IEC 61557-9 : 3.0

IEC 61557-9 : 3.0

ELECTRICAL SAFETY IN LOW VOLTAGE DISTRIBUTION SYSTEMS UP TO 1000 V A.C. AND 1500 V D.C. - EQUIPMENT FOR TESTING, MEASURING OR MONITORING OF PROTECTIVE MEASURES - PART 9: EQUIPMENT FOR INSULATION FAULT LOCATION IN IT SYSTEMS

International Electrotechnical Committee

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Table of Contents

FOREWORD
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Requirements
5 Marking and operating instructions
6 Tests
7 Overview of requirements and tests for IFLSs
Annex A (normative) - Equipment for insulation fault
        location in medical locations
Annex B (normative) - Portable equipment for insulation
        fault location
Annex C (informative) - Example of an IFLS and
        explanation of upstream and downstream system
        leakage capacitances
Bibliography

Abstract

Describes the requirements for insulation fault location systems which localize insulation faults in any part of the system in unearthed IT a.c. systems and unearthed IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1000 V a.c., as well as in unearthed IT d.c. systems with voltages up to 1500 V d.c., independent of the measuring principle.

General Product Information

Document Type Standard
Status Current
Publisher International Electrotechnical Committee
Committee TC 85

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