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