A Textbook of Electrical Technology Volume 3 By S Chand Pdf The entire system is made up of network of wires or conductors which communicate power from central channel to the customer’s premises. In the bus-bars, the electricity is carried by lots of feeders that radiate to several pieces of a town or area. These feeders provide electricity at particular points to your distributor that runs across the several streets. The factors FF, as shown in the figure, are called feeding factors.
Power links to the numerous customers are given from the provider instead of straight in the feeder. The cables that communicate power from the distributor to the customer’s premises are called service mains(S). Occasionally if there’s only 1 distributor in a neighborhood, many sub-distributors (SD) branching off by the distributor are utilized and support mains are now attached to them rather than distributor as shown in the figure.