shaped vertical (horizontal) four-way bus duct, a variable capacity bus duct, an expansion bus duct, terminal heads, terminal junction boxes, plug-in boxes, related accessories and fastening devices of the bus duct.

Waterproof pouring bus duct 400A

Features:

1. Performance aspect

The busbar adopts copper or aluminum bars, which have high current density, low resistance, and small skin effect, and do not require derating. A small voltage drop also means low energy loss, ultimately saving users' investment. For cables, due to the fact that the cable core is made of multiple thin copper wires, its root area is larger than that of busbars of the same current level. And its "skin effect" is severe, reducing the rated current, increasing voltage drop, and making it easy to generate heat. The energy loss of the circuit is high and it is prone to aging.2. The metal enclosure of the safety enclosed busbar trunking can protect the busbar from mechanical or animal damage. The installation of plug-in units in the distribution system is very safe. The enclosure can be grounded as a whole, and the grounding is very reliable. However, the PVC enclosure of the cable is susceptible to mechanical and animal damage. When installing the cable, the power must be cut off first. If there is an error, it will be very dangerous, especially if the cable needs to be grounded on site. The unreliable grounding increases the danger.3. Installation aspectThe busbar is composed of many sections, each of which is short and light in length. Therefore, only a few people are needed to quickly complete the installation. There are many standard parts and inventory for busbars, which can be shipped quickly and save on-site work time. Its tight "sandwich" structure can reduce electrical space, freeing up more space for commercial purposes such as renting or as public spaces. For installing cables, it is a difficult task. Because a single cable is often heavy, installation work requires the cooperation of many people and takes a lot of time to complete. In addition, due to the bending radius of the cable, more installation space is required.4. Route optimization

By using bus ducts, we can merge certain branch circuits and convert them into a large bus duct using plug-in boxes. It can simplify the electrical system and obtain lower current values for more wires. Therefore, it saves the cost of the project and is easy to maintain. For traditional cable lines, cables make the electrical system extremely complex, large, and difficult to maintain, which wastes engineering costs and installation space.5. ScalabilityFor busbars, system expansion can be achieved by adding or changing several segments, resulting in a high reuse rate. In most cases, cables cannot be reused because their length and route are different. If we want to expand the system, we need to purchase new cables to replace the old ones.6. Plug in switch boxPlug in switch box can be used with air type bus duct. No additional accessories are required during installation. The plug-in pin is an important component, which is made of copper alloy stamping, heat treated to enhance elasticity, and tin plated on the surface. Even if it is plugged in more than 200 times, it can still maintain stable contact ability. The box is equipped with a grounding point to ensure reliable grounding, and a switch circuit is installed inside the box. A plastic shell circuit breaker is used to provide overload and short-circuit protection for the capacity of the tapped lines.

Quick connection: TM connector abandons traditional planning and makes equipment speed twice as fast as general connectors. And because its non bus duct is mainly used for power transmission We know that all conductors have losses, and the losses caused by the flow of electricity through conductors can be greater or lesser For example, compared to copper wires of the same diameter, aluminum wires have higher losses and copper wires have lower losses That is to say, the conductivity is different Copper has a relatively high conductivity We also know that the larger the cross-sectional area of copper, the greater the amount of electricity transmitted Household wires are copper wires wrapped in an insulating outer layer Because households do not have a high demand for electricity, ordinary copper wire can provide electricity for everyone If it is a large workshop, the current needs several thousand amperes So, the current that this copper wire can provide is far from enough. At this point, the copper bar comes into play because its cross-sectional area is larger and can carry more current The basic prototype of plug-in bus duct is to cover the copper busbar with a protective shell Now, do you understand the function of plug-in bus ducts That means it can provide a larger current as needed, with a maximum of 6300A and 500A reversibility, so that there will be no phase error when two busbars are connected, simplifying the equipment program and promoting safe and fast equipment.

Installation rules for busbars: handling and storage slots; Busbars shall not be suspended or tied with bare steel wire ropes, and busbars shall not be arbitrarily stacked or dragged on the ground No other work should be done on the shell, and a multi-point lifting forklift will be used to smooth the shovel without damaging the bus duct Busbars should be stored in a warehouse, dry, clean, and free of corrosive gases Soft packaging should be placed between the top and bottom of the bus and properly stored

Installation inspection of bus duct: Check whether the bus housing is intact, whether there is damage or absence, check if the bus housing bolts are loose, and ensure that the bolt connection is reliable; Check that the bus plug interface is closed; Using a 500 volt megohmmeter to measure insulation resistance, its resistance value should not be less than 20 meters per day, Ω

Bus duct connection: The bus duct bracket must be installed firmly, and the bus duct should be placed accurately according to the number of segments, phase sequence, number, direction, and installation marks. The bus duct segments should be connected to each other, and adjacent segments of the bus duct should be directed towards the bus conductor and shell. After connection, they should not be subjected to mechanical stress