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BS EN 50470-3:2022 2023

BS EN 50470-3:2022 2023

$167.15

Electricity metering equipment – Particular requirements. Static meters for AC active energy (class indexes A, B and C)

Published By Publication Date Number of Pages
BSI 2023 34
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PDF Catalog

PDF Pages PDF Title
2 undefined
9 1 Scope
10 2 Normative references
3 Terms and definitions
11 4 Standard electrical values
4.1 Voltages
4.2 Currents
4.2.1 General
12 4.2.2 Nominal current
4.2.3 Starting current
4.2.4 Minimum current
4.2.5 Maximum current
4.3 Frequencies
4.4 Power consumption
5 Construction requirements
13 6 Meter marking and documentation
7 Accuracy requirements
7.1 General test conditions
7.2 Methods of accuracy verification
7.3 Measurement uncertainty
7.4 Meter constant
7.5 Initial start-up of the meter
7.6 Test of no-load condition
7.7 Starting current test
14 7.8 Repeatability test
7.9 Allowable errors due to variation of the current
15 7.10 Allowable errors due to influence quantities and disturbances
20 7.11 Time-keeping accuracy
7.12 Accuracy tests at reference conditions
7.13 Error of measurement
21 8 Climatic conditions
8.1 General
8.2 Test of the effect of the climatic environments
9 The effects of external influences
22 10 Requirements concerning the software and protection against corruption
10.1 General
10.2 Identification of functions implemented in software
10.3 Identification and protection of software
10.4 Identification and protection of metrologically relevant parameters
23 10.5 Setting of parameters
10.6 Protection of measurement data
10.7 Protection against influence by metrologically non-relevant software
10.8 Protection against influence by connecting another device
11 Type test
12 Durability
24 13 Reliability
25 Annex A (informative)Calculation of the error of measurement
26 Annex B (informative)Differences between IEC and Directive 2014/32/EU
29 Annex C (informative)Accuracy classes
C.1 General
C.2 Accuracy classes
30 Annex ZZ (informative)Relationship between this European Standard and the essential requirements of Directive 2014/32/EU aimed to be covered

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BS EN 50470-3:2022 2023
$167.15