scope:

This standard is applicable to devices and to complete systems other than sphere-gaps, used for the measurement of voltages and currents during dielectric tests with direct voltage, alternating voltage, lightning and switching impulse voltages and for tests with high-impulse currents. The object of this standard is: - to define the terms used; - to state the requirements which the measuring systems shall meet; - to describe some of the devices which are used. A measuring system, which has been subjected to the performance tests and routine checks specified herein and has thus been shown to meet the requirements specified for a particular voltage or impulse current measurement, may be designated "an approved measuring system".