GB/T 22264.8-2022 Mounted digital display electric measuring instruments—Part 8:Test methods
GB/T 22264.8-2022 Mounted digital display electric measuring instruments—Part 8:Test methods
Basic Information
Scope
This document specifies the general test conditions, measurement equipment, samples, test procedures, test data processing, and test reports for installed digital display electrical measuring instruments. This document is applicable to newly manufactured electrical measuring instruments used in distribution systems with a DC voltage of up to 750 V and an AC voltage of up to 690 V, with a nominal frequency of 50 Hz or 60 Hz. These instruments include ammeters and voltmeters, power meters and reactive power meters, frequency meters, phase meters, and power factor meters, insulation resistance meters, and multifunctional meters with any combination of two or more of these instruments. It is also applicable to the digital display portion of electrical measuring instruments with both analog and digital displays.