EN 50490:2008

SLOVENSKI STANDARD
01-januar-2009
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Electrical installations for lighting and beaconing of aerodromes - Technical requirements
for aeronautical ground lighting control and monitoring systems - Units for selective
switching and monitoring of individual lamps
Elektrische Anlagen für Beleuchtung und Befeuerung von Flugplätzen - Technische
Anforderungen für Steuer- und Überwachungssysteme von
Flugplatzbefeuerungsanlagen - Geräte für selektives Schalten und Überwachen
individueller Feuer
Installations électriques pour l'éclairage et le balisage des aérodromes - Exigences
techniques pour les systèmes de contrôle et de commande du balisage aéronautique au
sol - Unités pour la commutation sélective et le contrôle de lampes individuelles
Ta slovenski standard je istoveten z: EN 50490:2008
ICS:
91.140.50 Sistemi za oskrbo z elektriko Electricity supply systems
93.120 *UDGQMDOHWDOLãþ Construction of airports
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 50490
NORME EUROPÉENNE
August 2008
EUROPÄISCHE NORM
ICS 93.120
English version
Electrical installations for lighting and beaconing of aerodromes -
Technical requirements for aeronautical ground lighting control
and monitoring systems -
Units for selective switching and monitoring of individual lamps

Installations électriques pour l'éclairage  Elektrische Anlagen für Beleuchtung
et le balisage des aérodromes - und Befeuerung von Flugplätzen -
Exigences techniques pour les systèmes Technische Anforderungen
de contrôle et de commande du balisage für Steuer- und Überwachungssysteme
aéronautique au sol - von Flugplatzbefeuerungsanlagen -
Unités pour la commutation sélective Geräte für selektives Schalten
et le contrôle de lampes individuelles und Überwachen individueller Feuer

This European Standard was approved by CENELEC on 2008-04-01. 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, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the 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

© 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 50490:2008 E
Foreword
This European Standard was prepared by Working Group 1 of the Technical Committee CENELEC TC 97,
Electrical installations for lighting and beaconing of aerodromes.
The text of the draft was submitted to the Unique Acceptance Procedure and was approved by CENELEC as
EN 50490 on 2008-04-01.
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) 2009-04-01

– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2011-04-01
This European Standard has been prepared under a mandate given to CENELEC by the European
Commission and the European Free Trade Association and covers essential requirements of
EC Directive 2004/108/EC. See Annex ZZ.
__________
– 3 – EN 50490:2008
Contents
1 Scope . 4
2 Normative references . 4
3 Definitions . 5
4 General requirements . 6
4.1 Electrical connections . 6
4.2 Enclosure for indoor units . 6
4.3 Enclosure for outdoor units . 6
4.4 Mechanical impact protection . 6
4.5 Earthing . 6
4.6 Service temperature and humidity. 6
4.7 Reliability . 6
4.8 Electrical characteristics . 6
4.9 Mar k ing . 7
5 Functional requirements . 8
5.1 Switching . 8
5.2 Monitoring . 8
6 Type and routine tests . 9
6.1 G ener al . 9
6.2 Type tests . 9
6.3 Routine tests . 9
7 Test descriptions. 9
7.1 Visual inspection . 9
7.2 Mechanical test . 10
7.3 Environmental tests . 10
7.4 Electrical test . 10
7.5 Protection level test . 11
7.6 EMC emission and immunity test . 11
7.7 Functional test . 11
7.8 Operational test. 11
7.9 Ingress protection test . 11
Annex ZZ (informative) Coverage of Essential Requirements of EC Directives . 12
Bibliography . 13
Table 1 - Type and routine tests . 9

Introduction
Aeronautical Ground Lighting (AGL) at an aerodrome provides the pilots of aircraft and drivers of
vehicles moving on the aerodrome surface, with guidance information. Selective switching and
individual lamp monitoring is one way of controlling the AGL to achieve this.
1 Scope
This European Standard is intended to give general minimum frame requirements for units that are
independent of the technology used for switching and/or monitoring of individual or group of lamps in
an AGL series circuit.
This European Standard
• applies to the units that are directly electrically connected to the primary or secondary side of an
AGL series circuit and are needed to provide the selective switching and/or monitoring of lamps,
• does not cover communication protocols and application procedures,
• does not treat system aspects that influence the AGL operation.
NOTE These units may be used forming part of either a SMGCS or A-SMGCS to guide and/or control the surface
movement of aircraft by means of visual aids.
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 60439-1, Low voltage switchgear and control gear assemblies – Part 1: Type tested and partially
type-tested assemblies (IEC 60439-1)
EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529)
EN 61000-4-5, Electromagnetic compatibility (EMC) – Part 4-5: Testing and measurement
techniques - Surge Immunity test (IEC 61000-4-5)
EN 61000-6-2, Electromagnetic compatibility (EMC) – Part 6-2: Generic standards - Immunity for
industrial environments (IEC 61000-6-2)
EN 61000-6-3, Electromagnetic compatibility (EMC) – Part 6-3: Generic standards - Emission
standard for residential, commercial and light-industrial environments (IEC 61000-6-3)
EN 61000-6-4, Electromagnetic compatibility (EMC) – Part 6-4: Generic standards - Emission
standard for industrial environments (IEC 61000-6-4)
EN 61822, Electrical installations for lighting and beaconing of aerodromes - Constant current
regulators (IEC 61822)
EN 61823, Electrical installations for lighting and beaconing of aerodromes - AGL series transformers
(IEC 61823, mod.)
EN 62262, Degrees of protection provided by enclosures for electrical equipment against external
mechanical impacts (IK-Code) (IEC 62262)
IEC/TS 61000-6-5, Electromagnetic compatibility (EMC) – Part 6-5: Generic standards - Immunity for
power station and substation environments

– 5 – EN 50490:2008
3 Definitions
For the purposes of this standard the following definitions apply.
Where the terms voltage and current are used, they shall be r.m.s. values unless otherwise stated.
3.1
lamp
light emitting device
3.2
routine test
test for the purpose of checking manufactured products for compliance with this standard
3.3
service voltage
the nominal voltage at which a unit is designed to operate
3.4
type test
test to confirm that the product design and production processes are capable of providing products
that meet the requirements of this standard
3.5
type test sample
a sample consisting of one or more similar samples used for a type test
3.6
EUT
Equipment or Unit under Test
3.7
selective switching
switching of an individual lamp or an individual group of lamps
3.8
unit
complete physical assembly capable of performing functions
3.9
function
a task performed by a component or a unit
3.10
component
physical part of a unit
3.11
communication
transmission and receipt of data using an established protocol

4 General requirements
4.1 Electrical connections
Where a unit is provided with leads and/or connectors for connection to the primary or secondary
side of an AGL series circuit these shall comply, where applicable, with the requirements of
EN 61823 stated below:
• mechanical characteristics of connectors;
• electrical characteristics of the leads and connectors;
• mechanical strength of the interface of all leads with the unit, where the unit is intended to be
handled in the same way as a series circuit transformer.
4.2 Enclosure for indoor units
Units, intended for indoor use, shall provide protection at least according to IP 20 (EN 60529).
4.3 Enclosure for outdoor units
Units, intended for outdoor use, shall provide protection at least according to IP 68 (EN 60529). In
case the unit is intended for connection only to the secondary and only for installation above ground,
the IP-rating can be reduced to IP 54 (EN 60529). The housing material shall comply with the
applicable requirements of EN 61823.
4.4 Mechanical impact protection
The protection degree against external mechanical impacts (code IK EN 62262) shall be announced
by the manufacturer in the product data sheet.
4.5 Earthing
Any exposed conductive part of the housing shall be provided with an external earthing terminal to
enable independent safety earth connection.
4.6 Service temperature and humidity
For outdoor units the ambient temperature range shall be at least – 25 °C to + 55 °C. For indoor units
the ambient temperature range shall be at least 0 °C to + 50 °C. The range for relative humidity shall
be from 10 % to 95 % non-condensing. Where higher humidity rating is required or where condensing
can be expected, the unit shall be designed as intended for underground use. See 4.3.
4.7 Reliability
The MTBF of the unit shall be published in the manufacturer’s technical data.
4.8 Electrical characteristics
4.8.1
...