AAC AAAC ACSR Self Supporting Aerial Bundled Cable ABC Cable for Overhead Power Line

APPLICATION

• AAC (All Aluminum Conductor)‌ and ‌AAAC (All Aluminum Alloy Conductor)‌ are widely used in ‌medium-voltage distribution networks‌ (e.g., rural electrification, urban overhead lines) due to their ‌lightweight and corrosion resistance‌‌.
• ACSR (Aluminum Conductor Steel Reinforced)‌ is ideal for ‌high-voltage transmission lines‌ (e.g., 11kV-33kV) and long-distance power delivery, thanks to its ‌steel core for enhanced mechanical strength‌‌.
  
  

CONSTRUCTION

• AAC/AAAC‌: Solid or stranded ‌aluminum/aluminum alloy conductors‌ (e.g., 95mm²×3 + 70mm²×1 for neutral line)‌
• ACSR‌: ‌Aluminum strands wrapped around a steel core‌ (e.g., 7/2.8mm steel core with 26/2.8mm aluminum layers)‌
• ABC Cable‌: ‌Three insulated phase conductors + one neutral conductor‌, compactly bundled with a ‌weather-resistant outer sheath‌‌
  
  

KEY FEATURES

• Lightweight & Corrosion-Resistant‌: AAC/AAAC conductors reduce weight by 30-50% compared to copper, with superior durability in harsh environments‌
• High Tensile Strength‌: ACSR’s steel core enables ‌long-span installations‌ (e.g., crossing rivers or mountains)‌
• Self-Supporting Design‌: ABC cables integrate ‌insulated conductors‌ in a bundled structure, simplifying installation and reducing costs‌
• Temperature Resistance‌: XLPE insulation allows operation in ‌-40°C to 90°C‌ ranges, suitable for extreme climates‌

SPECIFICATION

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FAQ

1. What are the primary applications of AAC conductors?
AAC cables are ideal for medium-voltage urban/rural distribution due to their lightweight and corrosion resistance, commonly used in street lighting and temporary power grids.
2. How does AAAC differ from AAC in performance?
AAAC (Aluminum Alloy Conductor) offers higher tensile strength (30% improvement) and better thermal stability compared to pure aluminum AAC, making it suitable for coastal or industrial areas.
3. Why is ACSR preferred for high-voltage transmission?
ACSR's steel core reinforcement provides mechanical strength for long spans (e.g., river crossings) and reduces sag, critical for 11kV-33kV overhead lines.
4. What makes Self-Supporting Aerial Bundle Cables cost-effective?
These cables eliminate support wires by integrating insulated conductors in a bundled structure, cutting installation costs by 20-30%.
5. What temperature range can AAC/AAAC conductors withstand?
Standard AAC/AAAC operates at -40°C to 70°C, while XLPE-insulated variants (e.g., ABC) support -40°C to 90°C.
6. How is ACSR's steel core protected from corrosion?
The steel core is galvanized and often coated with moisture-proof varnish at connection points to prevent rust.
7. Which cable type is best for rural electrification projects?
Self-Supporting ABC (e.g., 3×70+1×50mm²) is recommended for three-phase four-wire systems due to its easy installation and low maintenance.
8. What are the mechanical stress limits for aerial conductors?
Under ice loading, stress must not exceed 60% of short-time breaking strength, with sag adjustments allowed within 10-15% of design stress.
9. Can AAC/AAAC be used in heavy industrial zones?
Yes, but AAAC is preferred for its enhanced chemical resistance to pollutants in industrial areas.
10. What standards govern ACSR conductor connections?
Connecting tubes must align perfectly to avoid unbalanced forces, followed by anti-corrosion coating application.‌