324 / | HD | ELECTRICITY: MEASURING AND TESTING |
76.11 | DF | MEASURING, TESTING, OR SENSING ELECTRICITY, PER SE {46} |
103 R | DF | .~ Demand, excess, maximum or minimum (e.g., separate meters for positive and negative power, peak voltmeter) {2} |
104 | .~.~ Thermal (e.g., actuation) |