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BS EN 60051-1:2017 Direct acting indicating analogue electrical measuring instruments and their accessories - Definitions and general requirements common to all parts >
BS EN 60051-1:2017 Direct acting indicating analogue electrical measuring instruments and their accessories - Definitions and general requirements common to all parts, 2017
- National foreword
- 3.1 General terms
- 3.2 Description of instruments according to their method of operation
- 3.3 Constructional features of instruments
- 3.4 Characteristic features of instruments
- 3.5 Characteristic values
- 3.6 Influence quantity, reference conditions, nominal range of use and preconditioning
- 3.7 Uncertainty and variations
- 3.8 Accuracy, accuracy class and class index
- 3.9 Test
- 4.1 Description [Go to Page]
- 4.2 Classification
- Table 1 – Minimum IP requirements
- 4.3 Compliance with the requirements of this standard
- 5.1 Reference conditions
- 5.2 Limits of intrinsic uncertainty, fiducial value [Go to Page]
- Table 2 – Reference conditions and tolerances for testing purposes relating to the influence quantities
- 5.3 Nominal range of use and variations [Go to Page]
- Table 3 – Limits of the nominal range of use and permissible variations [Go to Page]
- 5.4 Operating uncertainty, overall system uncertainty and variations
- 5.5 Electrical requirements [Go to Page]
- 5.6 Constructional requirements [Go to Page]
- Figure 1 – Measuring range 10 A to 50 A [Go to Page]
- Figure 2 – Measuring range 80 V to 110 V
- Figure 3 – Measuring ranges 0,06 MΩ to 0,4 M Ω and 0,1 MΩ to 2 MΩ [Go to Page]
- 6.1 Information
- Table 4 – The diameters of conductive screw and the diameters or the area of contact surface
- 6.2 Markings, symbols and their locations
- 6.3 Markings relating to the reference values and nominal ranges of use of influence quantities
- 6.4 The symbols for marking instruments and accessories
- Table 5 – Units, quantities and SI prefixes
- Table 6 – Symbols for marking instruments and accessories
- 6.5 Markings and symbols for terminals [Go to Page]
- 6.6 Instructions for use
- 8.1 Type of test
- 8.2 Type tests
- 8.3 Routine tests
- 8.4 Recurrent tests
- 8.5 Nonconformity classification
- 8.6 Judgement of test results
- Figure A.1 – Effect of temperature
- Figure A.2 – Effect of temperature
- Figure B.1 – Relationship between ambient temperature and relative humidity
- C.1 Uncertainties in this standard
- C.2 Operating uncertainty [Go to Page]
- Figure C.1 – Different kinds of uncertainty [Go to Page]
- C.3 Overall system uncertainty
- C.4 Fiducial operating uncertainty [Go to Page]