⚡️ Conductors (cables or aerial wires): It is very obvious that wires are the only way to distribute electricity in power transmission networks!
⚡️ Base : Currently, in aerial electricity distribution, hollow and light foundations, made of materials such as steel, fiberglass, and aluminum alloys, are often used to install wires on them. In the past, these foundations were mostly made of wood, metal or concrete.
⚡️ Insulators: In electricity distribution networks, insulators are used to isolate conductors from supporting structures such as console bodies and bases. The reason for using these parts is their high electrical resistance.
What are the essential properties of an insulator to apply maximum voltage without current leakage?
- High electrical resistance
- Resistance to puncture in the impact Thermal shock resulting from the passage of high voltage electric current
- Not having the property of self-induction
- Arrestor: these parts are installed on the same base as the protected device of the transformer. To provide a path to transfer excess voltage to the ground during high voltage application.
What is the purpose of power distribution systems?
These systems have been created to meet the needs of small industries, household customers, agricultural, commercial sectors, etc., using the primary distribution voltage of 20KV [33KV] or the secondary distribution voltage of 220V single phase [380V three phase]. In this system, distributors are called distributors and feeders are called feeders.