GB/T 22264.5-2022 Active

This document specifies the product classification, grading, and compliance of installed digital displays for phase meters and power factor meters, technical requirements, information, general markings and symbols, inspection rules, and packaging, storage, and transportation. This document applies to newly manufactured installed digital displays for phase or power factor measurement in AC distribution systems below 690 V with a nominal frequency of 50 Hz or 60 Hz, as well as to the digital display portion of phase meters and power factor meters with analog/digital dual displays. This document does not apply to: -- Phase meters and power factor meters with only direct-acting analog indicators; -- Portable digital display phase meters and power factor meters; -- Phase meters and power factor meters for special purposes that are subject to separate national standards (or industry standards).