AERIAL BUNDLED CABLES
Aerial bundled cables (also known as aerial cables or simply ABC) are overhead power transmission lines. It is usually tightly bundled with several insulated phase wires and is used with bare neutral conductors. Aerial Bundled Cable (ABC) is an innovative concept for Over Head (OH) power distribution. When compared to conventional bare conductor OH distribution systems, ABC provides higher safety and reliability, low power losses, stability in voltage regulation and ultimate system economy by reducing installation, maintenance and operation cost. This system is ideal for rural distribution and especially attractive for installation in difficult terrain such as hilly areas, dense forests, coastal regions. These lines can also be laid without cutting or trimming of any trees. ABC is also considered to be the best choice for Power Distribution in congested urban areas with narrow lanes and by-lanes. Due to its insulation properties, it is convenient to lay even in densely populated areas with narrow gaps between buildings, where it is usually not possible to run bare conductors. Additionally, accidental electrocutions are avoided by the insulation of the cable. Underground cable installations have a capital cost ratio as high as 20:1 when compared to OH lines, thus giving this system a distinct advantage in cost effectiveness. Since the cables are clearly visible, the faults can be detected and rectified quickly and with ease. Damage due to water logging is also avoided as compared to underground cables.