HVDC spacer damper 4B (Transmission line)
HVDC spacer damper 6B (power line)
HVDC spacer damper 3B (intermediatae line)
Spacer damper
Function and use
Device used to prevent towers from collapsing due to sub-span vibrations of power lines Sub-span vibrations are said to occur at wind speeds above 10 m/s, but in practice, vibration amplitude is significantly dampened by the installation of spacer dampers
| Product Category | Product |
|---|---|
| 345kV | ACSR480R 4B |
| 765kV | ACSR480C 6B |
| HVDC | HTACSR480C 3B |
| ACSR480C 6B |
Types and Specifications
| KEPCO Engineering Standard | Item Number | Model | Applicable Conductor | Clamping Method | Clamp Arm Rotation Angle |
|---|---|---|---|---|---|
| ES-5975-0052 : 345kV Spacer damper |
102072 | SD4BL-R480 | ACSR 480mm²(Rail) | Boltless | Within ±20° |
| ES-5975-0059 : 765kV Spacer damper |
102073 | SD4BL-C480 | ACSR 480mm²(Cardinal) | Boltless | Within ±20° |
| GS-5975-0210 : 500kV HVDC 3-Conductor Spacer Damper |
127136 | Intermediate line (3-conductor) | HTACSR/AW 480mm²(Cardinal) | Boltless | Within ±20° |
| GS-5975-0209 : 500kV HVDC 6-Conductor Spacer Damper |
127127 | Power line (6-conductor) | ACSR/AW 480mm²(Cardinal) | Boltless | Within ±20° |