T/JSQA 141-2022 DDZY637 series A-class single-phase intelligent energy meter with pre-paid function
T/JSQA 141-2022 DDZY637 series A-class single-phase intelligent energy meter with pre-paid function
Basic Information
Scope
Scope: This document specifies the terms and definitions, requirements, test methods, inspection rules, and markings, packaging, transportation, and storage of the DDZY637 series A-class single-phase fee-controlled smart electric energy meters. This document applies to installed DDZY637 series A-class single-phase fee-controlled smart electric energy meters that measure single-phase AC energy at a reference frequency of 50Hz; Main technical content: This document specifies the standard electric energy values, structure, requirements, test methods, inspection rules, and markings, packaging, transportation, and storage of the DDZY637 series A-class single-phase fee-controlled smart electric energy meters. The technical requirements of this document stipulate requirements for functionality, accuracy, electrical performance, insulation performance, data security, software, and the interchangeability of communication modules. Among them, the functionality complies with the relevant requirements of DL/T 1490-2015; the accuracy complies with the relevant requirements of GB/T 17215.211-2021; the electrical performance complies with the relevant requirements of DL/T 1487-2015; the insulation performance complies with the relevant requirements of DL/T 1487-2015; and the data security, software, and the interchangeability of communication modules comply with the relevant requirements of GB/T 17215.211-2021. The group standard "DDZY637 Series A-Class Single-Phase Fee-Controlled Smart Electric Energy Meters" has greatly improved key performance indicators such as error consistency and repeatability on the basis of national standards GB/T 17215.211-2021 "Electrical Measuring Equipment (AC) - General Requirements, Tests and Test Conditions - Part 11: Measuring Equipment" and GB/T 17215.321-2021 "Electrical Measuring Equipment (AC) - Special Requirements - Part 21: Static Active Energy Meters (A-Class, B-Class, C-Class, D-Class, E-Class)".