Tubular Bus Bar - An Overview
Tubular busbar is also known as single busbar arrangement and as a hollow conductor having good convective conductivity, little loss and high heat resistance. It is typically used for lighter weight antennae such as wireless cell phones mast. These antennas are widely used in buildings and other open free-standing structures where high power conversion is needed. Single busbar arrangement is fixed with a dedicated narrow tube bus hardware for the mounting, since the strength of this joint is greatly reduced after welding (around 65% of the metal), due to the increased stress after mounting (around 70% of the metal). For those who have virtually any concerns with regards to where in addition to the way to use copper shunt, you'll be able to e-mail us with our page. This type of mounting provides additional strength than the two-sided mounting and also has the advantage that it can be easily replaced when damaged.
The busbar structure should have a proper covering so that the elements such as rain, dust, moisture, etc. cannot affect the performance and efficiency of the antennae. Covers for tubular busbar structure are usually made of fire-retardant polyolefin (FPR) or fiberglass, a material that is highly resistant to fire and flame.
Generally, FPR is considered better than fiberglass, though fiberglass is highly recommended in areas having high temperature rise. Single-handedly, FPR improves the heat dissipation capability, while increasing the resistance against corrosion of the entire tubular busbar structure. A thin fiberglass layer insulates against temperature changes, allowing the elements to dissipate faster and creating fewer problems in the process of conducting the signal.
Single-die busbars offer high-speed, high-quality single conductor wiring with an extremely long lifespan. Such single conductor busbars are often used in applications requiring very high rated current capacity; for example, computer brains, remote control units, and telephone sets. The element does not require any sort of cooling fan or lubrication system and thus produces superb heat, making it perfect for high temperature operation.
However, even though the element has high thermal conductivity, the surface area is quite small, meaning that high power dissipation is required. Thus, the element's low mechanical strength may prove to be a drawback in some situations. To solve this problem, manufacturers have come up with a series of rectangular bus bar and tubular insulated busbar that has smaller surface but with superior thermal conductivity. In fact, these products rival the conventional busbar/tubular bar in terms of electrical dissipation and electrical heat dissipation.
Unlike the tubular busbar and the rectangular busbar, these products do not have a single copper tube. The aluminum alloy tube used in the production of such busbars consists of sixty pieces. The sixty pieces of aluminum alloy tube are arranged in a series, thereby reducing the weight of each individual piece. The result is that this type of busbar has a very light material and a very thin aluminum alloy tube. A major advantage of using this type of tubing is that there is very little space to use for heat dissipation.
Since these products are low on the weight, they can be used in applications where high power dissipation is necessary. One well known example is the trucking industry. Even though aluminum is a very good conductor of heat, its low thermal conductivity makes it a poor choice for use in heavy duty truck wiring. On the other hand, the high temperature rise experienced by hot fluids flowing through copper tubes make these bars highly suitable for applications requiring high power dissipation and heat management. So, when it comes to high temperature rise, the tubular busbar enjoys a distinct advantage over conventional busbars.
Other typical applications of these lightweight busbars include applications requiring high voltage transformers and high frequency transformers. These too make use of a tubular design, which is capable of handling the power requirements for such applications by reducing the length of cables considerably. Moreover, since they are designed for lightweight usage, they can easily be made use of in air conditioners, generators, welding processes, power transmission and transfer transformers. The reliability factor inherent in the tubular design also helps in their wide application in industrial sectors.