361 / | HD | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
1 | DF | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES {32} |
78 | .~ With specific quantity comparison means {5} | |
79 | DF | .~.~> Voltage and current {3} |
84 | DF | .~.~> Reverse energy responsive (e.g., directional) |
85 | DF | .~.~> Phase |
86 | DF | .~.~> Voltage |
87 | DF | .~.~> Current |