What is the difference between a dense busway and a fire resistant busway

Tianjin Tianhao bus duct is located in Tianyu Science and Technology Park, Beichen Development Zone, Tianjin, is a professional company specializing in the research and development, production, sales and service integration of bus series products. We can provide us with professional installation guidance, project management and design consulting, product maintenance and other services, core products: high voltage, wind energy, fire resistance, low voltage high protection, low voltage intensive and other busbars.

The dense busway is named after its structural form, and the fire-resistant busway is named after its use.

Dense busway refers to those busways that are tightly stacked between phases and phases, phases and shells, and use very thin insulating materials to complete the insulation between each other. It is suitable for AC three-phase four-wire, three-phase five-wire system, frequency 50 60Hz, rated voltage to 690V, rated working current 250 5000A power supply and distribution system, as auxiliary equipment for power supply and distribution equipment in industrial and mining, enterprises and high-rise buildings, especially suitable for the transformation of workshops and old enterprises.

The fire-resistant busway consists of a shell coated with fire-retardant coating, a busbar wrapped with fire-resistant mica tape and a bracket made of fire-resistant insulating material. There are multiple grooves in the bracket that are built into the busbar and hold them in place. There is a busway connection box at one end of the busway, and there is a busbar distribution box in the busway.

The fire-resistant busway has excellent insulation performance, which can be used continuously in the normal environment and for more than one hour in the fire environment, and can be applied to high-rise buildings and important facilities, replacing fire-resistant cables for power transmission and distribution.

The name of dense busway is named after its structural form, especially those busway that are tightly stacked between phases and phases, phases and shells, and use very thin insulating materials to complete the insulation between each other.

The name fire-resistant busway is named after its use, as the name suggests, it is used for higher fire protection requirements and requires a high fire resistance level of busway.

The structure of the fire-resistant busway can be dense or air-based, depending on what material it uses to be fire-resistant, so there is no direct connection between the two, but there will be an inclusive relationship.

Mainly in terms of air type and intensive type, the name of the production according to different factories is different, but Datong is the first two types.

Summary. Both flame retardant busway and fire-resistant busway belong to a type of busway in power distribution equipment, but their main difference is that their flame retardant and fire-resistant properties are different.

Both the skin-resistant Zheng Zheng combustion bus duct and the fire-resistant bus duct belong to a type of bus duct in the power distribution equipment, but the main difference between them lies in their flame retardant and fire resistance properties.

Flame retardant busway refers to the busway with flame retardant properties, usually using polymers containing flame retardants to slow down the spread of fire. In this way, in the event of a fire, it can reduce the degree of danger and danger of fire burning, and improve the safety of personnel and property.

The fire-resistant busway refers to the busway made of special Zhengshu materials with high temperature resistance and fire resistance, which can be loaded with cables, wiring harnesses and other equipment required for power distribution, and has good heat insulation, flame retardant and high temperature resistance, and can generally withstand 1500 high temperatures.

Therefore, the main difference between flame-retardant busway and fire-resistant busway is that its safety performance is different, the former can slow down the spread of fire cave disasters, and the latter can withstand high temperature and durability. In the inter-office use of SIGA, the appropriate busway type should be selected according to the specific needs and site requirements.

By understanding, flame retardant bus duct and fire resistant bus duct are commonly used bus duct types in the power industry, and their difference lies in their different lead and fire <>performance

Flame retardant busway is a kind of busway with flame retardant performance, and its shell material is usually made of flame retardant materials, such as PVC (polyvinyl chloride), etc. In the event of a fire, the flame retardant busway can effectively prevent the spread of the fire and reduce the damage of the fire to the equipment and the surrounding environment. However, its fire performance is relatively weak, and it can only resist open flames for a short time, and if it is smoked at high temperatures for a long time, it will also burn.

The fire-resistant busway has stronger fireproof performance, and its shell material is usually made of special fireproof materials, such as fire-resistant board, ceramics, etc. In the event of a fire, the fire-resistant busway can maintain a certain integrity and stability, and can resist high temperatures and open flames for a long time, so as to more effectively protect the safety of equipment and personnel. It should be noted that in order to ensure the safety and reliability of the power system, the selection of bus acacia dust tank materials needs to be selected according to the specific conditions of its location, environment and fire protection requirements, and design, installation and <>use in accordance with relevant standards and regulations

Summary. Hello! After the teacher's inquiry, it was found that the bus duct is generally composed of the beginning bus duct, straight bus duct (with jack and without jack), L-type vertical (horizontal) bending bus, Z-type vertical (horizontal) offset bus, T-type vertical (horizontal) three-way bus, X-type vertical (horizontal) cross-way bus, variable capacity bus duct, expansion bus duct, terminal head, terminal junction box, plug-in box, bus duct related accessories and fastening devices.

Here we recommend an air-plugged busway (BMC). Due to the soft connection of copper sheets between the joints between the busbars, the weather is humid in the south, and the oxidation between the joints is easy to occur, resulting in poor contact between the joints and the busbar, so that the contacts are easy to heat up, so they are rarely used in the south. And the volume between the joints is too large, the size of the horizontal bus segment is inconsistent, and the appearance is not beautiful enough.

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What is Busway? What are the different types?

Hello! I have seen the information on your side, it will take a little time to inquire about your question and text, please be patient Thank you for your understanding I wish you a smooth wind, smooth water and a good fortune God <>

Hello! After the teacher's inquiry, it was found that the bus duct is generally composed of the beginning bus duct, straight bus duct (with jack and without jack), L-type vertical (horizontal) bending bus, Z-type vertical (horizontal) offset bus, T-type vertical (horizontal) three-way bus, X-type vertical (horizontal) cross-way bus, variable capacity bus duct, expansion bus duct, terminal head, terminal junction box, plug-in box, bus duct related accessories and fastening devices. Here we recommend an air-plugged busway (BMC).

Due to the soft connection of copper sheets between the joints between the busbars, the weather is humid in the south, and the oxidation between the joints is easy to occur, resulting in poor contact between the joints and the busbar, so that the contacts are easy to heat up, so they are rarely used in the south. And the volume between the joints is too large, the size of the horizontal bus segment is inconsistent, and the appearance is not beautiful enough. If my answer is helpful to you, please also give a thumbs up (rate it in the lower left corner), look forward to your like, your support is also the motivation for my progress, and finally I wish you good health!

Have a good time! What is busway used for.

As a new type of power distribution, busway is being more and more widely used in the power system because of its advantages of small size, strong current-carrying capacity, easy installation, simple maintenance and safe use.

What is the busway used for?

Busway is a kind of power transmission equipment, just like cables, which is used for power transmission! It is mainly used in important power transmission and transformation places, such as the connection between transformers, generators and switchgears, or as the transmission of larger currents, and can be used for trunk bifurcation power transmission. It has a long service life, high safety performance, convenient feeding, easy installation and small installation space.

The specific use is to rely on the connection and installation of the connector section by section, and then use the support and hanger support or hanging to complete the installation!

Plugging fire-resistant busway:

Fire-resistant busway is used for high fire protection requirements and requires a high fire resistance rating. It consists of a casing coated with fire-retardant coatings, a busbar wrapped with fire-resistant mica tape and a bracket made of fire-resistant insulating material. There are multiple grooves on the bracket, which are built into the residual trapped core bus and fixed it.

At one end of the bus duct, there is a bus duct ruler liquid connection box, and there is a bus distribution box in the bus duct.

The fire-resistant bus duct has excellent insulation performance, which can be used continuously in the normal environment and for more than one hour in the fire environment, and can be applied to high-rise buildings and important facilities, replacing the fire-resistant cable for power transmission and distribution.

Structural performance

1. Adopt a reasonable "sandwich" phase wire tight stacking structure design, the bus duct is compact in appearance, small in size, and the bus system has the advantages of low impedance, voltage reduction and good dynamic and thermal stability.

2. The shell is composed of cold-formed thin steel profiles. The side plates on both sides of the plant are the original double-layer hollow structure of our factory, which effectively prevents high-temperature gas or open flame from directly entering the bus duct through tight hollow. The surface of the bus duct shell is galvanized and sprayed with fireproof coating (in case of fire, the coating can quickly expand on the surface of the bus bar at geometric speed to form a dense carbonized thermal insulation layer, seal all the gaps of the bus shell, and prevent high temperature from directly entering the inside of the busbar).

Busway is a closed metal device composed of copper and aluminum busbars, which is used to distribute large power to the various components of the dispersion system. Wires and cables have been increasingly replaced in indoor low-voltage power transmission trunk projects. Plug-in busway as a new type of distribution wire came into being, compared with the traditional cable, in the high current transmission can fully reflect its superiority, at the same time, due to the use of new technology, new technology, greatly reduce the contact resistance and temperature rise at the junction of the two ends of the bus duct and the junction of the distribution port, and the use of high-quality insulating materials in the busway, thereby improving the safety and reliability of the busway, making the whole system more perfect.

According to the classification of use, the bus duct is generally composed of the beginning bus duct, straight bus duct (two kinds of jacks and non-family grip jacks), L-type vertical (horizontal) bending bus infiltration line, Z-type vertical (horizontal) offset bus, Zhaoyaoqing T-type vertical (horizontal) three-way bus, X-type vertical (horizontal) four-way bus, variable capacity bus duct, expansion bus duct, terminal head, terminal junction box, plug-in box, bus duct related accessories and fastening devices.

The dense busway has three-phase four-wire, three-phase five-wire, and the current is divided into 300A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, 2500A, 3200A, 4000A, 5000A, and 6300A

There are many kinds of dense busway specifications and models, including 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A, and the cost of different specifications of the busway is different, so there are certain differences in the market. When purchasing, you must be clear about the size of the product you need, do not blindly choose the product, if the product you choose is not applicable, not only waste money but also affect the operation of the power system.

During the installation process, when the bus duct and the main bus bar of the two sections are connected, the two sections of the bus axis should be strictly kept on a center line, and the bolt holes of the two sections of the bus bar and the insulating board should be completely aligned. This is intended to prevent damage caused by the shear force effect of the insulating sleeve on the bolt during installation.

In the whole on-site installation process, each functional unit should be measured with a 500mft shake meter before installation, under normal circumstances, the insulation resistance of a single dense bus functional unit is greater than 20mft before it can be installed, and each time a functional unit is installed, the insulation resistance must be detected, and each time it is required to be greater than 20mft, but for the humid place in the south, the insulation resistance of the dense bus system with a line length greater than 100m shall not be less than 5 megaohms before it can be energized and debugged without load.

Hello, plug-in busway mainly has air type and dense, air plug-in busway and dense plug-in busway for AC three-phase four-wire or five-wire system, are suitable for frequency 50 60Hz, rated current 630A 5000A, rated voltage to 660V below for power distribution. Dense busway has more obvious advantages than air-type busway, such as small size, light weight, low energy consumption, fast heat dissipation, etc., so it is recommended to use dense plug-in busway.

Busway size: 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A, 2000A. Different specifications of dense busway ** are different, the current size is different, the conductor size of the bus duct is different, the size of the entire bus duct is also different, more importantly, the current size is related to the actual electrical load, if the selected current model is too small, it will cause overload, may burn the bus duct, so be sure to find a professional or manufacturer to design the current of the bus duct according to your actual needs.

The common codes of the models of the dense busway are CMC, CCX, XLC, etc., which are not much different in nature, some are different shell materials, some are different internal conductors, and the models of each intensive busway manufacturer can be different.