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Electric apparatus and appliances --- Electronic apparatus and appliances --- Reliability --- Congresses --- Reliability --- Congresses
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Varistors for surge-protective applications on systems with dc to 420 Hz frequency and voltages equal to or less than 1000 V rms, or 1200 V dc, are covered. Definitions, service conditions, and a series of test criteria for determining the electrical characteristics of the varistors are provided. The tests are intended as design tests and provide a means of comparing various surge-protective devices.
Varistors --- Transients (Electricity) --- Electric surge --- Electric transient phenomena --- Surge (Electricity) --- Electric apparatus and appliances --- Electric currents --- Electric waves --- Lightning --- Oscillators, Electric --- Diodes, Semiconductor --- Electric resistors --- Standards. --- Protection --- Electronic apparatus and appliances --- Thermal properties
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Measuring instruments --- Transducers --- 621.8 --- Electric apparatus and appliances --- Electromechanical devices --- Electronic apparatus and appliances --- Instruments, Measuring --- Measurement --- Measuring tools --- Scientific apparatus and instruments --- Mechanical power transmission. Machine elements. Gearing. Materials handling. Fastening, fixing devices. Lubrication --- Instruments --- 621.8 Mechanical power transmission. Machine elements. Gearing. Materials handling. Fastening, fixing devices. Lubrication
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