Overhead Conductors (ACSR, AAAC)
Overhead conductors, specifically ACSR (Aluminum Conductor Steel Reinforced) and AAAC (All Aluminum Alloy Conductor), are used for transmitting and distributing electrical power. ACSR offers high tensile strength and is ideal for long spans and river crossings, while AAAC provides superior corrosion resistance and is lighter than ACSR.
Overview
ACSR (Aluminum Conductor Steel Reinforced):
- Composition: Consists of a steel core surrounded by aluminum strands.
- Strength: The steel core provides high tensile strength, allowing for longer spans and reduced support needs.
- Applications: Suitable for overhead power transmission lines, river crossings, and guard cables.
- Limitations: Can be susceptible to corrosion, particularly in coastal areas.
AAAC (All Aluminum Alloy Conductor):
- Composition: Made from an aluminum alloy, typically Al-Mg-Si, with high strength and corrosion resistance.
- Strength: Offers good tensile strength and a high strength-to-weight ratio.
- Corrosion Resistance: More resistant to corrosion than ACSR, making it suitable for coastal and other harsh environments.
- Applications: Used in overhead distribution and transmission lines, especially where corrosion resistance is crucial.
- Benefits: Lighter than ACSR with comparable strength and current carrying capacity.
Specification
These cables are formally known as All Aluminium Conductor (AAC), All Aluminium Alloy Conductor (AAAC) and Aluminium Conductor Steel Reinforced (ACSR).
