BS EN IEC 61557-7:2022 – TC
$134.27
Tracked Changes. Electrical safety in low voltage distribution systems up to 1000 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 | 44 |
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 1 | 30466444 |
| 25 | A-30362881 |
| 26 | undefined |
| 29 | Annex ZA (normative)Normative references to international publicationswith their corresponding European publications |
| 31 | English CONTENTS |
| 32 | FOREWORD |
| 34 | 1 Scope 2 Normative references 3 Terms and definitions |
| 35 | 4 Requirements 4.1 General 4.2 Indication |
| 36 | 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 |
| 37 | 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 |
| 38 | 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 |
| 39 | Annex A (normative) Illustrations for mechanical tests Figure A.1 – Mechanical shock test |
| 40 | Figure A.2 – Drop test |
| 41 | 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 |
| 42 | Figure B.2 – Sequential bipolar connection |
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