Standard for refractory busbar manufacturing is not ordinary.
Fire-resistant busway is essentially a busway with strong fire resistance, typically able to withstand fire without damage for a period of time. Its fireproof performance is quite impressive, and this is largely due to its exceptional manufacturing standards. Depending on the usage environment, the fire-resistant materials used in the busway vary, and we have very high requirements for this, as no detail can be overlooked. Additionally, after the busway is formed, we conduct a series of fire-resistant performance tests, and we place a high priority on this aspect, as its fire resistance plays a crucial role in certain critical areas.
KaiAidi Electrical is headquartered in the beautiful paradise of Suzhou, with its manufacturing located on China's Electrical Engineering Island in Yangzhong. As a comprehensive and technology-oriented enterprise integrating research and development, design, manufacturing, sales, and service, we primarily serve the intelligent manufacturing and big data analysis sectors of the electrical equipment industry. We offer system solutions for efficiency, quality, cost, and big data challenges in the production process to a wide range of customers.
What are the applications of busbars?
Busbars are widely used in large-scale power supply buildings today. It's hard for many power systems to operate normally without busbars, as the current economic development is flourishing, and ordinary power supply equipment can no longer meet people's demand for electricity consumption. Copper bar punching machines are in demand, and the introduction of busbars effectively addresses this issue. So, let's follow the author to learn about the applications of busbars!
Busway slots are used in large-scale power supply equipment, effectively addressing issues of insufficient power supply, especially in the production and daily operations of large factories. The use of busway slots is highly necessary, and as technology advances, the application of busway slots will become increasingly widespread.
The application advantage of busbars lies in their compact size, which makes them extremely convenient for installation, whether it's transportation or operation. Moreover, busbars offer a large capacity, ensuring strong power supply and a shorter manufacturing time, allowing for significant time savings to focus on other tasks.
Kai'ai Di Electric is headquartered in the beautiful paradise of Suzhou, a manufacturer of copper busbar punching machines, with production and manufacturing facilities located on China's Electrical Engineering Island - Yangzhong. Kai'ai Di is an integrated, technology-oriented enterprise encompassing research and development, design, manufacturing, sales, and service. We primarily serve the intelligent manufacturing and big data analysis needs of the power equipment manufacturing industry, offering comprehensive solutions for efficiency, quality, cost, and big data during the production process for our customers.
Selection of sealed fire-resistant busway
During installation, the resistance value should be measured after each section of the closed busbar is installed. When connecting copper busbars, it's important to apply conductive grease, tighten the bolts securely, and avoid any tiny gaps between the copper busbars in the closed busbar slot. However, if the bolts are over-tightened (the author's experience is over 34 N), it can crush the insulating porcelain blocks at the fire-resistant closed busbar connections, leading to reduced insulation. If the bolt connections are loose, with a torque less than 27 N, there will be gaps at the busbar connections, causing poor contact and increased busbar resistance. When the torque is between 29 to 33 N, the copper busbar punching machine manufacturer ensures there are no gaps and the insulating porcelain blocks between the busbars remain intact. After the entire fire-resistant closed busbar is installed, perform a through-bar摇测 to check the insulation resistance. If the insulation resistance is less than 20 MΩ, it indicates that some bolts are too tight, and the insulating porcelain blocks between the busbars are broken, reducing the insulation resistance. In such cases, only a section-by-section search can locate the issue. When installing a closed busbar over 80 meters long, a busbar expansion joint should be installed. The busbar slot expansion joint is a busbar trunk unit with an axial displacement, installed in an appropriate position to accommodate axial movements caused by thermal expansion and contraction.
Busbars are divided into two types. One type has a high current carrying capacity but is not resistant to high temperatures, only operating at temperatures up to 200°C. It is commonly installed in lines for transmitting city electricity, and this type of busbar is also known as a dense busbar. The other type of busbar is capable of withstanding high temperatures, typically maintaining transmission operation for 1.5 hours under ambient temperatures of 700 to 1000°C, and its current carrying capacity is:iThe busbars can reach up to 5000A, and this type of closed busbar is called a fire-resistant closed busbar. The difference between the fire-resistant closed busbar and the dense closed busbar lies in the shell section. The shell of the fire-resistant closed busbar is coated with a fire-resistant paint film, while the dense closed busbar has a smooth, anti-corrosion coating with strong adhesion. Therefore, when designing fire protection and emergency power supply lines, fire-resistant closed busbars are used. Fire-resistant closed busbars require more space for installation, are not easy to bend, but have fewer accessories during installation. Additionally, they can prevent damage from small animals and are easy to protect during operation after installation. For example, a busbar with a current carrying capacity of 450-630A costs 1000 yuan/meter, with additional installation costs, totaling approximately 1100 yuan/meter. When installing fire-resistant closed busbars, it is important to use a megger to test the insulation resistance of the busbar and keep a record of the test and storage. The insulation resistance should be greater than or equal to 20M. This is because the fire-resistant closed busbar is 2.5 meters long per section.
Closed Busway: The closed busway consists of current-carrying conductors, a housing, and insulating materials. The bus housing should be made of cold-rolled steel plate, with sufficient mechanical strength and a protection rating of IP55. The current-carrying conductors should be made of copper materials for electrical purposes that comply with GB 5585.1-5585.3 standards. The contact surfaces of the conductor joints have been specially treated to ensure reliable contact, low heat generation, and safe operation. The insulating materials should have good insulation properties, resistance to aging, non-toxicity, and low smoke generation.
Zhejiang Copper Bus Punching Machine -凯艾帝电气有限公司 - Copper Bus Punching Machine Sales Provided by Suzhou Kaidi Electrical Co., Ltd. Suzhou Kaidi Electrical Co., Ltd. is a company specializing in "electrical components, electromechanical equipment and accessories, hardware and electrical appliances, pumps, valves." Since its establishment, we have adhered to the policy of "integrity first, steady operation," actively participating in the healthy competition of the market, and have earned a good reputation for "electrical components, electromechanical equipment and accessories, hardware and electrical appliances, pumps, valves" brands. We uphold the principle of "customer service first, user first," which has won the trust of customers for Kaidi Electrical in the manufacturing equipment of electronic and electrical products and established a good corporate image. Special Note: The pictures and materials in this information are for reference only. Please contact us for accurate information. Thank you!
