361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
1 | DF | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32} |
54 | .~ Load shunting by fault responsive means (e.g., crowbar circuit) {3} | |
55 | DF | .~.~> Disconnect after shunting |
56 | DF | .~.~> Voltage responsive |
57 | DF | .~.~> Current responsive |