Main technical parameters:
| Production model | Rated Voltage(kV) | Rated mechanical bending load (kN) | Sructural Height H.(mm) | Minimum Arc distance Li.(mm) | Min.creepage distance Lc.(mm) | Diameter of shed D.(mm) | Lightning impulse withstand voltage (peak) (kV) | P.F.1min wet withstand voltage (Virtual value) (kV) |
| FS-10/5 | 10 | 5 | 280 | 130 | 300 | 85 | 75 | 42 |
| FS-15/6 | 15 | 6 | 400 | 245 | 520 | 80 | 75 | 42 |
| FSW-35/5 | 35 | 5 | 625 | 480 | 1400 | 145/115 | 265 | 95 |
| FS2-35/5 | 35 | 5 | 660 | 480 | 1120 | 142 | 265 | 95 |
| FSW-66/10 | 66 | 10 | 790 | 650 | 1920 | 160/140 | 325 | 140 |
| FSW-110/10 | 110 | 10 | 1260 | 1060 | 3400 | 215/185 | 550 | 230 |
