German version EN 50171:2021/AC:2024
Class/Status:
Standard,
valid
Released: 2025-04
VDE Art. No.: 0500307
In this corrigendum, the DOW date has been replaced in the European foreword.
This document specifies the general requirements for central power supply systems for an independent energy supply to essential safety equipment. This document covers systems that are permanently connected to AC supply voltages not exceeding 1 000 V and use batteries as an alternative power source.
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