N 22 标准查询与下载
共找到 6 条与 相关的标准，共 1 页
AC standard electric energy meter
- ICS
- 17.220.20
- CCS
- N 22
- 发布
- 2024-04-25
- 实施
- 2024-11-01
Electrical measuring equipment (AC) Special requirements Part 1: Multifunctional energy meters
- ICS
- 17.220.20
- CCS
- N 22
- 发布
- 2024-04-25
- 实施
- 2024-11-01
Technical specifications for state evaluation and replacement of electronic AC watt-hour meters in operation
- ICS
- 17.220.20
- CCS
- N 22
- 发布
- 2023-03-10
- 实施
- 2023-04-10
Technical specification for power quality inspection of mine power supply system
- ICS
- 01.040.03
- CCS
- N 22
- 发布
- 2022-06-02
- 实施
- 2022-07-02
Management specification for on-line monitoring of operating electric energy meters
- ICS
- 17.220.20
- CCS
- N 22
- 发布
- 2021-09-15
- 实施
- 2021-09-30
Low-voltage power grid power line narrowband communication technical specification
- ICS
- 17.020
- CCS
- N 22
- 发布
- 2015-02-01
- 实施
- 2015-03-01
