BS EN 50171:2001 PDF
Central power supply systems
Название (английский):
BS EN 50171:2001
Central power supply systems
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 23 августа 2001 г.
- ICS:
- 91.140.50
- SKU:
- BS EN 50171:2001
Central power supply systems
Central power supply systems
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BS EN 50171:2001 specifies the general requirements for central power supply systems for an independent energy supply to essential safety equipment. This standard covers systems permanently connected to AC supply voltages not exceeding 1 000 V and that use batteries as the alternative power source. The central power supplies are intended to energize emergency escape lighting in the case of failure of the normal supply, and may be suitable for energizing other essential safety equipment, for example:
electrical circuits of automatic fire extinguishing installations
paging systems and signalling safety installations
smoke extraction equipment
carbon monoxide warning systems
specific safety installations related to specific buildings, e.g. high-risk areas.
Schematic representations of typical central power supply equipment are depicted in clause 4. When a UPS system is used to feed these essential safety systems, it must comply with EN 50091-1 and its relevant parts, and the additional requirements of this standard. The power supply system for fire alarms covered by EN 54 are excluded. ISBN: 0 580 38394 6
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