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EVS-EN 50171:2021

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Kehtiv alates 31.12.2021
Eeldatav eestikeelse tõlke avaldamise kuupäev: 07.2022
Alusdokumendid
EN 50171:2021
Tegevusala (ICS grupid)
29.240 Elektrijaotusvõrgud
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Standardi ajalugu
Staatus
Kuupäev
Tüüp
Nimetus
31.12.2021
Põhitekst
01.01.2003
Põhitekst
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. Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in the event of normal supply failure and may be suitable for energising other essential safety equipment, for example: - electric circuits of automatic fire extinguishing installations; - paging systems and signalling safety installations; - smoke extraction equipment; - carbon monoxide warning systems; - special safety installations related to specific buildings, e.g. high-risk areas. The power supply of CPS should be dedicated only to the essential safety equipment, and not for other typeof loads such as general purpose IT or industrial systems etc. Combinations of the aforementioned safety equipment types and / or non-safety equipment loads are permitted together on the same central safety power supply system providing the availability for safety equipment loads is not impaired. A fault occurring in a circuit should not cause the interruption in any other circuit used to supply safety equipment. Schematic representations of typical central safety power supply equipment are depicted in Clause 4. Power supply systems for fire alarm equipment that are covered by EN 54 (series) are excluded.
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EVS-EN IEC 60445:2021

Inimese-masina-liidese üld- ja ohutuspõhimõtted, märgistus ja tuvastamine. Seadmeklemmide, juhtide otsastuste ja juhtide tuvastamine
Uusim versioon Kehtiv alates 31.12.2021