When it comes to cable tray installation, 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 of bus duct: the so-called plug-in bus duct and fireproof bridge are the way it uses plugging to tap the power supply of the main line to the branch line, so the tap is very convenient.
2. Strong overload capacity of bus duct: strong overload capacity of bus duct depends 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 over-support of the insulation material used in the bus duct, and the radiation cross-linked flame retardant winding tape (PER) and radiation cross-linked polyhydrocarbon heat shrinkable tube with a working temperature of more than 140 °C have been developed. The perennial working temperature of the insulation material used in the cable is generally 95 °C and 105 °C, so the overload capacity of the bus duct is much greater than that of the cable.
3. The heat dissipation function of the bus duct is good: the insulation data 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 agreed to lay up to 2 layers, and the consideration is the heat dissipation problem. The bus duct uses air conduction to dissipate heat, and through the close-contact steel shell, the heat is released, so its heat dissipation function is outstanding compared with the cable.
4. The bus duct can avoid overload and fire, the insulation layer and skin of the ordinary cable will be incinerate, and the flame-retardant cable will also be incinerated under the flame, as long as the flame is not incinerated after the flame is separated, 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 incinerate, the flames will not escape to the outside of the busway.
5. Convenient protection of bus duct: bus duct simply does not need to be protected, daily protection is usually to measure the temperature rise of the shell and grommet, the temperature rise of the joint of the incoming 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 necessarily firm.
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The use of busbar systems – Wiener busbars
First, this kind of small electrical equipment is a novel concept, adopting the "non-hole lap technology", and the electrical equipment is directly installed on the confluence bus system to form a power distribution or control loop. The representative creations are busbar device fuses and fuse load disconnectors.
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Introduction to the Wiener 3-pole adapter
1、32590
EQUES®30Compact
Bus adapter 32 A
1 adjustable support rail
45 x 160 with conductor AWG 10 (6 mm²)
2、32591
EQUES®30Compact
Bus adapter 63 A
1 ...
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Power system bus wiring method - Vernal
(1) Single busbar. Single busbar, single bus segment, single bus plus bypass, and single bus segment plus bypass.
(2) Double busbar. Double-busbar, double-busbar segmentation, dual-busbar plus bypass, and dual-busbar segmentation plus bypass.
(3)3/2 wiring ...
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Operating regulations for the use of busbars - Wiener
1. Charging to the bus should be carried out with a switch (bus tie, bypass or line switch) with snap-action maintenance that reflects various types of faults. Before charging the bus, it should be considered whether the system may be unstable if the charging bus trips, and if necessary, the active power flow of the relevant line can be reduced. ...
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Technical requirements for busway system – Wiener busbar
1. The conductor of the bus bar is a high conductivity TMY electrical hard copper bar rolled by T2 electrolytic copper, and the purity of copper must be ≥ 99.95%, and copper-aluminum alloy or other mixed alloy non-pure copper conductor materials shall not be used, and the copper plate is tin plated on the full length.
2. The raw material of the neutral wire and the phase wire in the bus system is the same.
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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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Composition of medium and low voltage bus protection - Wiener
On the medium and low voltage side of the main transformer, the bus tie switch and the original electromagnetic relay maintenance DC circuit of each outlet, the PLC is used for logical comparison to determine whether it is a fault in the maintenance area or a fault outside the area.
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Considerations for purchasing a busbar system – Wiener
The bus system plays a very important role in the practice of construction, and for products such as the bus system, the relevant items can not be ignored, so that we can better use the practical value of this type of product. Generally speaking, when we are purchasing a bus system ...
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Common Bus Application Considerations – Wiener
In the common DC bus system of multiple inverters, especially the common DC bus of inverters of different power levels, it is very important that the connection between the bus bars is maintained by fuses. When one of the inverter power equipment in the common bus is damaged by short circuit breakdown, the other inverter bus ...
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Wiener enclosed busbar installation
Closed busway is a busbar system composed of metal plates (steel plates or aluminum plates) as protective shells, conductive strips, insulating materials and related accessories. It can be made into a piercing closing bus with spaced piercing junction boxes, or a feed-in closing bus without a junction box in the middle. ...
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Dense busbar installation – Wiener
1. Requirements for civil engineering before installation
1) The foundation, structure, reserved holes and embedded parts all meet the design requirements of electrical equipment.
2) After the construction of the roof and floor slab is completed, there shall be no leakage.
3) After the indoor ground construction is completed, mark the ground leveling line on the well wall.
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A detailed description of the Wiener comb busbar and connection terminals
The Wiener comb busbars and connection terminals are available with QUADRON®CrossLinkBreaker in size 000/00
Recommended installation: Wire entry at the lower end of the NH-fuse disconnector through the comb busbar.
In the installation position and ...
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Difference Between Grounding Electrode and Grounding Busbar – Vernal
The grounding electrode is a discharge channel that connects current or voltage to the earth, and in order to reduce the grounding resistance, the electrodes that form the grounding grid are generally used in groups.
The grounding bus refers to the connecting wire that connects the current or voltage to the grounding grid, or the conductor that connects the grounding electrode into one.
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Connector box features of the busbar system – Wiener
1. Rapid device
Today, busway adapters cannot be flipped at the time of installation, and the two busway sections are not out of phase when flipped when connected.
2. High protection level
The coupling box has a protective function, ...
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Tubular busbar structure layout - Wienal
1. The tubular bus is in the form of a split-phase fully insulated shielded copper tube bus.
2. The cylindrical capacitor structure is selected, and the voltage equalizing capacitor layer, the main insulation layer, and the bottom layer of the shielding street are set between the conductor and the insulating sheath, and the shielding grounding layer on the outside is connected to the grounding grid. The quantity of each layer is determined by the seller.
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Standard parameters of busway specification - Wiener
1. The standard scale of the bus duct
This specification regulates the terminology, skill requirements and test methods of the insulated bus trunk system (bus duct) and its plug-in feed box (hereinafter referred to as the feed box).
This specification specification applies to additional voltage AC to 660V...
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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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Difference Between Busbar and Busway – Vernal
The connection of voltage distribution devices at all levels in the substation, as well as the connection of electrical equipment such as transformers and corresponding distribution devices, mostly use bare wires or stranded wires of rectangular or circular cross-section, which are collectively referred to as busbars.
The role of the bus bar is to collect, distribute and transmit electrical energy. Because the busbar ...
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What are the modules of the Wiener bus system?
The modulus of the bus system is 40mm, 60ram, 100/185mm; The bus cross-section is rectangular, double "T" (i.e., "H" shape) and three "T" (i.e., 'state') shapes; The bus system can be three-wire, four-wire or five-wire, or even seven-wire, of course, it should be determined according to the needs ...
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Introduction to Laminated Busbar System – Wiener
In the power system, the bus connects the various current-carrying branch circuits in the power distribution device together, and plays the role of collecting, distributing and transmitting electric energy; According to the appearance and structure, the bus bar is roughly divided into three categories: hard busbar, soft busbar and closed busbar.
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