| 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} |
| 103 | ![]() | .~.~.~ Arcing chamber {3} |
| 104 | DF | .~.~.~.~> Including magnet or coil |
| 105 | DF | .~.~.~.~> Grid or baffle stack |
| 106 | DF | .~.~.~.~> With venting means |