Application
LSCC (Low Sag Composite-core Conductor) is used for both new transmission lines with fewer towers or longer spans and up-rating an existing transmission lines by replacing the existing conductor without tower modification or reinforcement.
Construction
• Stranded conductor based on ASTM B 857 and EN 50182
• Aluminum-covered carbon fiber composite-core based on ASTM B 987
• Aluminum wire with trapezoidal shape based on ASTM B 609
1. Aluminum-covered Carbon Fiber Composite-core
- Extra high tensile strength, low thermal expansion and light weight
- Galvanic protection
- Stable protection of composite-core from various environment conditions
- More current carrying capacity
- Less electrical resistance (low line losses)
2. Aluminum wire with trapezoidal shape
- High conductivity (63% IACS)

Value of Line Loss Reduction
Type | Conductor | Amps (A) | Temp. at Amps (oC) | Load Factor | MVA | Annual Line Losses (MWh) | Line Loss Reduction (MWh) |
New Transmission Line | ACSR | 1,000 | 91 | 53% | 398 | 106,008 | - |
LL-ACSR | 1,000 | 81 | 53% | 398 | 84,601 | 21,408 |
LSCC | 1,000 | 77 | 53% | 398 | 75,557 | 30,451 |
Up-rating an Existing Transmission Line | ACSS | 1,600 | 190 | 53% | 637 | 342,597 | - |
Existing Composite Core Conductor | 1,600 | 151 | 53% | 637 | 240,903 | 101,694 |
LSCC | 1,600 | 150 | 53% | 637 | 238,851 | 103,746 |
* 230kV Line, route length 100km, Drake equivalent conductors
* Ambient temp. : 30oC, Wind speed : 0.61m/s, Emissivity : 0.5, Solar absorption : 0.5
* LL-ACSR : Low Loss ACSR, ACSS : Aluminum Conductor Steel Supported