NF EN 50171

Central safety power supply systems

Le présent document définit les exigences générales relatives aux systèmes d''alimentation à source centrale des équipements essentiels de sécurité. Il couvre les systèmes connectés en permanence aux sources de courant alternatif dont la tension ne dépasse pas 1 000 V et qui utilisent des batteries comme source d''alimentation alternative.

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