| 218 / | HD | HIGH-VOLTAGE SWITCHES WITH ARC PREVENTING OR EXTINGUISHING DEVICES |
| 1 | DF | ARC PREVENTING OR EXTINGUISHING DEVICES {14} |
| 89 | DF | .~ Interposed non-conductor {3} |
| 91 | DF | .~.~ Liquid {14} |
| 92 | DF | .~.~.~ Operating mechanism structure or arrangement {4} |
| 94 | ![]() | .~.~.~.~ Delay means (e.g., dashpot) |