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Insulators parameters.
| Parameter | Symbol | Porcelain | Glass | SIR |
|---|---|---|---|---|
| Leakage distance | Insulator length | 32 | 34 | 40 |
| High | H (cm) | 14.6 | 14.6 | 33 |
| Diameter | D(cm) | 25.5 | 28 | 10 |
| Rib diameters | d1(cm) | 19.5 | 22.5 | – |
| d2(cm) | 14.5 | 16 | – | |
| d3(cm) | 10.5 | 8 | – | |
| Core diameter | dc(cm) | 5 | 5 | 8 |
