Introduction to bus duct components and product advantages

Posted by bruce zhu on October 14th, 2022

Introduction to bus duct components and product advantages

Insulation support it is an integral part of bus duct equipment and is used to support conductors in bus duct equipment. Mounting plate a plate used to support various components and suitable for installation in a complete set of equipment. Installation frame frame used to support various elements and suitable for installation in a complete set of equipment. Shell The shell is a component that protects the equipment from some external factors and prevents the equipment from being directly exposed in all directions, with a protection level of at least IP30. Door: a hinged or sliding cover plate.busbar bending machine Cover plate refers to the upper and lower shell surface of the enclosure, usually a part of the bus duct equipment, which is used to cover the opening on the enclosure. It shall be fixed with screws or similar methods, and it is generally not disassembled after the equipment is put into operation. Side plate refers to the left and right shell surfaces of the enclosure, usually a component on the bus duct equipment, which is used to cover the opening on the enclosure. It shall be fixed with screws or similar methods, and it is generally not disassembled after the equipment is put into operation. Insulating partition a part used to protect direct contact from all directions at the entrance and electric arc from switching devices and similar devices. Live parts conductors or conductive parts used for energizing in normal use, including neutral conductors, but excluding neutral protection conductors. Exposed conductive part a kind of accessible conductive part of electrical equipment, which is usually not electrified, but may be electrified under fault conditions. Protective conductor a conductor that is electrically connected with the following parts to prevent electric shock hazard. Special reminder: the cable is represented by the section, and the bus duct is represented by the rated working current (generally speaking, 400A bus duct). The section of domestic products with the same 400A is 240mm, and some are only 180mm. The difference is too large, so some are 1.4 yuan/ampere x meter, 2.0 yuan/ampere x meter and higher. It is recommended that the manufacturer provide instructions on the insulation method and mark the bus specifications to avoid being cheated.

fireresistant

The fire-resistant bus duct is specially used for power supply of fire fighting equipment and cannot be used for other purposes. Therefore, this kind of bus has good heat resistance and heat insulation, and the heat energy of bus duct cannot be distributed, so it cannot be used at full load for a long time. Except for fire-resistant bus duct, other buses shall not operate at full load for a long time. The difference between fire-resistant busbar machine and fire-resistant bus duct: the shell and thermal insulation layer of fire-resistant bus duct are made of fire-resistant materials with high temperature resistance ≥ 1100 ℃ and insulating materials with high temperature resistance ≥ 300 ℃. The fire-resistant time of this product is 60 minutes, 90 minutes, 120 minutes, and 180 minutes. It will burn when the temperature reaches 920~1050 ℃, and it can run at full load for more than 8 hours. Fire proof bus duct: common bus duct or bus duct shell with fire smoke spread shall be provided with fire compartment, and some shells shall be coated with fire retardant coating, so that the heat energy of fire can be transmitted to the interior within the specified time, the bus duct can operate normally, the fire combustion temperature can reach about 800 degrees, and the fire resistance time is 30 minutes, 40 minutes, and 60 minutes respectively.

Product benefits

As the bus duct uses copper bar or aluminum as the conductor, it has a large current capacity and good electrical and mechanical properties. In addition, busbar bender it uses metal trough as the shell, so it has the advantages of non combustion, high safety and reliability, and long service life. Compared with traditional power distribution, the equipment occupies a significantly reduced area and has a beautiful appearance, which is very beneficial to the construction and power distribution of large buildings. To sum up, the bus duct has the following characteristics: 1 The current capacity can be very large; 2. The voltage drop is very small; 3. Strong short-circuit load capacity; 4. High reliability and long service life; 5. High safety; 6. The equipment of power distribution system can be added or changed freely; 7. Small overall dimensions; 8. Light weight, easy operation; 9. The connection is very simple (just like the connection of water pipes, sections are connected into a system through tees, elbows and other joints), as shown in the figure below; 10. Simple construction and inspection; 11. It has modern beauty.

Low voltage bus duct application

FM series bus duct is a three-phase three wire, three-phase four wire and three-phase five wire power supply and distribution system with rated working voltage of 660V and below, frequency of 50Hz (or 60Hz capacity saving) and rated current of 60A~5000A, which is based on professional technology from the United States and Japan. The product has the advantages of small volume, large transmission current, safety and reliability, flexible installation, no interference between power distribution construction and infrastructure construction, reasonable design, complete specifications, etc, FM series low-voltage bus duct is the most ideal power supply equipment for modern large and medium-sized enterprises, high-rise buildings, imported work projects, experimental bases and other places.

Normal operating conditions

1. Indoor use for continuous work.

2. The ambient air temperature is not higher than 40 ℃, and the lower temperature limit is - 10 ℃.

3. The relative humidity shall not exceed 90% (when the ambient air temperature is+20 ℃).

4. When the working conditions have special requirements, our factory can manufacture according to the special requirements.

Main technical parameters

Rated voltage: 660V.

The rated frequency is 50Hz (or 60Hz).

Insulation resistance value: the insulation resistance of each section of bus duct unit shall be greater than or equal to 20 megaohms. When installing, users shall check the insulation resistance value before installing.

For insulation strength, each section of bus duct unit shall be subject to 50Hz3750V/Min power frequency withstand voltage test before leaving the factory.

Short circuit strength (capacity to bear short circuit strength): the bus duct can withstand the thermal stress and electric force generated by the short time withstand current and rated peak withstand current specified in Table 2

Like it? Share it!


bruce zhu

About the Author

bruce zhu
Joined: February 8th, 2021
Articles Posted: 126

More by this author