GB/T 22264.6-2022 Active

This document specifies the product classification, grading, and compliance of installed digital display insulation resistance testers, technical requirements, information, general markings and symbols, inspection rules, and packaging, storage, and transportation. This document applies to newly manufactured installed digital display insulation resistance testers used for measuring insulation resistance 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; it also applies to the digital display portion of insulation resistance testers with analog/digital dual displays. This document does not apply to: -- insulation resistance testers with only direct-acting analog indicators; -- portable digital display insulation resistance testers; -- digital display insulation resistance testers for special purposes that are subject to separate national standards (or industry standards).