EN 50172:2004

SLOVENSKI STANDARD
01-januar-2006
Sistemi za nujnostno razsvetljavo evakuacijskih poti
Emergency escape lighting systems
Sicherheitsbeleuchtungsanlagen
Systèmes d'éclairage de sécurité
Ta slovenski standard je istoveten z: EN 50172:2004
ICS:
91.160.10 Notranja razsvetljava Interior lighting
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 50172
NORME EUROPÉENNE
EUROPÄISCHE NORM August 2004
ICS 91.160.00
English version
Emergency escape lighting systems

Systèmes d'éclairage de sécurité Sicherheitsbeleuchtungsanlagen

This European Standard was approved by CENELEC on 2004-03-01. 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.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on
application to the Central Secretariat or to any CENELEC member.

This European Standard exists 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 Central Secretariat has the same status as the official versions.

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

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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 50172:2004 E
Foreword
This European Standard was prepared by the former CENELEC BTTF 62-8, Emergency lighting systems.

The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 50172 on
2004-03-01.
For emergency lighting systems, it should be read in conjunction with EN 50171 and EN 1838.

Attention is drawn to the Council Directive 92/58/EEC of 24 June 1992 on the minimum requirements for
provision of safety and/or health signs at work.

The following dates were fixed:

– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement  (dop) 2005-03-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn  (dow) 2007-03-01

_____________
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Contents
Page
1 Scope.4

2 Normative references.4

3 Definitions.4

4 Emergency escape lighting .6

5 Emergency escape lighting design.7

6 Emergency escape lighting system records and log book .8

7 Servicing and testing .9

Annex A (informative) A-deviations.11

1 Scope
This European Standard specifies the provision of illumination of escape routes and safety signs in the
event of failure of the normal supply, and specifies the minimum provision of such emergency lighting
based on the size, type and usage of the premises. This standard relates to the provision of electric
emergency escape lighting in all work places and premises open to the public.

This European Standard does not cover private domestic premises but its provisions are applicable to
common access routes within multi-storey dwellings.

This European Standard is also applicable to standby lighting used as emergency escape lighting.

There are emerging way guidance techniques that, when applied to escape routes in addition to
conventional emergency lighting luminaires, can enhance its effectiveness in an emergency.

2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.

EN 81-1 Safety rules for the construction and installation of lifts and service lifts -
Part 1: Electric lifts
EN 1838:1999 Lighting applications - Emergency lighting

EN 13032 (series) Light and lighting - Measurement and presentation of photometric data of
lamps and luminaires
EN 50171 Central power supply systems

EN 50272-2 Safety requirements for secondary batteries and battery installations
Part 2: Stationary batteries
EN 60529 Degrees of protection provided by enclosures (IP Code) (IEC 60529)

EN 60598-2-22:1998 Luminaires - Part 2-22: Particular requirements - Luminaires for emergency
lighting (IEC 60598-2-22:1997, modified)

1)
EN 62034 Automatic test system for battery powered emergency escape lighting

HD 384/HD 60364 series Electrical installations of buildings (IEC 60364 series, modified)

ISO 8528-12 Reciprocating internal combustion engine driven alternating current generating
sets - Part 12: Emergency power supply to safety devices

3 Definitions
For the purposes of this standard the following definitions apply:

3.1
premises
the whole or part of a building treated as a single unit for the purposes of applying this standard

1)
At draft stage.
- 5 - EN 50172:2004
3.2
escape route
a route designated for escape to a place of safety in the event of an emergency

3.3
emergency escape route lighting
that part of emergency escape lighting provided to ensure that the means of escape can be effectively
identified and safely used at all times when the premises are occupied

3.4
open area (anti-panic)
areas of undefined escape routes in halls or premises larger than 60 m floor area or smaller areas if
there is additional hazard such as use by a large number of people

3.5
place of safety
a place in which persons are in no danger

3.6
mounting height
the vertical distance between a luminaire and the floor

3.7
combined emergency luminaire
a luminaire containing two or more lamps, at least one of which is energized from the emergency lighting
supply and the other(s) from the normal lighting supply. A combined emergency luminaire is either
maintained or non-maintained
3.8
emergency exit
a way out that is used during an emergency

3.9
final exit
the terminal point of an escape route

3.10
luminaire
apparatus which distributes, filters or transforms the light transmitted from one or more lamps and which
includes all the parts necessary for supporting, fixing and protecting the lamps, but not the lamps
themselves, and which includes where necessary circuit auxiliaries together with the means for
connecting them to the supply
3.11
maintained emergency luminaire
luminaire in which the emergency lighting lamps are energized at all times when normal or emergency
lighting is required
[EN 60598-2-22:1998, 22.3.5]
3.12
non-maintained emergency luminaire
luminaire in which the emergency lighting lamps are in operation only when the supply to the normal
lighting fails
[EN 60598-2-22:1998, 22.3.6]
3.13
internally illuminated safety sign
a sign that is illuminated, when required, by an internal source
[EN 1838:1999, 3.11]
3.14
externally illuminated safety sign
a sign that is illuminated, when required, by an external source
[EN 1838:1999, 3.10]
3.15
required battery duration
duration of emergency operation of the battery required for the function

3.16
rated duration of emergency operation
time, as claimed by the manufacturer, that the rated emergency lumen output is provided
[EN 60598-2-22:1998, 22.3.15]
4 Emergency escape lighting
4.1 General
The purpose of emergency escape lighting is to ensure the lighting is provided promptly, automatically
and for a suitable time in a specified area when the normal power supply to the normal lighting fails. The
installation shall ensure that emergency escape lighting fulfils the following functions:

a) to illuminate escape route signs;
b) to provide illumination onto and along such routes as to allow safe movement towards and through
the exits provided to a place of safety;
c) to ensure that fire alarm call points and fire equipment provided along escape routes can be readily
located and used;
d) to permit operations concerned with safety measures.

Emergency escape lighting shall be activated not only on complete failure of the supply to the normal
lighting but also on a localized failure such as a final circuit failure.

Emergency escape lighting is not designed to enable normal operations to be continued on the premises
in the event of failure of normal or standby lighting.

Full details of levels and measurement of illuminance and adaptation are specified in EN 1838 and
EN 13032.
The wiring rules of HD 384 / HD 60364 shall be complied with.

4.2 Identification and luminance of emergency exit signs

Where direct sight of an exit is not possible and doubt may exist as to its location, a directional sign (or
series of signs) shall be provided, placed such that a person moving towards it will be directed towards an
emergency exit.
An exit or directional sign shall be in view at all points along the escape route.

All signs marking exits and escape routes shall be uniform in colour and format, and their luminance shall
comply with EN 1838.
NOTE  Maintained exit signs should be considered for applications where occupants may be unfamiliar with the building.

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4.3 Escape route lighting
The objective of escape route lighting is to enable safe exit for occupants by providing appropriate visual
conditions and direction finding on escape routes and to ensure that fire fighting and safety equipment
can be readily located and used.

4.4 Open area (anti-panic) lighting

The objective of open area (anti-panic) lighting is to reduce the likelihood of panic and to enable safe
movement of occupants towards escape routes by providing appropriate visual conditions and direction
finding. It is used in areas of undefined escape routes in halls or premises larger than 60 m floor area or
smaller areas if there is additional hazard such as use by a large number of people.

NOTE  Condition BD3 or BD4 of HD 384 also defines areas that require emergency lighting.

4.5 Emergency lighting for high risk task area lighting

The objective of high-risk task area lighting is to ensure the safety of people involved in a potentially
dangerous process or situation and to enable proper shut down procedures for the safety of other
occupants of the premises.
4.6 Standby lighting
If standby lighting is used to provide emergency escape lighting, the installation shall comply with the
provisions of this standard and the appropriate product and wiring standards.

5 Emergency escape lighting system design

5.1 Plan of premises
In order to ensure that the emergency lighting system is engineered in accordance with EN 1838 plans
showing the layout of the building and of all existing or proposed escape routes, fire alarm call points and
fire fighting equipment and indicating the positions of all structural items which may offer obstruction to
escape shall be provided before commencing system design.

5.2 Failure of normal supply to part of premises

Emergency escape lighting shall operate, in the event of failure of any part of the normal lighting supply.
Non-maintained and combined non-maintained emergency luminaires have to operate in the event of
failure of a normal lighting final circuit. In all cases, arrangements shall be made to ensure that local
emergency escape lighting will operate in the event of failure of normal supply to the corresponding local
area.
5.3 System integrity
The provision of highly reliable emergency escape lighting is essential. The illumination by the emergency
escape lighting system of a compartment of the escape route shall be from two or more luminaires so that
the failure of one luminaire does not plunge the route into total darkness or make the directional finding
effect of the system ineffective. For the same reason, two or more luminaires shall be used in each open
area (anti-panic).
NOTE  It is not normally possible to cater for an interruption of the normal lighting due solely to the failure of an individual lamp,
consideration should therefore be given to methods of eliminating any probable hazard which might arise due to the failure of this
lamp.
5.4 Specific areas requiring emergency lighting

Where national regulations do not apply, the provisions of emergency escape lighting given in EN 1838
cover the routes and locations detailed in 4.2 to 4.5 of this standard. Other areas of hazard or areas that
may need access in a normal lighting failure also require emergency lighting and are defined in 5.4.1 and
5.4.2 of this standard.
5.4.1 External areas in the immediate vicin
...