What is a bus bar?

A bus bar is a long strip or bar of copper, brass, or aluminum used in electrical power distribution systems to conduct electricity within a switchboard, substation, or other electrical equipment.

Bus bars are typically made of highly conductive materials such as copper or aluminum to minimize resistive losses in the system. They are designed to carry high current levels and distribute electricity to various components or circuits quickly and efficiently.

Bus bars come in various shapes and sizes, including rectangular, circular, or tubular shapes, depending on the specific application and requirements of the electrical system. They are often installed in enclosures or cabinets to protect them from exposure to environmental factors and to ensure safety for maintenance personnel.

In addition to distributing power, bus bars can also serve as a grounding mechanism to prevent electrical shocks and protect equipment from damage in the event of a fault or surge in the system.

Overall, bus bars play a critical role in ensuring reliable and efficient electrical power distribution in various industrial, commercial, and residential applications.