| 361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| 1 | DF | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32} |
| 59 | ![]() | .~ Circuit automatically reconnected only after the fault is cleared {2} |
| 60 | DF | .~.~> With differential voltage comparison across the circuit interrupting means |
| 61 | DF | .~.~> Reclosing of the nonfaulty phases of a polyphase system |