| 1 | 330 kV sulfur-hexafluoride circuit breaker. | |
| 2 | Triggered vacuum gap. Static breakdown voltage 50 kV. | |
| 3 | They generally use voltages under 35 kV. | |
| 4 | Another example is shown in Fig. 2 for an 85 kV bus. | |
| 5 | Generally, they carry voltage greater than 35 to 65 kV. |