FprEN 50171:2015

SLOVENSKI STANDARD
oSIST prEN 50171:2013
01-september-2013
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SIST EN 50171:2002
Centralni varnostni napajalni sistemi
Central safety power supply systems
Zentrale Sicherheitsstromversorgungssysteme
Systèmes d'alimentation à source centrale
Ta slovenski standard je istoveten z: prEN 50171:2013
ICS:
29.200 8VPHUQLNL3UHWYRUQLNL Rectifiers. Convertors.
6WDELOL]LUDQRHOHNWULþQR Stabilized power supply
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oSIST prEN 50171:2013 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 50171:2013
oSIST prEN 50171:2013
DRAFT
EUROPEAN STANDARD
prEN 50171
NORME EUROPÉENNE
May 2013
EUROPÄISCHE NORM
ICS Will supersede EN 50171:2001 + corr. Aug.2001

English version
Central safety power supply systems

Systèmes d'alimentation à source centrale Zentrale
Sicherheitsstromversorgungssysteme

This draft European Standard is submitted to CENELEC members for CENELEC enquiry.
Deadline for CENELEC: 2013-10-25.

It has been drawn up by CLC/TC 22X.

If this draft becomes a European Standard, CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national
standard without any alteration.

This draft European Standard was established by CENELEC in three official versions (English, French, German).
A version in any other language made by translation under the responsibility of a CENELEC member into its own
language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to
change without notice and shall not be referred to as a European Standard.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Project: 23607 Ref. No. prEN 50171:2013 E

oSIST prEN 50171:2013
prEN 50171:2013 - 2 -
1 Contents
2 Foreword . 4
3 1 Scope . 5
4 2 Normative references . 5
5 3 Terms and definitions . 6
6 4 Types of central safety power supply systems . 8
7 4.1 General provisions . 8
8 4.2 Changeover mode . 8
9 4.3 Parallel standby mode . 8
10 4.4 Changeover mode with an additional control switching device for central switching of the
11 load . 9
12 Changeover mode with additional control switching device for partial switching of the load . 9
4.5
13 4.6 Non-maintained changeover mode . 10
14 5 Operating conditions and requirements . 10
15 5.1 Normal operating conditions and requirements for central safety power supply systems . 10
16 5.2 Requirements to be specified by the user . 10
17 6 Constructional design . 11
18 6.1 Structure of enclosures . 11
19 6.2 Battery chargers and rectifiers . 11
20 6.3 Transformers . 12
21 6.4 Switchgear and controlgear . 12
22 6.5 Central inverters/group inverters/converters . 12
23 6.6 Deep discharge protection . 14
24 6.7 Monitoring and display equipment . 14
25 6.8 Fuses, protective devices and measuring instruments . 15
26 Internal wiring . 15
6.9
27 6.10 Electric strength . 16
28 6.11 Recurring tests . 16
29 6.12 Batteries . 17
30 6.13 Battery installation and provisions for maintenance . 18
31 6.14 Equipment marking . 18
32 6.15 Warning labels . 20
33 7 Information for installation and operation of central safety power supply systems . 20
34 7.1 Documentation . 20
35 7.2 Initial type test. 20
36 7.3 Recurring tests . 21
37 8 Tests . 21
38 8.1 General . 21
39 8.2 Tests required before commissioning . 21
40 8.3 Recurring tests . 23
41 Annex A (informative) System testing . 24

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42 Figures
43 Figure 1 . 8
44 Figure 2 . 9
45 Figure 3 . 9
46 Figure 4 . 9
47 Figure 5 . 10
oSIST prEN 50171:2013
prEN 50171:2013 - 4 -
49 Foreword
50 This document (prEN 50171:2013) has been prepared by CLC/TC 22X "Power electronics".
51 This document is currently submitted to the Enquiry.
52 This document will supersede EN 50171:2001 + corrigendum August 2001.
53 This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment Designed for
54 Use within Certain Voltage Limits (LVD - 2006/95/EC).

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55 1 Scope
56 This European Standard specifies the general requirements for central power supply systems for an
57 independent energy supply to essential safety equipment. This standard covers systems that are
58 permanently connected to AC supply voltages not exceeding 1 000 V and use batteries as an alternative
59 power source.
60 Central safety power supply systems are intended to ensure energy supply to emergency escape lighting in
61 the event of normal supply failure and may be suitable for energising other essential safety equipment, for
62 example:
63 – electric circuits of automatic fire extinguishing installations;
64 – paging systems and signalling safety installations;
65 – smoke extraction equipment;
66 – carbon monoxide warning systems;
67 – special safety installations related to specific buildings, e.g. high-risk areas.
68 Combination of the aforementioned equipment types should not be mixed together on the same central
69 safety power supply system.
70 Schematic representations of typical central safety power supply equipment are depicted in Clause 4.
71 Power supply systems for fire alarm equipment that are covered by EN 54 are excluded.
72 2 Normative references
73 The following documents, in whole or in part, are normatively referenced in this document and are
74 indispensable for its application. For dated references, only the edition cited applies. For undated references,
75 the latest edition of the referenced document (including any amendments) applies.
76 EN 1838, Lighting applications – Emergency lighting
77 EN 50272-2:2001, Safety requirements for secondary batteries and battery installations – Part 2: Stationary
78 batteries
79 EN 50274, Low-voltage switchgear and controlgear assemblies – Protection against electric shock –
80 Protection against unintentional direct contact with hazardous live parts
81 EN 60051 (series), Direct acting indicating analogue electrical measuring instruments and their accessories
82 EN 60146-1-1, Semiconductor converters – General requirements and line commutated converters –
83 Part 1-1: Specification of basic requirements
84 EN 61951-1, Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable
85 sealed rechargeable single cells – Part 1: Nickel-cadmium
86 EN 60417 (series), Graphical symbols for use on equipment
87 EN 60598-1, Luminaires – Part 1: General requirements and tests (IEC 60598-1, modified)
88 EN 60622, Sealed nickel-cadmium prismatic rechargeable single cells
89 EN 60623, Vented nickel-cadmium prismatic rechargeable single cells
90 EN 60721-3-3, Classification of environmental conditions – Part 3: Classification of groups of environmental
91 parameters and their severities – Section 3: Stationary use at weatherprotected locations
92 EN 60896-11, Stationary lead-acid batteries – Part 11: Vented types – General requirements and methods of
93 test
94 EN 60896-21, Stationary lead-acid batteries – Part 21: Valve regulated types – Methods of test

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95 EN 60896-22, Stationary lead-acid batteries – Part 22: Valve regulated types – Requirements
96 EN 60947-2, Low-voltage switchgear and controlgear – Part 2: Circuit-breakers
97 EN 60947-4-1, Low-voltage switchgear and controlgear – Part 4-1: Contactors and motor-starters – Electro-
98 mechanical contactors and motor-starters
99 EN 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards – Immunity for industrial
100 environments
101 EN 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards – Emission standard for
102 residential, commercial and light-industrial environments
103 EN 61032:1998, Protection of persons and equipment by enclosures – Probes for verification
104 EN 61558-2-4, Safety of transformers, reactors, power supply units and similar products for supply voltages
105 up to 1 100 V – Part 2-4: Particular requirements and tests for isolating transformers and power supply units
106 incorporating safety isolating transformers
107 EN 62040-1, Uninterruptible power systems (UPS) - Part 1: General and safety requirements for UPS
108 EN 6207
...