BS EN 60051-1:2017
$198.66
Direct acting indicating analogue electrical measuring instruments and their accessories – Definitions and general requirements common to all parts
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 60 |
This part of IEC 60051 specifies definitions and general requirements for direct acting indicating analogue electrical measuring instruments and their accessories.
This part applies to direct acting indicating analogue electrical measuring instruments, such as:
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ammeters and voltmeters;
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wattmeters and varmeters;
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frequency meters of pointer and vibrating-reed types;
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phasemeters, power-factor meters and synchroscopes;
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ohmmeters(impedance meters) and conductance meters;
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multi-function instruments of the above types.
It also applies to:
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certain accessories used with these instruments, such as:
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shunts;
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series resistors and impedance elements;
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combination of the instruments and the accessories provided that the adjustments have been made for the combination;
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direct acting indicating electrical measuring instrument whose scale marks do not correspond directly to its electrical input quantity, provided that the relationship between them is known;
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instruments and accessories having electronic devices in their measuring and/or auxiliary circuits.
These series standards do not apply to:
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special purpose instruments which are covered by their own IEC standards;
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special purpose devices which are covered by their own IEC standards when they are used as accessories.
This standard does not specify requirements concerning dimensions of instruments or accessories (for the former, see IEC 60473 ).
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 11 | 3.1 General terms |
| 15 | 3.2 Description of instruments according to their method of operation |
| 16 | 3.3 Constructional features of instruments |
| 18 | 3.4 Characteristic features of instruments |
| 19 | 3.5 Characteristic values 3.6 Influence quantity, reference conditions, nominal range of use and preconditioning |
| 21 | 3.7 Uncertainty and variations |
| 23 | 3.8 Accuracy, accuracy class and class index 3.9 Test |
| 24 | 4.1 Description 4.1.1 Description according to methods of operation or nature 4.1.2 Description according to environmental conditions 4.1.3 Description according to mechanical conditions 4.1.4 Description according to degrees of protection 4.2 Classification Table 1 – Minimum IP requirements |
| 25 | 4.3 Compliance with the requirements of this standard 5.1 Reference conditions 5.2 Limits of intrinsic uncertainty, fiducial value 5.2.1 Limits of intrinsic uncertainty 5.2.2 Correspondence between intrinsic uncertainty and accuracy class 5.2.3 Fiducial value |
| 26 | Table 2 – Reference conditions and tolerances for testing purposes relating to the influence quantities |
| 27 | 5.3 Nominal range of use and variations 5.3.1 Nominal range of use |
| 28 | Table 3 – Limits of the nominal range of use and permissible variations |
| 29 | 5.3.2 Limits of variations |
| 30 | 5.3.3 Conditions for the determination of variations 5.4 Operating uncertainty, overall system uncertainty and variations 5.5 Electrical requirements 5.5.1 Electrical safety requirements 5.5.2 Self-heating |
| 31 | 5.5.3 Permissible overloads 5.5.4 Limiting range of temperature 5.5.5 Deviation from zero 5.5.6 Electromagnetic compatibility (EMC) |
| 32 | 5.6 Constructional requirements 5.6.1 General constructional requirements 5.6.2 Damping 5.6.3 Sealing to prevent access |
| 33 | 5.6.4 Scales Figure 1 – Measuring range 10 A to 50 A |
| 34 | 5.6.5 Stopper 5.6.6 Preferred values 5.6.7 Adjusters, mechanical and/or electrical 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 |
| 35 | 5.6.8 Effects of vibration and shock 5.6.9 Degrees of protection provided by enclosure |
| 36 | 5.6.10 Terminals 6.1 Information Table 4 – The diameters of conductive screw and the diameters or the area of contact surface |
| 37 | 6.2 Markings, symbols and their locations |
| 38 | 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 |
| 39 | Table 5 – Units, quantities and SI prefixes |
| 40 | Table 6 – Symbols for marking instruments and accessories |
| 47 | 6.5 Markings and symbols for terminals 6.5.1 Requirements for markings 6.5.2 Earthing (grounding) terminals 6.5.3 Measuring circuit terminals 6.5.4 Special markings for terminals 6.6 Instructions for use |
| 48 | 8.1 Type of test 8.2 Type tests 8.3 Routine tests 8.4 Recurrent tests |
| 49 | 8.5 Nonconformity classification 8.6 Judgement of test results |
| 50 | Figure A.1 – Effect of temperature |
| 51 | Figure A.2 – Effect of temperature |
| 53 | Figure B.1 – Relationship between ambient temperature and relative humidity |
| 54 | C.1 Uncertainties in this standard C.2 Operating uncertainty C.2.1 General C.2.2 Estimating absolute operating uncertainty according to type test results Figure C.1 – Different kinds of uncertainty |
| 55 | C.2.3 Estimating absolute operating uncertainty according to limit of intrinsic uncertainty and limit of variations due to every influence specified by this standard |
| 56 | C.3 Overall system uncertainty C.4 Fiducial operating uncertainty |
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BS EN 60051-1:2017 – TC:2020 Edition
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