Stock Red Color 99.9% Pure Copper Bus Bar

• Surface Treatment: Bar
• Certification: RoHS, CE, REACH, GB, JIS, ISO9001
• Material: Copper
• Shape: Rectangle
• Length: 6m
• Type: T2
• Model NO.: T2
• State: Hard
• Transport Package: Box
• Specification: 5*30
• Trademark: windoo
• Origin: China
• HS Code: 74091900
• Production Capacity: 5000t/Y

Product Description

Introduction:
Copper bars are widely used in electrical systems, especially in high-voltage electrical systems. They play an important role in the distribution and transmission of electricity. Copper is an excellent electrical and thermal conductor, and its physical and chemical properties make it an ideal material for electrical applications. In this article, we will introduce copper bars for high-voltage electrical systems from various aspects such as raw materials, dimensions, production processes, and applications.

Raw material:
The raw material of copper bars is electrolytic copper. Electrolytic copper is a high-purity copper with a minimum copper content of 99.99%. It is produced by electrolytic refining process and can remove impurities such as lead, nickel and iron. The purity of electrolytic copper is crucial for the performance of copper bars in high-voltage electrical systems. The higher the purity, the better the conductivity and heat dissipation.

Material	Copper bar T2	Aluminum bar	CCA bar
DC Resistance	0.017777	0.029	0.025
IACS	97%	59.5%	69%
Carrying capacity	100	78	86
Density  g/cm³	8.89	2.7	3.94
Surface contact resistance	small	big	small
Oxidize resistance	good	No well	good
creep	small	big	small
Electrical lifespan	long	short	long

Size:
Copper bars come in different sizes and shapes, depending on the application. The most commonly used size for high-voltage electrical systems is rectangular copper bars. The width and thickness of copper bars can vary, but the length is usually between 1 and 6 meters. The most commonly used widths are 20mm, 25mm, 30mm, 40mm, and 50mm, while the thickness ranges from 3mm to 12mm.

Production process:
The production process of copper bars includes multiple steps. The first step is to cast the raw materials into copper rods. Then squeeze the copper rod to reduce thickness and increase length. Then cold rolling the copper bars to achieve the required thickness. The final step is to cut the copper bar into the required length. According to the thickness and width of the copper bar, it can be cut, punched, tinned, and other treatments.

Application field:
Copper bars are widely used in high-voltage electrical systems, such as transformers, switchgear, and busbars. They are used to connect different electrical components and distribute power to different parts of the system. Copper bars are superior to other materials such as aluminum because they have excellent conductivity, thermal conductivity, and corrosion resistance. They also have higher melting points and are more resistant to mechanical stress.

Conclusion:
In short, copper bars are an important component of high-voltage electrical systems. They are made of high-purity electrolytic copper and come in different sizes and shapes depending on the application. The production process includes casting, hot rolling, cold rolling, and cutting. Copper bars have excellent conductivity, thermal conductivity, and corrosion resistance, making them the preferred material for electrical applications.