What to read after GB/T 15284-2022 Translated English of Chinese Standard (GB/T15284-2022, GBT 15284-2022)?

This Standard specifies the terms and definitions, technical requirements, test methods, inspection rules, identification and documentation, packaging and storage for multi-rate electricity meters hereinafter referred to as "the meters". This Standard applies to newly manufactured meters for measuring and controlling electricity in a 50Hz or 60Hz grid with a voltage not exceeding 600V. This Standard is only applicable to the meters whose time switch is digital display and use battery or capacitor as working reserve. This Standard does not apply to meters whose time switch is an analog dial, nor does it apply to electromechanical meters.