International lamp coding system (ILCOS) (IEC 61231:2010)

This International Standard gives the rules for the international lamp coding system and covers all lamp categories, excluding vehicle lamps. Coding for the main lamp types is specified and, for the others, will follow by amendments to this standard as appropriate. The object of the international lamp coding system is - to improve communication about the different types of lamps; - to help in discussions concerning interchangeability and compatibility of products; - to create a closer relationship between international standards and manufacturers' literature (for example the code could be given in future in the relevant parts of a standard); - to enable correct replacements of lamps; - to be used as a complementary marking on the luminaire; - to replace national and regional coding systems.

Internationales Lampenbezeichnungssystem (ILCOS) (IEC 61231:2010)

Système international de codification des lampes (ILCOS) (CEI 61231:2010)

La CEI 61231:2010 détaille les règles du système international de codification des lampes et couvre toutes les catégories de lampes, à l'exception des lampes pour véhicules. La codification des principaux types de lampes y est spécifiée; celle des autres types suivra, sous la forme d'amendements à cette norme. Cette première édition annule et remplace la deuxième édition de la CEI 61231, publiée comme spécification technique. Elle constitue une révision technique, dont les principales modifications sont indiquées ci-dessous: - introduction des DEL (Paragraphe 5.8).

Mednarodni sistem za kodiranje sijalk (ILCOS) (IEC 61231:2010)

Ta mednarodni standard podaja pravila za mednarodni sistem za kodiranje sijalk in zajema vse kategorije sijalk, izvzemajoč sijalke na vozilih. Kodiranje je določeno za glavne vrste sijalk, za ostale pa bo primerno sledilo kot dopolnila tega standarda. Namen mednarodnega sistema za kodiranje svetilk je
- izboljšati komunikacijo o različnih vrstah sijalk;
- pomagati pri razpravah glede medsebojne zamenljivosti in združljivosti proizvodov;
- ustvarjanje tesnejšega povezovanja med mednarodnimi standardi in proizvajalčevo literaturo (na primer, v prihodnosti bi koda lahko bila podana v pomembnih delih standarda);
- omogočiti pravilno postavitev sijalk;
- da se uporablja kot komplementarno označevanje svetil;
- da zamenja državne in regijske kodirne sisteme.

General Information

Status
Published
Publication Date
12-Jul-2010
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
22-Jun-2010
Due Date
27-Aug-2010
Completion Date
13-Jul-2010

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Mednarodni sistem za kodiranje sijalk (ILCOS) (IEC 61231:2010)Internationales Lampenbezeichnungssystem (ILCOS) (IEC 61231:2010)Système international de codification des lampes (ILCOS) (CEI 61231:2010)International lamp coding system (ILCOS) (IEC 61231:2010)29.140.01Žarnice na splošnoLamps in generalICS:Ta slovenski standard je istoveten z:EN 61231:2010SIST EN 61231:2010en,fr01-september-2010SIST EN 61231:2010SLOVENSKI

STANDARD
SIST EN 61231:2010
EUROPEAN STANDARD EN 61231 NORME EUROPÉENNE
EUROPÄISCHE NORM June 2010

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

Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC -

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

Ref. No. EN 61231:2010 E
ICS 29.140
English version
International lamp coding system (ILCOS) (IEC 61231:2010)
Système international de codification
des lampes (ILCOS) (CEI 61231:2010)
Internationales Lampenbezeichnungssystem (ILCOS) (IEC 61231:2010)

This European Standard was approved by CENELEC on 2010-06-01. 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, Croatia, 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.

SIST EN 61231:2010
EN 61231:2010 - 2 -

Foreword The text of document 34A/1345/FDIS, future edition 1 of IEC 61231, prepared by SC 34A, Lamps, of IEC TC 34, Lamps and related equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61231 on 2010-06-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. 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)
2011-03-01 – latest date by which the national standards conflicting
with the EN have to be withdrawn
(dow)

2013-06-01 Annex ZA has been added by CENELEC. __________ Endorsement notice The text of the International Standard IEC 61231:2010 was approved by CENELEC as a European Standard without any modification. __________

SIST EN 61231:2010
- 3 - EN 61231:2010 Annex ZA
(normative)

Normative references to international publications with their corresponding European publications

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.

NOTE

When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.

Publication Year Title EN/HD Year

IEC 60357 - Tungsten halogen lamps (non-vehicle) - Performance specifications EN 60357

IEC 60432-1 - Incandescent lamps - Safety specifications - Part 1: Tungsten filament lamps for domestic and similar general lighting purposes EN 60432-1 -

IEC 60432-2 - Incandescent lamps - Safety specifications - Part 2: Tungsten halogen lamps for domestic and similar general lighting purposes EN 60432-2 -

IEC 60838-2-2 - Miscellaneous lampholders -
Part 2-2: Particular requirements - Connectors for LED-modules EN 60838-2-2 -
IEC/TR 60887 - Glass bulb designation system for lamps - -
IEC 61167 - Metal halide lamps EN 61167 -
CIE Publication 29.2 - Guide on interior lighting - -
SIST EN 61231:2010
SIST EN 61231:2010

IEC 61231Edition 1.0 2010-01INTERNATIONAL STANDARD NORME INTERNATIONALEInternational lamp coding system (ILCOS)

Système international de codification des lampes (ILCOS)

INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE TICS 29.140 PRICE CODECODE PRIXISBN 2-8318-1075-7

® Registered trademark of the International Electrotechnical Commission

Marque déposée de la Commission Electrotechnique Internationale ® SIST EN 61231:2010

– 2 – 61231 © IEC:2010 CONTENTS FOREWORD...........................................................................................................................3 INTRODUCTION.....................................................................................................................5 1 Scope and object..............................................................................................................6 2 Normative references........................................................................................................6 3 Principles.........................................................................................................................6 4 Basic structure..................................................................................................................7 4.1 Letter section...........................................................................................................7 4.2 Figure section..........................................................................................................7 4.3 Length of the code...................................................................................................8 5 Lamp categories...............................................................................................................9 5.1 Tungsten filament lamps..........................................................................................9 5.2 Tungsten halogen lamps (non-vehicle)...................................................................12 5.3 Fluorescent lamps.................................................................................................13 5.4 High-pressure sodium vapour lamps......................................................................17 5.5 Low-pressure sodium vapour lamps.......................................................................18 5.6 High-pressure mercury vapour lamps.....................................................................19 5.7 Metal halide lamps.................................................................................................19 5.8 LED modules.........................................................................................................21 5.9 Special lamps........................................................................................................22 Annex A (informative)

Survey ILCOS L –

short version, letter section...................................23 Bibliography..........................................................................................................................24

Table 1 – Dimensions............................................................................................................15

SIST EN 61231:2010
61231 © IEC:2010 – 3 – INTERNATIONAL ELECTROTECHNICAL COMMISSION ____________
INTERNATIONAL LAMP CODING SYSTEM (ILCOS)

FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 61231 has been prepared by subcommittee 34A: Lamps, of IEC technical committee 34: Lamps and related equipment. This first edition cancels and replaces the second edition of IEC 61231, published as a technical specification. It constitutes a technical revision, of which the main changes are indicated below: – introduction of LED modules (Subclause 5.8). The text of this standard is based on the following documents: CDV Report on voting 34A/1345/CDV 34A/1374/RVC

Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. SIST EN 61231:2010

– 4 – 61231 © IEC:2010 The committee has decided that the contents of this publication will remain unchanged until the maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be

• reconfirmed, • withdrawn, • replaced by a revised edition, or • amended.
SIST EN 61231:2010

61231 © IEC:2010 – 5 – INTRODUCTION The lamp industry strives continuously to meet customers' needs. Its innovative power has led to a tremendous variety of different light sources. To enable customers and experts to find their way within the diversity of products, a general system for the coding of lamps has been developed. The code does not replace specific markings used by individual manufacturers on their lamps or in their catalogues, but it is promoted for cross-referencing purposes and, in due course, to replace national and regional lamp coding systems which already exist. NOTE The code does not give all the technical characteristics necessary to specify a lamp fully. For this the relevant lamp standard and/or the manufacturer’s literature have to be consulted.

SIST EN 61231:2010
– 6 – 61231 © IEC:2010 INTERNATIONAL LAMP CODING SYSTEM (ILCOS)

1 Scope and object This International Standard gives the rules for the international lamp coding system and covers all lamp categories, excluding vehicle lamps. Coding for the main lamp types is specified and, for the others, will follow by amendments to this standard as appropriate. The object of the international lamp coding system is – to improve communication about the different types of lamps; – to help in discussions concerning interchangeability and compatibility of products; – to create a closer relationship between international standards and manufacturers’ literature (for example the code could be given in future in the relevant parts of a standard); – to enable correct replacements of lamps; – to be used as a complementary marking on the luminaire; – to replace national and regional coding systems. 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. IEC 60357, Tungsten halogen lamps (non-vehicle) – Performance specifications IEC 60432-1, Incandescent lamps – Safety specifications – Part 1: Tungsten filament lamps for domestic and similar general lighting purposes IEC 60432-2, Incandescent lamps – Safety specifications – Part 2: Tungsten halogen lamps for domestic and similar general lighting purposes IEC 60838-2-2, Miscellaneous lampholders – Part 2-2: Particular requirements – Connectors for LED-modules IEC/TR 60887, Glass bulb designation system for lamps IEC 61167, Metal halide lamps CIE publication 29.2, Guide on interior lighting 3 Principles The international lamp coding system has been developed on the basis of the following principles. – It should be manufacturer-independent concerning its content and its wording. – A relationship between the coding system and international standards should be established. SIST EN 61231:2010

61231 © IEC:2010 – 7 – – It should be internationally acceptable. It is recognized that other systems with national and regional importance exist and that the change to an international code should be seen as a long-term process.

– The length of the code should be as short as possible and as long as necessary. Therefore, it should be possible to use the code in different lengths depending on the different purposes. – In view of the technical diversity of the different lamp categories, it would not be practical to define the code for all types in the same way; the code depends therefore in its composition on the technical needs of the different lamp categories. – The code should not replace manufacturer-specific marking on the lamp or in the catalogues, but should be used for cross-references in lamp and luminaire literature. – The allocation of codes is based on interchangeability and compatibility. An additional usage of the code on the lamp package should be envisaged for the future.

4 Basic structure The complete lamp code ILCOS consists of a letter section and a figure section.

4.1 Letter section The first letter of the letter section designates the lamp category as follows: I Tungsten filament lamps H Tungsten halogen lamps (non-vehicle) F Fluorescent lamps S High-pressure sodium lamps L Low-pressure sodium lamps Q High-pressure mercury lamps M Metal halide lamps D LED modules X Special lamps NOTE Vehicle lamps, including their coding, are covered by national and/or regional legislation. The next letters within the letter section give further details as outlined in the description of the different lamp categories. The letter section is separated from the rest by a hyphen. 4.2 Figure section The figure section consists of several blocks mainly containing figures. Each block, separated by hyphens, contains characteristic values of lamps such as – wattage; – voltage; – lamp cap; – dimensional values. As a hyphen is used to separate the blocks, it cannot be applied within a block. As a consequence, the sign of equality = is used instead of the hyphen, for example within the cap designation.

The sequence and the specific content of the blocks is determined for each lamp category and described in 5.1 to 5.8. SIST EN 61231:2010

– 8 – 61231 © IEC:2010 4.3 Length of the code 4.3.1 General The code can be used in different lengths depending on the purpose. In catalogues and leaflets, specialities, for example special applications, can be indicated with an asterisk (*) in the place where the difference occurs or at the end of the code and explained in a separate remark, also indicated with an asterisk (*). The code can be shortened by deleting parts from the end, not by deleting intermediate parts. In general, if ‘standard’ types are concerned, the dimension block can be omitted. Intermediate parts may be omitted, providing the separating signs such as hyphens (–) and slashes (/) are given. NOTE These shortening rules do not apply to the extended short version ILCOS LE. 4.3.2 Short version: ILCOS L The short version consists of the letter section or a part of it and is called ILCOS L. It can be used for the general classification of lamps. A survey of ILCOS L is given in Annex A. 4.3.3 Extended short version: ILCOS LE The extended short version, where applicable, consists of the first part of the letter section (ILCOS L) immediately followed (without spaces) by the relevant dimensions. 4.3.4 Standard version: ILCOS D The standard version gives the complete designation and consists of the letter section and (a part of) the figure section. The use of ILCOS D should enable the customer to find the correct lamp type, for example in the case of lamp replacement from a different manufacturer. It can be used for the purpose of marking luminaires, when suitable also in an abbreviated form. SIST EN 61231:2010

61231 © IEC:2010 – 9 – 5 Lamp categories For information about relevant lamp standards and lamp-related standards, see the IEC publications prepared by IEC technical committee 34. 5.1 Tungsten filament lamps 5.1.1 ILCOS L for tungsten filament lamps The ILCOS L code is built up as follows: Tungsten filament lamps

Non-reflector lamps
Reflector lamps

IA Large lamps (bulb diameter usually > 45 mm) Pear-shaped, mushroom or lamps with other shapes intended for use in the same luminaire

IB Compact bulb lamps (bulb diameter usually ≤ 45 mm) Candle, round bulb or lamps with other shapes intended for use in the same luminaire

IN Other non-reflector lamps (lamps outside the scope of IEC 60432-1)

After the first two letters IA, IB and IN the shape of the bulb follows, indicated as specified in IEC 60887. The main bulb shape types are --A pear-shaped --B candle (bulged) --C conical --G globular --M mushroom --P round bulb --S pigmy (straight-sided) --T tubular An example with a modifier is --BA candle with angular tip SIST EN 61231:2010

– 10 – 61231 © IEC:2010 For reflector lamps:
Reflector lamps IR

IRR R bulb reflector lamps IRA Pear-shaped bowl mirror lamps IRP Round bulb bowl mirror lamps IPAR Normal PAR bulb reflector lamps IPARD Dichroic PAR bulb reflector lamps

If it is necessary to indicate the finish or the colour of a lamp, or the specific kind of reflector or other technical details, this can be done after a slash as follows: /C clear /F frosted, frosted equivalently coated /W white

/R red /B blue /G green /Y yellow /V violet /P pink /A amber /O orange /S silver /X gold /N neodymium /D decorative filament design A second letter may be added for the following purposes: /-P to indicate pastel shades /-F to indicate a window /-T to indicate transparent colours Further technical details can be given after a second slash: //AX axial filament //TR transversal filament //RS rough service lamps //LT limited surface temperature //RT rough service with limited surface temperature SIST EN 61231:2010

61231 © IEC:2010 – 11 – Examples IAA/F Frosted pear-shaped lamps

IAM Mushroom lamps IAT/W White-coated tubular lamps intended for use in the same luminaire as pear-shaped lamps IBBA/C Clear candle lamps with angular tip IBP/R Red round bulb lamps IAG Globular lamps, intended for use in the same luminaire as pear-shaped lamps

IBT/W White-coated tubular lamps, intended for use in the same luminaire as round bulb lamps IBP IBC Conical lamps, intended for use in the same luminaire as round bulb lamps IBP IRA/S Pear-shaped bowl mirror lamp with silver reflector 5.1.2 ILCOS LE for tungsten filament lamps ILCOS LE consists of the first part of ILCOS L up to and including the shape indication followed by the number giving the nominal diameter of the lamp. Examples IAA60 Pear-shaped lamp with 60 mm nominal bulb diameter IBP45 Round bulb lamp with 45 mm nominal bulb diameter IAG80 Globular lamp with 80 mm nominal bulb diameter 5.1.3 ILCOS D for tungsten filament lamps ILCOS D consists of the following blocks: ILCOS L-wattage-rated voltage-lamp cap-dimensions – Wattage: For miniature and/or glow lamps, the lamp current can be indicated in place of the wattage. In that case, the lamp current value shall be immediately followed by a capital A. – Rated voltage: In case of a voltage range, two numbers are given separated by a slash.

– For airfield lamps the lamp voltage may be replaced by the lamp current value immediately followed by a capital A. – Dimensions: This block consists normally only of the number giving the nominal diameter. For tubular lamps the maximum overall length can be added after a slash. For reflector lamps, the beam angle can be added after a slash. In case of a non-symmetrical beam, two numbers separated by a slash may be given, the first describing the horizontal and the second the vertical beam angle. Examples IAA/C-40-220/230-E27-60 Clear pear-shaped lamp, 40 W, 220-230 V, cap E27, nominal diameter 60 mm IBB/W-40---35 White candle lamp, 40 W, nominal diameter 35 mm, rest not specified IRR-60-240-B22d-125/30 R bulb reflector lamp, 60 W, 240 V, cap B22d, type R125, beam angle 30° SIST EN 61231:2010

– 12 – 61231 © IEC:2010 5.2 Tungsten halogen lamps (non-vehicle) 5.2.1 ILCOS L for tungsten halogen lamps The first two letters will be HS Single-ended halogen lamps HD Double-ended halogen lamps HR Dichroic reflector halogen lamps HM Metal reflector halogen lamps HA Halogen lamps with aluminized glass reflector

HP Single-ended halogen lamps with proximity reflector Third letter to indicate the field of application of the lamp: --P Projection including overhead projection and micro-film/-fiche lamps --S Photo/Studio/Theatre/Video --A Airfield --T Traffic signal

--G General purpose (floodlight lamps are considered as general purpose) A fourth letter can be used to indicate self-shielded lamps. Self-shielded lamps are lamps designed to be suitable for use in open luminaires. Examples of self-shielded lamps are ELV lamps with integral outer envelope, low-pressure tungsten halogen lamps and mains voltage lamps which conform to IEC 60432-2 (for further information, see IEC 60357). ---S Self-shielded halogen lamp The bulb shape can be indicated after the third or fourth letter as described for tungsten filament lamps. If it is necessary to indicate the bulb finish, special colours or other technical details, this can be done after one or two slashes as described for tungsten filament lamps (see 5.1.1). Further technical details can be given after a second slash: //UB UV reduction //IB IR utilization //S Short neck Examples HSGST Single-ended general purpose halogen lamps, self-shielded, tubular shaped HDG Double-ended floodlight halogen lamps HRG Dichroic reflector general purpose halogen lamps HMGS Metal reflector general purpose halogen lamps, self-shielded 5.2.2 ILCOS LE for tungsten halogen lamps ILCOS LE consists of ILCOS L up to the first slash immediately followed by the dimension block as described in 5.2.3. Examples HRGS51 General purpose dichroic reflector lamp, self-shielded, with a reflector diameter of 51 mm SIST EN 61231:2010

61231 © IEC:2010 – 13 – HMGS37 General purpose metal reflector lamp, self-shielded, with a reflector diameter of 37 mm 5.2.3 ILCOS D for tungsten halogen lamps ILCOS D consists of the following blocks: ILCOS L-wattage-rated voltage-lamp cap-dimensions – Wattage: In the case of a two-filament lamp, the wattage of each filament is given combined by a (+) sign.

Where needed for further distinction, this block can be extended by a slash to give information concerning the colour temperature in the following way. The colour temperature of the lamp is divided by 100 and the number obtained is rounded to an integer. – Rated voltage: In case of a voltage range, two numbers are given separated by a slash.

For airfield lamps, the lamp voltage may be replaced by the lamp current value immediately followed by a capital A. – Dimensions: The content of this block depends on the specific characteristics of the different halogen lamp types. Nominal values are given, except for the bulb diameter of single-ended lamps. It can contain one value and, if needed for further discrimination, a second one after a slash as follows:

ILCOS L Dimensions (nominal)
HS –
Bulb diameter (max.)/light centre length
HD –
Contact to contact length Znom
HR –
Diameter of reflector/beam angle
HM –
Diameter of reflector/beam angle
HA –
Diameter of reflector/beam angle
HP –

Light centre length Examples HSG-20-12-G4-22 Single-ended general purpose halogen lamp, 20 W, 12 V, G4 base, light centre length 22 mm HDS-800-220/230-R7s-74,9 Double-ended photo/studio halogen lamp, 800 W, 220-230 V, R7s cap, contact-to-contact length 74,9 mm HRGS-50-12-GX5.3-51/30 Dichroic reflector general purpose halogen lamp, self-shielded, 50 W, 12 V, base GX5.3, diameter 51 mm, beam angle 30° 5.3 Fluorescent lamps 5.3.1 ILCOS L for fluorescent lamps The first two letters will be FD

Double-capped lamps FS
Single-capped lamps FB

Self-ballasted lamps Additional information can be indicated by a third letter as follows: FDR Double-capped lamps with internal reflector

FDU Double-capped lamps, U-shaped SIST EN 61231:2010

– 14 – 61231 © IEC:2010 FSD Single-capped lamps, dual shaped FSQ Single-capped lamps, quad shaped FSS Single-capped lamps, square shaped FSM Single-capped lamps, multi-limbed FSC Single-capped lamps, circular shaped FSG Single-capped lamps, globular For FD and FS lamps a last letter can be added to indicate: --H

For high frequency ballasts only --I

Induction type lamp For FB lamps the shape can be indicated as described for tungsten filament lamps (see 5.1.1). A last letter can be added to indicate: ---H

Integral HF type ballast ---I

Integral induction type ballast Colours or other bulb finishes can be indicated after a slash, as described for tungsten filament lamps (see 5.1.1). Further technical details can be given after a second slash as follows: //L

For use in low ambient temperatures //H
For use in high ambient temperatures //P

Photocell integrated //PL Photocell integrated and for use in low ambient temperatures //PH Photocell integrated and for use in high ambient temperatures 5.3.2 ILCOS LE for fluorescent lamps ILCOS LE consists of ILCOS L (up to the first slash) immediately followed by the relevant dimensions. Examples FD26 Double-capped lamp with nominal tube diameter 26 mm FD38/1200 Double-capped lamp with nominal tube diameter 38 mm and nominal tube length 1 200 mm (hence 40 W).

FD/1200 Double-capped lamp with nominal tube length 1 200 mm (36 W or 40 W) 5.3.3 ILCOS D for fluorescent lamps ILCOS D consists of the following blocks: ILCOS L-wattage-starting details (note)-lamp cap-dimensions NOTE For self-ballasted lamps, the rated voltage is given instead of the starting details; if necessary, extended after a slash by the rated frequency. – Wattage: The block specifying wattage can be extended by a slash to give information concerning the colour temperature and after another slash concerning the colour-rendering properties in the following way.

The colour temperature of the lamp is divided by 100 and the number obtained is rounded to an integer.

SIST EN 61231:2010
61231 © IEC:2010 – 15 –

The colour-rendering properties are indicated by one of the following CIE (see CIE publi-cation 29.2) colour-rendering groups: 1A for Ra ≥ 90; 1B for Ra = 80-89; 2A for Ra = 70-79; 2B for Ra = 60-69; 3

for Ra = 40-59; 4

for Ra = 20-39. – Starting details: The starting details for FD and FS lamps are given as follows: - -

No starting details for induction type -I-
Internal starter -E-
External starter, preheated -L/ - Starterless

-LC/ - Starterless, low starting voltage with conductive strip or layer --/P/ - Preheated --/N- Non-preheated --/-/H- Cathodes of high resistance (only for starterless) --/-/L- Cathodes of low resistance (only for starterless)

The information concerning the starting details can be abbreviated, where ap
...

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