GB/T 22264.1-2022 Active

This document specifies the terms and definitions of installed digital display electrical measuring instruments, product classification, grading and conformity, technical requirements, information, general markings and symbols, packaging, storage and transportation, and inspection rules.
This document applies to newly manufactured installed digital display electrical measuring instruments used in power distribution systems with a rated voltage of not more than 750 V DC and 690 V AC, and a nominal frequency of 50 Hz or 60 Hz, for measuring various electrical parameters.
Note: The above-mentioned "distribution systems with a rated voltage of not more than 750 V DC" does not apply to frequency meters, phase meters, and power factor meters.
This document applies to the following installed electrical measuring instruments with digital displays for measuring electrical parameters:
——Current meters and voltage meters;
——Power meters and reactive power meters;
——Frequency meters;
——Phase meters and power factor meters;
——Insulation resistance meters;
——Multifunctional meters with any combination of the above forms;
——The digital display part of electrical measuring instruments with analog/digital dual displays.
This document does not apply to:
——Electrical measuring instruments with only direct-acting analog indications;
——Portable digital display electrical measuring instruments;
——Special-purpose instruments with national standards (or industry standards) elsewhere.
Note: This document does not specify the dimensional requirements of the instruments. The dimensional requirements of the instruments are specified in GB/T 1242—2000.