Xinxiang plug bus

With the emergence of modern engineering facilities and equipment, and all walks of life electricity consumption increased fast, especially in the many high-rise buildings and large plant workshop appears as the traditional cable transmission lines are now high-current delivery system can not meet the requirements, the parallel use of multiple cables connected to the construction site installation a lot of inconvenience. Plug-in busbar conductors have emerged as a new power distribution, compared with traditional cable Busway, when a large current is supplied fully reflect its superiority, while the introduction of new technology, new technology has greatly reduced The busbar at both ends of the connection port tucks and sub-line contact resistance and temperature, and is used in busway in the quality of the insulation material, thereby improving the safety and reliability of busbar, so that the whole system more perfect . Edit this segment is characterized by a series of characteristics of busway infrastructure, commodity production, small size, large capacity, design and construction cycle is short, easy assembly and disassembly, not burn, safe and reliable, long service life. Busway product is suitable for AC 50Hz, rated voltage 380V, rated current of 250A-4000A three-phase four-wire, three-phase five-wire power supply system project. Edit this paragraph type, performance and advantages of enclosed busbar (referred busways) bus system is made of a metal plate (steel or aluminum) for the protection of housing, conductive row, insulation materials and parts thereof. It can be made at some distance with a plug-type connector junction box enclosed bus, it can also be made of closed-end intermediate feeder bus without a junction box. In the high-rise building power supply system, power and lighting circuits are often provided separately, busbar as the power supply trunk line in the electric shaft mounted vertically along the wall or a trip to trip. By purpose from the beginning to end of a trip Busway Busway general, through busbar (zoning jack and jack without two kinds), L-type vertical (horizontal) bend through the bus, Z-type vertical (horizontal) bias bus, T type vertical (horizontal) tee bus, X-type vertical (horizontal) four-way bus, varactor busbar, expansion busbar, terminal head, terminal junction box, plug box, Busway related accessories and fastening devices and other components . Busway by insulation can be divided into air-type plug busbar, plug-intensive Busway insulation and high-strength Busway plug-three. Its structure and purpose into dense insulation, air insulation, air additional insulation, fire-resistant, resin insulation and trolley busway; its shell material into the steel shell, aluminum alloy casing and steel and aluminum mixed housing busway. Edit product development of this segment of the first generation of air-type air type busbar (3) since the mid-50s of last century, with Beijing as the representative Baizhifang airport electrical plant, the conductive row with an insulating liner supported within the housing by air dielectric insulation. Phase distance 50mm. Intensive mid-1980s the second generation of the last century, to Zunyi Changzheng Electric Control Equipment Factory as the representative of the conductive row cover after both sides secured together with an insulating material. Insulation: Teflon tape, the working temperature of 200 degrees, gas (octafluoroisobutene and fluorine phosgene) to produce people to death when the bus disadvantage pyrolysis intensive PVC heat shrink tubing, the quality varied greatly, some manufacturers inexpensive product, measured insulation reach B level. Irradiation crosslinked flame around the band (PER) is currently a good thing, working temperature 150, good waterproof performance, flexible, wrapped more closely. A special form of the bus produced in the second generation bus evolution, namely intensive bus air jack. Due to changes in technology, and now basically become intensive bus intensive jack that overall intensive Busway. The third generation of composite insulated conductive row busbar except itself with an insulating layer, but between each phase there is a certain air dielectric insulation. In each of the insulating refractory insulation Busway kinds elbow by curing technology. Straight section with MT-7-3 rubber sleeve. Curing insulation technology: fast solid insulating material CZ260 powder, using quaternary crosslinking between the insulation layer and the conductive row without gap. Its thermal performance, moisture resistance, insulation reliability are excellent. But because of the relatively high cost of second-generation bus and not widely promoted. Other related cases: 1, 1995 and 2000 national supervision and inspection results, the domestic busbar pass rate rose to 71.4% 57.14% 2, busbar welding: L-shaped (flat bend) and T-shaped and other busbar, and are based on busbar welding current GB ENJ waterproof bus [1], there are no standards, it said that in considering weld inspection, (according to GB3323 of Ⅲ class standard) 3, now has a high degree of protection IP54 or more, and solve the water problem. Shanghai Waigaoqiao using the domestic IP68 outdoor busbar, 4, advantages and disadvantages compared to the cable trunk is simply the power supply and power supply radiation difference. Edit this paragraph describes insulating support member is an integral part of the busbar ---- equipment, equipment used to support the busbar conductors. ------ Mounting plate for supporting the various elements and suitable for equipment installed on board. ---- Mounting frame for supporting the various elements and adapted to be mounted in a framework of complete sets of equipment. -------- Shell casing to protect equipment from some external factors, and the equipment can not be a direct part of the solution and in all directions, the protection rating of at least IP30. ---------- A tape door hinged or sliding cover plate. -------- Cover the upper and lower surface of the housing shell, usually it refers to a member busbar device, using it to cover the opening of the housing. Screws or similar means to secure the device into running generally no disassembly. -------- Side around the shell surface of the housing, generally refers to a member busbar device, using it to cover the opening of the housing. Screws or similar means to secure the device into running generally no disassembly. Insulating spacers ---- direct contact from the entrance to each direction and an arc from the switching device and similar devices will be a member protection. ---- Live parts in normal use for energized conductors or conductive parts, including the neutral conductor, but does not include neutral protective conductor break. Exposed conductive parts of electrical equipment --- one accessible conductive parts, it is usually not charged, but may live in case of failure. Protective conductor ------- To prevent shock hazard with the following components of a conductor electrically connected. Special note: The cable cross-section is represented in accordance with, the rated operating current busbar is represented (generally say 400A busbar) 400A in the same country, some products now sectional 240mm, some only 180mm. That much difference, so there are some 1.4 yuan / An x m, 2.0 yuan / An x meters, there is a higher recommended insulation require manufacturers to provide a description of the way, and marked the bus specifications, to avoid fooled. Edit this paragraph fire busbar fire busbar is designed for firefighting equipment into an outlet, and can not be used for other purposes. As the result of bus heat resistance, insulation, heat can not be distributed busbar, it is not long-term use at full capacity. In addition to fire busbar, the other bus can be long at full capacity. The difference between fire busbar and busbar fire: fire busbar casing and insulation with high temperature ≥1100 ℃ fireproof materials and high temperature insulation material ≥300 ℃, the product resistance time of 60 minutes, 90 minutes, 120 minutes, 180 minutes species, when the temperature reaches 920 ~ 1050 ℃ high temperature will burn, full load operation up to 8 hours. Fire Busway: Common busbar or spread of fire smoke fire barrier busbar housing plus some shell fire retardant paint coating, can reach a fire within the specified time to convey heat to the interior, busbar run correctly, the fire burning temperature reaches 800 degrees about, the refractory time is 30 minutes, 40 minutes and 60 minutes. Heat Edit this paragraph reinforced aluminum alloy shell Busway aluminum magnesium alloy shell design shell profiles, from both sides of the plate and the bottom cover is made on the side of the heat sink design and dovetail conducive Busway as well as strengthen the shell rigidity, but also easy to install, while reducing the weight of the busbar, can be as large span design and reduce the mounting bracket. Screwless assembly technology on housing, under cover and side panels connected without screws, rivets and without welding instead of using the hook, groove, not opening due to the housing, water, gas dust get in, improve the degree of protection, and appearance is very beautiful. Conventional whole earth PE protective earth wire is placed within the busbar side, due to electromagnetic induction in protected line fault currents induced by the measurement calculation processing even higher than 50 percent, while the three-phase conductive row spacing from PE ranging inductance did not wait, the longer the line, the fault current, three-phase serious imbalance. Use good conductive properties of non-magnetic aluminum shell as protective ground, surrounded by conductive row around, because it is as close to a three-phase busbars can be achieved reactance minimum and to protect ground and equidistant from the three-phase busbars , the same reactance. Whether this is for a relatively short-term or short-circuit fault, the grounding PE lined than individually set. International Electrotechnical Commission therefore published and promoted wire row (busway) to housing as a grounding conductor. The housing and the PE row as one, but also to avoid the undesirable phenomenon housing and PE connections of long-term corrosion, poor contact grounding continuity. Provides in Article 7.4.3.1.5 Busway mandatory standards GB7251.1 of 7.4 shock protection, the measures adopted to ensure that the circuit if there is a lasting good conductivity and current carrying capacity sufficient to withstand equipment flowing through the ground fault current, then assemble complete sets of equipment of various metal parts are considered to be able to effectively ensure the continuity of the protection circuit. 7.4.3.1.7 specified in Table 4 in the protective conductor cross-sectional area. If the housing as part of the protection circuit used, the minimum cross-sectional area and the load area which should be specified in 7.4.3.1.7 7.4.3.1.5 (e) as specified in the conductive capacity It is equivalent. Therefore the use of shell do PE row overall grounding techniques are valid and worthy of promotion. Corrosion resistance strong anodized aluminum shell 10u galvanized much better corrosion resistance. Japanese steel shell than the long-term atmospheric different grades of aluminum alloy sheet and galvanized copper exposure test showed that the corrosion depth is about one twentieth of the former of the latter. Reliable insulated manner with an insulating layer of conductive rafts, phase and phase as well as a certain air gap between the shell and the conductive row there DMC insulation material compacted pad, triple insulation, insulated busbar ensure foolproof, especially in the wet Under environment even more of its advantages. Large span length linear design Busway being subject to transport capacity constraints, its design and production capacity without length limitations, to meet the needs of the project, especially for large-span modern factories busway. Because of its stiffness, can not be installed between the hanger 6m span. Easy installation due to the consistent full-length dimensions, the internal structure of symmetry, are arranged on either side of L1, L2, L3, N, thus inverting it easy and convenient to install. Edit this paragraph EN Series Busway Scope 1, EN Series Busway for AC three-phase four-wire, three-phase five-wire, frequency 50-60HZ, rated voltage up to 6 EN-intensive bus 60V, rated working current 250A-5000A The power supply system, assume the task of distribution for low voltage distribution panel with large, medium-sized load of connections, mainly used in modern workshops, factories and high-rise buildings. 2, structural features 1) Suitable for large span installation of the series busbar shell is made of roll forming, small size, attractive appearance, greatly improve the plant load capacity, can load 60Kg 6m bus in the center of the span, deflection of not more than 10mm. 2) extremely easy to install and use a single bolt coupling with automatic compensation of clamps, adjustable and strong, so Busway during the installation process is very convenient, flexible, and significant savings in installation time 3) extremely safe (1) separation of air insulation type, its white security clearance and creepage distances much larger than the standard. (2) Internal insulation parts are made of high strength plastic, increase resistance to movement of the busbar, the special structure thermally stable capacity (3) joint use can prevent misuse installation. (4) provided at the safety socket protective shield only when the protective shield opened, the plug can be inserted into the box. Jack usually do protective shield can be pulled off and add seals locked into the socket at preventing dust or foreign matter from the meter while preventing tap into the line side power. Improve the protective properties of busbar to prevent misuse, so that the safety performance of the bus has been greatly improved wide box without removing the plug when plugging in date is always the first connected to the ground, after disconnecting. 4) wiring flexible busbar jack modular design, the system can be set aside plenty of sockets. Ensure that the load in the shortest possible path connecting busbar unit, for adding workshop equipment, mobile and workshop refurbishment, are not changes in the bus system. 5) The interchangeable design of the series busbar seven current levels, using only three class times of the shell, so that when the system is adjacent to the current level by converting capacity, without replacement housing. Busway is characterized by a series of supporting, commodity production, small size, large capacity, design and construction cycle is short, easy assembly and disassembly, not burn, safe and reliable, long service life. Busway product is suitable for AC 50Hz, rated voltage 380V, rated current of 250A-4000A three-phase four-wire, three-phase five-wire power supply system project. Professional to do Busway, plug bus, transformers and distribution cabinets. With base cabinet and power distribution cabinet busbar connection busbar bridge, 1000A --- 4000A, double connection single row connectors, to help you solve the various problems ! Li 13,343,731,962 15,037,191,838