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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 - Part 1: General requirements
IEC 61557-1:2019+AMD1:2024 CSV specifies the general requirements applicable to measuring and monitoring equipment for testing the electrical safety in low-voltage distribution systems with nominal voltages up to 1 000 V AC and 1 500 V DC.
When measuring equipment or measuring installations involve measurement tasks of various measuring equipment covered by this series of standards, then the part of this series relevant to each of the measurement tasks is applicable. Other parts of IEC 61557 can specify additional requirements or deviations.
This document does not cover functional safety or cybersecurity.
IEC 61557-1:2019 cancels and replaces the second edition published in 2007. This edition constitutes a technical revision.
This third edition includes the following significant technical changes with respect to the previous edition:
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