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BS EN IEC 61557-7:2022

BS EN IEC 61557-7:2022

$102.76

Electrical safety in low voltage distribution systems up to 1 000 V a.c. and 1 500 V d.c. Equipment for testing, measuring or monitoring of protective measures – Phase sequence

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

PDF Pages PDF Title
2 undefined
5 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
7 English
CONTENTS
8 FOREWORD
10 1 Scope
2 Normative references
3 Terms and definitions
11 4 Requirements
4.1 General
4.2 Indication
12 4.3 Measuring equipment
4.3.1 General
4.3.2 Portable phase sequence indicator
4.3.3 Test leads for direct contact with live parts and accessories
13 5 Marking and operating instructions
5.1 Marking
5.2 Operating instructions
6 Tests
6.1 General
6.1.1 Tests – General
6.1.2 Visual display
6.1.3 Audible indication (if applicable)
6.2 Leakage current
14 6.3 Test of mechanical requirements (type tests)
6.3.1 Mechanical shock test
6.3.2 Test of leads for direct contact with live parts
6.4 Overvoltage
6.5 Test of markings
15 Annex A (normative) Illustrations for mechanical tests
Figure A.1 – Mechanical shock test
16 Figure A.2 – Drop test
17 Annex B (informative) Phase sequence test
B.1 Phase sequence test – Tripolar connection
B.2 Phase sequence test – Sequential bipolar connection
Figure B.1 – Tripolar connection
18 Figure B.2 – Sequential bipolar connection

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BS EN IEC 61557-7:2022
$102.76