Uni-cable’s STACIR/AW (Super-Thermal Aluminum Conductor Invar Reinforced / Aluminum-Clad Steel Wire) and HI-STACIR/AW (High-Capacity STACIR/AW) are advanced super-thermal resistant conductors designed for ultra-high-temperature, high-efficiency power transmission.

Key Features & Advantages:
✔ Operating temperatures up to 210°C (far exceeding traditional ACSR)
✔ Low sag performance even under extreme thermal loads
✔ Higher ampacity (30-50% more than conventional conductors)
✔ Corrosion-resistant (ideal for coastal and humid environments)
✔ Lightweight yet strong (reduces structural load on towers)

Export Country & Power Company Application
Country: India
Power Company: Power Grid Corporation of India Limited (PGCIL)
Project: 765kV Ultra High-Voltage Transmission Line (Western Region Grid Upgrade)
Challenge:
India’s rapidly growing power demand required higher-capacity transmission lines without costly tower reinforcements.
Existing conductors suffered from excessive sag during peak loads (especially in hot climates).
Needed a future-proof solution for long-distance, high-efficiency power transfer.
Solution: Uni-cable’s HI-STACIR/AW Conductors
Deployed in a 300 km stretch of the 765kV line between Mumbai and Pune.

HI-STACIR/AW-500 mm² was chosen for its:
Ultra-high thermal resistance (210°C continuous operation)
30% higher current capacity vs. conventional conductors
Minimal sag even in India’s 45°C+ summer temperatures

Results & Benefits:
✅ Increased power transfer capacity by 40% without new tower construction.
✅ Reduced transmission losses due to superior conductivity.
✅ Long-term durability (projected 40-year lifespan with minimal maintenance).
✅ PGCIL approved Uni-cable as a preferred supplier for future high-capacity projects.

Shipment & Export Details
Product Supplied:
HI-STACIR/AW-500 mm² (High-Temp Aluminum Alloy + Aluminum-Clad Steel Core)

Total Quantity: 350 km (shipped in 6 batches over 8 months)

Logistics & Compliance:
Port of Loading: Ningbo, China

Port of Destination: Mumbai Port (JNPT), India

Shipping Method: 40ft HQ Containers + Breakbulk for large reels

Lead Time: 60 days (order to delivery)

Certifications:

IEC 62004 (Thermal-Resistant Conductors)

IS 398 (Part 4) (Indian Standards for Alloy Conductors)

ASTM B801 (Aluminum-Clad Steel Wire)

Challenges & Solutions in Export:
Customs Clearance: Pre-shipment BIS (Bureau of Indian Standards) certification was required—Uni-cable worked with local Indian partners for fast approval.

Monsoon Shipping Risk: Used waterproof, corrosion-resistant packaging for sea transport.

Just-in-Time Delivery: Coordinated with PGCIL’s construction schedule to avoid delays.

Why Did PGCIL Choose Uni-cable?
Proven Performance: Previous successful deployments in China, Brazil, and Southeast Asia.
Cost Efficiency: 20% lower cost than European/Japanese alternatives.
Technical Support: On-site engineers assisted with installation & load testing.
Sustainability: Recyclable materials aligned with India’s green energy goals.

Uni-cable’s STACIR/AW & HI-STACIR/AW conductors have successfully enhanced India’s power grid efficiency, demonstrating their superior thermal resistance, high ampacity, and long-term reliability. This project has positioned Uni-cable as a key global supplier for next-gen power transmission solutions.