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BS EN IEC 61557-2:2021:2022 Edition

BS EN IEC 61557-2:2021:2022 Edition

$102.76

Electrical safety in low voltage distribution systems up to 1 000 V AC and 1 500 V DC. Equipment for testing, measuring or monitoring of protective measures – Insulation resistance

Published By Publication Date Number of Pages
BSI 2022 20
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
10 English
CONTENTS
11 FOREWORD
13 1 Scope
2 Normative references
3 Terms and definitions
14 4 Requirements
4.1 General requirements
4.2 Output voltage
4.3 Rated current
4.4 Measuring current
4.5 Influence of external capacitors
4.6 Overvoltage
15 5 Marking and operating instructions
5.1 Marking
5.2 Operating instructions
Figure 1 – Example of a pictogram for a 500 V AC system
16 6 Tests
6.1 General
6.2 Operating uncertainty
6.3 Open-circuit voltage
6.4 Rated current
Table 1 – Calculation of operating uncertainty
17 6.5 Measuring current
6.6 Overvoltage tests
6.6.1 Overvoltage tests with AC voltage
6.6.2 Overvoltage tests with DC voltage
6.7 Battery life in battery operated instruments
6.8 Stability test

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BS EN IEC 61557-2:2021
$102.76