This part of GB/T 22264 specifies the terms, categorization, classification and conformity of product, technical requirements, packaging, storage and transportation, information, conventional marks and symbols, marks and symbols at terminal and inspection rules of mounted digital display wattmeters and varmeters.
This part is applicable to mounted digital display wattmeters and varmeters, and also applicable to the digital display part of dual analogue-digital display wattmeters and varmeters.
This part is not applicable to:
- wattmeters and varmeters only provided with direct acting indicating analogue.
- portable digital display wattmeters and varmeters.
- the instruments for special purpose specified in national standard (or professional standard).
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 22264. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 22264.1-2008 Mounted Digital Display Electric Measuring Instruments Part 1: Definitions and General Requirements Common to All Parts
3 Terms and Definitions
For the purposes of this part, the terms and definitions given in GB/T 22264.1-2008 and the following apply.
3.1
digital display wattmeter
digital display instrument used for measuring power.
3.2
digital display varmeter
digital display instrument used for measuring wattless power.
