At the time of the cable tray installation, the wiring is not very convenient. This phenomenon can be avoided by using busway. The 5 advantages of using busway in the cable tray device are as follows:
1. Convenient tap connection of bus duct: the so-called plug-in bus duct, fireproof bridge is that it uses the plug-in method to tap the power supply of the main line to the branch line, so the tap is very convenient.
2. The bus duct can be strong in overload: the bus duct can be strong in overload, depending on the high working temperature of the insulation material it uses, and the data with a working temperature of 105 °C is selected for the insulation data used in the bus duct, and the radiation cross-linked flame retardant winding tape (PER) and radiation cross-linked polycarbon heat shrinkable tube with a working temperature of more than 140 °C have been developed. The perennial working temperature of the insulation materials used in the cable is generally 95 °C and 105 °C, so the overload of the bus duct can be much greater than that of the cable.
3. The heat dissipation function of the bus duct is good: the insulation material of the cable is not only the insulation data, but also the heat insulation data, so when the power cable is laid in the bridge, it is allowed to lay 2 layers, and it is considered to be a heat dissipation problem. The bus duct uses air conduction to dissipate heat, and through the tightly touched steel shell, the heat is emitted, so its heat dissipation function is better than the cable ratio, and the cable heat dissipation function is outstanding.
4. The bus duct can avoid overload fire, the insulation layer and sheath of the ordinary cable will be incinerate, and the flame retardant cable will also be incinerated under the flame, as long as the flame leaves the fire-resistant cable will not be incinerated, but the price is expensive, as long as the fire protection and other power supplies that are not allowed to fail the power supply are fire-resistant cables. The busway shell is made of steel and will not be incinerated, even if the insulation material of the copper bar is burned, the flames will not escape to the outside of the busway.
5. Convenient maintenance of bus duct: bus duct almost no maintenance, daily maintenance is usually to measure the temperature rise of the shell and grommet, the temperature rise of the connector of the inlet box, etc., if the grommet bolt is selected 4.8 grade, it needs to be fastened regularly, and if the 8.8 grade high-strength bolt is selected, it is not necessary to consolidate it from time to time.
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Busbar system reverse operation – Wiener
(1) For the charging of the spare bus, when there is a bus tie circuit breaker, the bus tie circuit breaker should be used to charge the spare bus. At this time, the maintenance device of the bus tie circuit breaker should be fully invested, and the relevant maintenance value and time limit should be changed to a small size, so that when there is a problem with the bus, the bus tie circuit breaker can be quickly tripped, cut off...
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The service life of the lighting power busway – Wienal
The system consists of a current box, a bus body, a branch plug and device accessories.
When the heat dissipation of conductive copper strip is effectively improved, the contact between the copper strip and the inner wall of the tube is reduced, the insulation resistance and anti-aging ability of the tube body are strengthened, and then the service life of the tube body is extended. The longevity of the tube far exceeds ...
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The advantage of intelligent energy-saving dense busway - Wiener
Intelligent, energy-saving, dense busway, it is capable of generating outward electromagnetic wave radiation. It can be said that the line loss in the process of power transmission is greatly reduced, which can save energy and reduce electromagnetic radiation pollution. In addition, the product is also specially equipped with a radiator, which increases the heat dissipation area of the conductive bar and accelerates the ...
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Technical features of Wiener closed busbar
The out-of-phase shut-off bus adopts a fully connected structure, with optimized design, reasonable design, stable and reliable operation. Choose either natural cooling or forced air cooling.
The out-of-phase closing bus is to support the conductors of each phase bus with insulators and close them in their respective shells, and the shells themselves are electrically connected, ...
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Wiener busway plug-in box wiring method
The bus duct bracket has to be firmly installed, and the bus duct should be correctly placed according to the segment sequence number, phase sequence, number, direction and device mark, and when the sections are connected, the adjacent section of the bus duct should be aligned, and the conductor and shell of the bus duct should not accept mechanical stress after the connection.
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The difference between busway and busbar - Vernal
The busway and busbar are actually closed one after the other, and the other is not closed.
Closing the busbar is referred to as the busway, which means that the busway is the vest that closes the busbar, and the closing busway and the busbar refer to the same thing.
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Low-voltage dense busway uses and applications
Densely insulated bus duct (hereinafter referred to as bus duct) can be communication three-phase three-wire, three-phase four-wire, three-phase five-wire system, frequency 50-60Hz, voltage to 400V, rated operating current of 250-5000A, mainly as a new type of power supply and distribution equipment in industrial and mining, enterprises and high-rise buildings. Mother with insertion day ...
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The connection method of the tubular busbar
In the industry, tubular bus bar can be described as one of the more common equipment, with high mechanical strength, good insulation, wide range of application and other characteristics of many enterprises. So do you know what are the ways to link tubular busbars?
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The application of Wiener bus system wiring technology in box transformer
The bus system is to directly connect the components to the bus, the bus does not need to be perforated, at this time, the bus is not only the conductor of the component, but also the support of the component, the current can reach 2500A, so that the box transformer function has the following progress:
1 ...
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There are several main ways to wire the busbar - Vernal
(1) Single bus. Single busbar, single bus segment, single bus plus bypass and single bus segment plus bypass.
(2) Tandem bus. Double busbar, double bus segment, double bus plus bypass and double bus plus bypass.
(3) Three busbars. Triple bus, triple bus section, triple bus section ...
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Phase of the busway in the low-voltage incoming line – Wiener
According to the requirements of the relevant specifications, the placement of the three-phase busbar can be roughly divided into two kinds according to the model of the low-voltage distribution cabinet and the different manufacturers: horizontal placement and placement of the down wire, according to the order of placement.
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Fast protection of medium and low voltage busbars – Wienal
1.It is necessary to install arc light maintenance
Arc maintenance in foreign countries has nearly 20 years of history, the first set of maintenance devices in 1995 has been put into operation, China's previous imported units in the introduction of foreign complete sets of arc light maintenance (such as Guohua Tianjin Panshan Power Plant), domestic units ...
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Introduction of busbar, busway and busway bridge - Vernal
generatrix
In the field of electricity, the busbar can also be called the busbar, busbar, etc., most of which refer to the busbar or power supply trunk in the high and low voltage cabinet, which is used to connect multiple electrical lines. The system will install various interface cards through the bus, and transmit various data to the devices connected to the interface cards.
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Wiener bus differential protection switching operation
1. Whether the scale of bus differential maintenance is determined, and whether the maintenance goal is unchanged
Generally, differential maintenance includes bus differential maintenance, transformer differential maintenance, generator differential maintenance and line differential maintenance. The basic principle of achieving differential maintenance is common, i.e. on all sides or on each side...
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Low-voltage cabinet for capacitance compensation – Wienal
Capacitor compensation is indispensable in low-voltage cabinets, so what is the effect of capacitor compensation. The meaning of this is that it acts as a capacitor. Let's take a look at the principle of capacitor compensation first, when the capacitor is compensated, the capacitor and the load are connected in parallel, and the capacitor is like a bin. When the load increases, the power supply has internal resistance, so that ...
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Precautions for installation of Wiener busway
1. Before the bus duct installation, it should be ensured that the electrical shaft, substation and distribution room, the decoration project of the place through which the bus duct passes, and the heating and ventilation project are all completed to ensure that the bus duct is not polluted. The reserved holes and embedded parts of the floor and wall should be embedded and reserved according to the position required by the design. The functions of the busway are single ...
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Wiener looks at the busway drawing method
First, in the CAD system drawing, it is a plan of the bus duct, and two parallel polylines can indicate the bus duct.
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Busbar system in detail – Vernal
1. In the 60mm bus system, the square fuse type blocking switch can be directly hooked.
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A brief introduction to the classification of busway - Wiener
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Comparison of several insulated tubular busbars
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