Busbar is made of what material

Bus refers to the connection of all levels of voltage distribution devices in the substation, as well as transformers and other electrical equipment and the corresponding distribution device connection, most of the use of rectangular or circular cross-section bare wire or stranded wire, which is collectively referred to as the bus. The role of the busbar is to collect, distribute and transmit electrical energy.

Interpretation:

1, bus (bus line) refers to the use of high conductivity copper (copper row), aluminum materials made to transmit electrical energy, with the pooling and distribution of power products. [1] power station or substation to transmit power with the total wire. Through it, the generator, transformer or rectifier output of electrical energy to individual users or other substations.

2. Mathematically, it refers to a straight line that produces a surface according to certain conditions of motion.

Introduction:

With the emergence of modern engineering facilities and equipment, all walks of life of the rapid increase in electricity consumption, especially the emergence of many high-rise buildings and large-scale plant workshop, as the transmission conductor of the traditional cable in the high-current transmission system has been unable to meet the requirements of the parallel use of multiple cables to the site of the installation and construction of the connection has brought a lot of inconvenience. Plug-in bus ducts as a new type of power distribution conductor came into being, compared with the traditional cable, in the large current transmission fully reflects its superiority, and at the same time, due to the use of new technologies, new techniques, greatly

Reduced the bus ducts at the two ends of the connection and the separation of the mouth of the plug in the contact resistance and temperature, and the use of high-quality insulating materials in the bus ducts, which improves the safety and reliability of the bus ducts, making the whole system more complete. reliability and make the whole system more perfect.

Bus duct is a system composed of metal plate (steel or aluminum) for the protective shell, conductive rows, insulation materials and related accessories. It can be made into a standard length of the section, and every distance with plug-in junction box, can also be made into the middle of the feeder-type closed bus without junction box. For the feeder and installation and maintenance has brought great convenience.

The development of bus ducts according to the insulation method has been through the air-type splicing bus ducts, dense insulation splicing bus ducts and high-strength composite insulation splicing bus ducts of three generations of products. Busway can be set according to L + N + PE, L1 + L2 + L3, L1 + L2 + L3 + N, L1 + L2 + L3 + N + PE system of power conductors and protection conductors to meet the needs of the electrical load.

Technical features:

Plug-in bus ducts are AC three-phase four-wire or five-wire system, suitable for power supply and distribution with frequency of 50～60Hz, rated current of 100A～6300A, rated voltage up to 690V, especially suitable for low-voltage distribution system of industrial plants, mines, etc., and the power supply system of high-rise commercial/residential buildings, hotels and hospitals.

Common types:

In the electric power system, the busbar connects the current-carrying branch circuits in the power distribution device, and plays the role of gathering, distributing and transmitting electric power. Busbar according to the appearance and structure, roughly divided into the following three categories:

Hard busbar: including rectangular busbar, round busbar, tubular busbar and so on.

Soft bus: including aluminum stranded wire, copper stranded wire, steel core aluminum stranded wire, expanded hollow conductor, etc..

Enclosed bus: including *** box bus, split-phase bus and so on.

Product features:

1, performance:Busbar using copper or aluminum rows, its current density, small resistance, small skin effect, no need to reduce capacity to use. Small voltage drop also means small energy loss, ultimately saving the user's investment. As for the cable, because the cable core is multi-stranded fine copper wire, its root area is larger than the busbar of the same current level. And its "skin effect" is serious, reducing the current rating, increasing the voltage drop, easy to heat. The energy loss of the line is large and easy to age.

2,Security: the busbar's metal-enclosed shell can protect the busbar from mechanical damage or animal injury, the installation of the power distribution system using the insertion unit is very safe, the shell can be used as a whole grounding, grounding is very reliable, while the cable's PVC shell is vulnerable to mechanical and animal damage, the installation of the cable must first cut off the power supply, if there is an error occurs it will be very dangerous, especially cables should be Carry out on-site grounding work, unreliable grounding leads to increased danger.

Mechanical and animal damage, the installation of the cable must first cut off the power supply, if there is an error occurs will be very dangerous, especially the cable to carry out on-site grounding work, the unreliability of the grounding leads to increased danger.

3, installation: busbar consists of many segments, each length is both short and light. Therefore, the installation can be completed quickly by only a few people. The busbar is available in many standard parts and stock, allowing for quick shipment and saving time on site. Its compact "sandwich" construction reduces electrical space, thus freeing up more space for commercial use, such as rental or as a public **** place. Installing cables can be a difficult task. Because individual cables are often heavy, installation requires the collaboration of many people and takes more time to complete. In addition, due to the bending radius of the cable, more installation space is required.

4, line optimization: through the use of bus ducts, we can merge certain branch circuits and use plug-in boxes to transform them into one large bus duct. It can simplify the electrical system and get lower current values than multi-stranded lines. Thus it saves the cost of the project and is easy to maintain. For the traditional cable line, the cable will make the electrical system is extremely complex, large, difficult to maintain, so that a waste of engineering costs and installation space.

5 scalability: for the busbar, system expansion can be completed by adding or changing a number of segments, high re-utilization rate. In most cases, the cable can not be reused, because the length and route are different, if we want to expand the system, we have to buy new cables to replace the old ones.

6, plug-in junction box: plug-in switch box can be mated with air-type busway. There is no need to add other accessories when installing. Plug is the most important part, it is made of copper alloy stamping, heat treatment to enhance the elasticity, and the surface of the tin-plated treatment, even if the plug more than 200 times, can still maintain a stable contact capacity. Box set up a grounding point to ensure access to reliable grounding, the box set up a switching circuit, the use of molded case circuit breaker can be connected to the capacity of the line for overload and short-circuit protection.