
BS EN IEC 61557-9:2025 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. Equipment for insulation fault location in IT systems
Publication Year
2025
Document Status
Current
Abstract
Details requirements for insulation fault location systems (IFLS) for unearthed IT AC systems with voltage up to 1000 V and unearthed IT DC systems with voltage up to 1500 V.
Document History
Supersedes BS EN 61557-9:2015. See National foreword for contractual and legal considerations.
ISBN
9780539178555
Publisher Information
British Standards Institution
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