IEC 60060-2 deals with the measuring systems that are used to quantify the voltages produced by a high-voltage test circuit. It sets out the properties a system must possess in order to be considered acceptable, among them the scale factor, the linearity over the working range, the short-term stability, and the dynamic behaviour that determines how faithfully a fast impulse front is reproduced. The standard defines approved methods for determining each of these properties, describes the reference measuring systems against which working systems are compared, and explains the periodic performance checks and the record that must be kept. Uncertainties are separated into components and combined according to the rules of the series so that a stated expanded uncertainty can be attached to every measurement. Practical guidance is given on the layout of dividers, the treatment of the earth connection and the avoidance of interference pickup. The document is applied in calibration laboratories and in manufacturer test floors whenever impulse or power-frequency voltage measurements are required to be traceable and defensible.