German version EN 50171:2021
Class/Status:
Standard,
valid
Released: 2022-10
VDE Art. No.: 0500237
This European Standard specifies the general requirements for central power supply systems for an independent energy supply to essential safety equipment. This standard covers systems that are permanently connected to AC supply voltages not exceeding 1 000 V and use batteries as an alternative power source.
Replacement for:
DIN EN 50171 VDE 0558-508:2001-11
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