Central safety power supply systems

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. Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in the event of normal supply failure and could be suitable for energizing other essential safety equipment, for example: electric circuits of automatic fire extinguishing installations;paging systems and signalling safety installations;
ΚΩΔΙΚΟΣ ΠΡΟΪΟΝΤΟΣ: CYS EN 50171:2021
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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. Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in the event of normal supply failure and could be suitable for energizing other essential safety equipment, for example: electric circuits of automatic fire extinguishing installations;paging systems and signalling safety installations;