The choice of conductor for distribution lines is often based on the specific application, whether it's an urban, suburban, or rural environment.

• Bare Conductors: These are uninsulated conductors, and their safety relies on the air clearance between the conductor and surrounding objects. They are common in rural areas with fewer trees or buildings.

  • AAC (All-Aluminum Conductor): Made entirely of aluminum strands, AAC is lightweight and cost-effective. It is an excellent choice for short-span lines where weight and cost are the primary considerations.

  • AAAC (All-Aluminum Alloy Conductor): This conductor uses a high-strength aluminum alloy, offering better mechanical strength than AAC. It is widely used in distribution lines where strength and corrosion resistance are needed.

  • ACSR (Aluminum Conductor Steel Reinforced): While also used for transmission, the ACSR conductor is a popular choice for distribution as well, especially where longer spans or higher tensions are required. The steel core provides extra mechanical strength to withstand heavy loads from wind and ice.

• Covered Conductors: These are conductors with a protective polymeric covering. They are a popular choice in environments with a higher risk of accidental contact, such as urban areas with many trees.

  • Spacer Cable System: This system consists of multiple covered conductors held in a tight configuration by insulating spacers. This allows for closer spacing and a more compact line, reducing the risk of faults caused by trees or animals.

  • Aerial Bundled Cable (ABC): This is a bundle of covered conductors twisted together with a bare neutral. ABC is used to create a highly compact and safe line, minimizing the risk of a phase-to-phase short circuit.