1 Scope
This part of GB/T 22264 specifies 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 insulation resistance meter.
This part is applicable to mounted digital displayinsulation resistance meter, and also applicable to the digital display part of dual analogue-digital display insulation resistance meter.
This part is not applicable to:
——insulation resistance meters only provided with direct acting indicating analogue.
——portable digital display insulation resistance meters.
——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 part of GB/T 22264, constitute provisions of this part. For dated reference, subsequent amendments to (excluding corrections), or revisions of, any of these publications do not apply. 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
GB 50054-1995 Code for Design of Low Voltage Electrical Installations
IEC 61326-2-2: 2005 Electrical Equipment for Measurement, Control and Laboratory Use - EMC Requirements - Part 2-2: Particular Requirements - Test Configurations, Operational Conditions and Performance Criteria for Portable Test, Measuring and Monitoring Equipment Used in Low-voltage Distribution Systems
IEC 61326-2-4: 2006 Electrical Equipment for Measurement, Control and Laboratory Use - EMC Requirements - Part 2-4: Particular Requirements - Test Configurations, Operational Conditions and Performance Criteria for Insulation Monitoring Devices according to IEC 61557-8 and for Equipment for Isolation Fault Location according to IEC 61557-9
3 Terms and Definitions
For the purpose of this part, the terms and definitions given in GB/T 22264.1-2008 and the following apply.
3.1
Foreword i
1 Scope
2 Normative References
3 Terms and Definitions
4 Categorization Classification and Conformity of Product
4.1 Categorization
4.2 Classification
4.3 Conformity to Requirements of This Part
5 Reference Conditions and Intrinsic Error
5.1 Reference Conditions
5.2 Intrinsic Error
5.3 Full Scale Value of Measured Quantity
5.4 Accuracy Class Index
6 Nominal Range of Use and Variation
6.1 Nominal Range of Use
6.2 Variation Limit
6.3 Conditions to Determine Variation
7 Requirements
7.1 Safety Requirements
7.2 Electrical Requirements
7.3 Accuracy Performance Requirements
7.4 Electromagnetic Compatibility
7.5 Mechanical Requirements
7.6 Climate Influence Test
7.7 Mean Time between Failures
8 Packaging, Storage and Transportation
9 Information, Conventional Marks and Symbols
10 Marks and Symbols at Terminal
10.1 Requirements for Marks
10.2 Ground Terminal
10.3 Terminal of Measuring Circuit
10.4 Special Marks at Terminal
11 Inspection Rules
