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Electrical ContactsContact ResistanceContact MaterialContact Stress RelaxationContact ForceHigh Temperature Superconducting MaterialContact Resistance StabilityStatic Contact ResistanceIntermittent EffectRough Contact SurfaceContact AreaAccelerated Stress TestingSuperconducting Magnetic Energy StorageApparent Contact AreaLow Voltage SwitchgearSOCKET TechnologyContactor ContactsFactor of LossHarmonic MeasurementMedium Performance