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BS EN 62058-21:2010

BS EN 62058-21:2010

$142.49

Electricity metering equipment (a.c.). Acceptance inspection – Particular requirements for electromechanical meters for active energy (classes 0,5, 1 and 2 and class indexes A and B)

Published By Publication Date Number of Pages
BSI 2010 28
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This part of IEC 62058 specifies particular requirements for acceptance inspection of newly manufactured direct connected or transformer operated electromechanical meters for active energy (classes 0,5, 1 and 2) delivered in lots in quantities above 50. The method of acceptance of smaller lots should be agreed upon by the manufacturer and the customer.

The process described herein is primarily intended for acceptance inspection between the manufacturer and the purchaser.

This European standard applies to meters of accuracy classes 0,5, 1 and 2, as well as to meters of class indexes A and B.

NOTE It can also be used for other purposes, for example to support initial verification.

PDF Catalog

PDF Pages PDF Title
12 English
CONTENTS
13 INTRODUCTION
14 1 Scope
2 Normative references
3 Terms, definitions, symbols and abbreviations
4 Test conditions
4.1 Place of inspection
4.2 Reference conditions
Table 1 – Voltage and current unbalance for polyphase meters
15 Table 2 – Reference conditions
16 4.3 Uncertainty of measurement of percentage error
17 4.4 Cover and seal
5 Inspection procedure
5.1 Tests to be performed and inspection methods
Table 3 – Percentage error limits corrected with uncertainty
18 5.2 Preliminary tests and pre-conditioning
5.3 Test No. 1: AC voltage test
Table 4 – Acceptance tests and inspection methods
19 5.4 Test No. 2: Test of no-load condition
5.5 Test No. 3: Starting
5.6 Tests No. 4 to 9: Accuracy tests
Table 5 – AC voltage test
Table 6 – Value of current for starting test
20 5.7 Test No. 10: Verification of the register
5.8 Other tests
6 Criteria for lot acceptance non-acceptance, disposal of unacceptable lots
Table 7 – Accuracy test points and limits of percentage error
23 7 Test record and evaluation
24 Table 8 – Inspection sheet
25 Bibliography

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BS EN 62058-21:2010
$142.49