GB/T 7676.3-1998 Direct acting indicating analogue electrical measuring instruments and their accessories. Part 3: Special requirements for wattmeters and varmeters (English Version)
Part 3 of this standard applies to direct acting wattmeters and reactive power meters with analog displays. Note: See Part 7 for multi-function instruments. This standard also applies to non-interchangeable accessories (as defined in Part 1, 2.1.15.3) used in conjunction with wattmeters and reactive power meters.
GB/T 7676.3-1998 history
2017GB/T 7676.3-2017 Direct acting indicating analogue electrical measuring instruments and their accessories—Part 3:Special requirements for wattmeters and varmeters
1998GB/T 7676.3-1998 Direct acting indicating analogue electrical measuring instruments and their accessories. Part 3: Special requirements for wattmeters and varmeters