| auxiliary circuits voltage | The auxiliary circuit rated voltage | Number |
| basic impulse level | The dielectric insulation gradient of a material tested to withstand the defined voltage stresses | Number |
| impedance voltage | A voltage which is the resultant of reactive and resistance component | Number |
| lower limit operating voltage | The voltage which is the lowest voltage at which a functional or physical object is expected to operate | Number |
| operating voltage | The voltage under normal working conditions, at a given instant | Number |
| peak-to-peak impulse voltage at the impulse voltage repetition rate | The impulse peak-to-peak voltage at the impulse voltage repetition rate in accordance with IEC 60034-18-42 | Number |
| peak-to-peak voltage at the fundamental frequency | The peak-to-peak phase to earth voltage at the fundamental frequency in accordance with IEC 60034-18-42 | Number |
| phase-to-earth jump voltage | The change in phase-to-earth voltage at the terminals of the machine occurring at the start of each impulse in accordance with IEC 60034-18-42 | Number |
| rated impulse voltage | The voltage that the functional or physical object can withstand during abnormal conditions | Number |
| rated input voltage | Input voltage for which the equipment is constructed | Number |
| rated lightning impulse withstand voltage (Up) kV peak | The high-voltage switchgear and controlgear level of lightning over-voltages that the equipment may withstand | Number |
| rated output voltage | The voltage a functional or physical object is designed to deliver under specified conditions | Number |
| rated primary voltage | The voltage on the primary side in a transformer | Number |
| rated primary winding voltage | A rated voltage that is the voltage between lines at the terminals of the primary winding on a transformer at rated output | Number |
| rated secondary voltage | The voltage on the secondary side in a transformer | Number |
| rated secondary winding voltage | A rated voltage that is the voltage between lines at the terminals of the secondary winding on a transformer at rated output | Number |
| rated short-duration power-frequency withstand voltage (Ud) | The high-voltage switchgear and controlgear prescribed root mean square value of sinusoidal power frequency voltage that the equipment shall withstand during tests made under specified conditions and for a specific time | Number |
| rated voltage | A voltage that is the voltage between lines at the terminals of the machine at rated output | Number |
| rated voltage for electric SCSSV | The electric power requirements of each electric surface-controlled subsurface safety valves (SCSSV) in volts | Number |
| upper limit operating voltage | The voltage which is the highest voltage at which a functional or physical object is expected to operate | Number |
| voltage at lower limit continuous operating speed | The voltage at the motor terminals at minimum continuous operating speed at the upper torque value of the load window as per IEC 61800-4 | Number |
| voltage at upper limit continuous operating speed at maximum torque | The voltage at the motor terminals at maximum continuous operating speed at the upper torque value of the load window as per IEC 61800-4 | Number |
