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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 StorageLow Voltage SwitchgearApparent Contact AreaSOCKET TechnologyContactor ContactsFactor of LossHarmonic MeasurementMedium Performance