L Yoke Plates are structural link fittings used to connect insulator strings and other overhead line hardware components. Their plate geometry is designed to meet specified connection dimensions and mechanical load requirements in transmission line assemblies.
Technical Parameters
- Type: L series yoke plate
- Material: Carbon steel or forged steel
- Surface treatment: Hot-dip galvanizing
- Rated Failure Load: 70–210 kN
- Hole Diameter: Commonly 18–26 mm
- Plate Thickness: Commonly 10–20 mm

| Model | Dimension | Failure Load | Drawing No. | |||||
| (mm) | (kN) | |||||||
| H | L | b1 | b | Φ | Φ1 | |||
| L-07-70/400 | 70 | 400 | – | 16 | 18 | 18 | 70 | (a) |
| L-07-70/500 | 70 | 500 | – | 16 | 18 | 18 | 70 | |
| L-07-70/600 | 70 | 600 | – | 16 | 18 | 18 | 70 | |
| L-10-100/450 | 100 | 450 | – | 16 | 20 | 18 | 100 | |
| L-10-100/500 | 100 | 500 | – | 16 | 20 | 18 | 100 | |
| L-10-100/600 | 100 | 600 | – | 16 | 20 | 18 | 100 | |
| L-12-70/400 | 70 | 400 | – | 16 | 24 | 18 | 120 | |
| L-12-100/450 | 100 | 450 | – | 16 | 24 | 18 | 120 | |
| L-12-100/500 | 100 | 500 | – | 16 | 24 | 18 | 120 | |
| L-12-100/600 | 100 | 600 | – | 16 | 24 | 18 | 120 | |
| L-16-100/400 | 100 | 400 | – | 18 | 26 | 20 | 160 | |
| L-16-100/450 | 100 | 450 | – | 18 | 26 | 20 | 160 | |
| L-16-100/500 | 100 | 500 | – | 18 | 26 | 20 | 160 | |
| L-16-100/600 | 100 | 600 | – | 18 | 26 | 20 | 160 | |
| L-21-110/400 | 110 | 400 | 20 | 16 | 26 | 20 | 210 | (b) |
| L-21-120/450 | 120 | 450 | 20 | 16 | 26 | 20 | 210 | |
| L-21-120/500 | 120 | 500 | 20 | 16 | 26 | 20 | 210 | |
| L-21-130/600 | 130 | 600 | 20 | 16 | 26 | 20 | 210 | |












