BS EN 50171:2021:2022 Edition

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Central safety power supply systems

Published By	Publication Date	Number of Pages
BSI	2022	30

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Description

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PDF Pages	PDF Title
2	undefined
7	1 Scope 2 Normative references
9	3 Terms and definitions
11	4 Operating modes of central safety power supply systems 4.1 General provisions 4.2 Changeover mode
12	4.3 Mode without interruption 4.4 Changeover mode with an additional control switching device for central switching of the load 4.5 Changeover mode with an additional control switching device for partial switching of the load
13	4.6 Non-maintained changeover mode 4.7 Mode without interruption with an additional control switching device for central switching of the load 5 Operating conditions and requirements 5.1 Normal operating conditions and requirements for central safety power supply systems
14	5.2 Requirements to be specified by the user 6 Constructional design 6.1 General requirements 6.2 Structure of enclosures
15	6.3 Battery chargers and rectifiers
16	6.4 Transformers 6.5 Switchgear and controlgear
17	6.6 Central inverters/group inverters/converters
18	6.7 Deep discharge protection 6.8 Monitoring and display equipment
19	6.9 Fuses, protective devices and measuring instruments
20	6.10 Internal wiring 6.11 Electric strength 6.12 Test systems
21	6.13 Batteries
22	6.14 Equipment marking
24	6.15 Warning labels 7 Required information for safe installation and operation of central safety power supply systems 7.1 Documentation
25	7.2 Additional Information 7.3 Information on Recurring Test
26	7.4 Battery installation and provisions for maintenance 8 Tests 8.1 General 8.2 Verification required before commissioning

Additional information

Status	Definitive
Title	Central safety power supply systems
Corrects	BS EN 50171:2021
Replaces	BS EN 50171:2001
Publisher	BSI
Committee	PEL/22
Pages	30
Publication Date	2024-09-06
ISBN	978 0 539 33268 1
Standard Number	BS EN 50171:2021
Identical National Standard Of	EN 50171:2021/AC:2024-08
Descriptors	Electric power systems, Emergency electrical installations, Electrical equipment, Battery-powered devices, Electrical testing, Performance testing, Electric control equipment, Dielectric strength, Electrical protection equipment, Standby lighting, Electrical components, Emergency lighting, Electrical installations, Electric cells, Escape lighting, Electrical safety
ICS Codes	29.240 - Power transmission and distribution networks

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BS EN 50171:2021:2022 Edition

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