Descriptors | All-or-nothing relays, Relays, Switches, Switchgear, Electromechanical devices, Communication equipment, Electronic equipment and components, Protected electrical equipment, Quality assurance systems, Assessed quality, Qualification approval, Approval testing, Inspection, Specification (approval), Detail specification, Layout, Quality control, Statistical quality control, Marking, Electrical testing, Performance testing, Endurance testing, Dimensional measurement, Force measurement, Electric contacts, Time measurement, Visual inspection (testing) |