Descriptors | Electrical measuring instruments, Alternating current, Environment (working), Vibration testing, Voltage, Electromagnetic fields, Leakage paths, Clearance distances, Environmental testing, Accuracy, Electrical testing, Errors, Type testing, Electric current, Power measurement (electric), Mechanical testing, Electromagnetic compatibility, Marking, Electricity supply meters, Compatibility, Impact testing, Damp-heat tests, Electric terminals, Electrical insulation, Dry-heat tests, Cold tests |