EN IEC 60238:2018/A2:2021

Edison screw lampholders

Lampenfassungen mit Edisongewinde

Douilles à vis Edison pour lampes

Okovi za žarnice in sijalke z Edisonovim navojem - Dopolnilo A2 (IEC 60238:2016/A2:2020)

General Information

• Status: Published
• Publication Date: 30-Sep-2021
• ICS: 29.140.10 - Lamp caps and holders
• Technical Committee: CLC/TC 34 - 'Lamps and related equipment
• Drafting Committee: IEC/SC 34B - IEC_SC_34B
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 01-Oct-2021
• Completion Date: 01-Oct-2021
• Directive: 2014/35/EU - Directive 2014/35/EU of the European Parliament and of the Council of 26 February 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of electrical equipment designed for use within certain voltage limits
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Ref Project: SIST EN IEC 60238:2018/A2:2021 - Edison screw lampholders (IEC 60238:2016/A2:2020)

Relations

• Amends: EN IEC 60238:2018 - Edison screw lampholders
• Effective Date: 03-Apr-2018

Overview

The EN IEC 60238:2018/A2:2021 standard specifies requirements for Edison screw lampholders, a critical component in lighting technology providing electrical connections for lamps with Edison screw bases. Developed and published by the European Committee for Electrotechnical Standardization (CENELEC), this standard is aligned with the International Electrotechnical Commission’s IEC 60238:2016/A2:2020 amendment and facilitates harmonization and safety compliance for lampholder manufacturing and usage within European markets. The amendment focus includes updates to material specifications, heat resistance tests, insulation coordination, and mechanical design for enhanced safety and reliability.

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Key Topics

• Material and Insulation Requirements
  EN IEC 60238:2018/A2:2021 clarifies insulation parameters, specifically for inorganic insulating materials such as glass and ceramics. It stipulates that creepage distances for these materials do not need to exceed their clearance distances if they do not track, improving design flexibility while ensuring safety according to IEC 60664-1.

• Heat and Fire Resistance Testing
  The amendment removes alternative testing methods for indentation diameter calculation during ball pressure tests (IEC 60695-10-2), aligning lampholder heat resistance evaluations with up-to-date fire hazard testing standards for consistent safety validation.

• Mechanical and Electrical Safety
  The document emphasizes protection against electrical hazards, mechanical reliability, and appropriate assembly conditions to prevent electrical shock, fire risk, or equipment damage. It defines minimum clearances, creepage distances, and locking device configurations to ensure secure and safe connections.

• Compliance with EU Directive 2014/35/EU
  This standard supports essential safety requirements of the Low Voltage Directive (LVD), offering presumption of conformity for lampholders marketed within the EU and EFTA regions when implemented at the national level.

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Applications

• Lighting Industry Manufacturing
  Manufacturers use EN IEC 60238:2018/A2:2021 as a benchmark to design and produce Edison screw lampholders that meet rigorous safety, interchangeability, and performance standards for residential, commercial, and industrial lighting fixtures.

• Safety Certification and Testing Laboratories
  Testing facilities reference this standard to perform conformance tests, including mechanical stress and heat resistance, ensuring lampholders meet regulatory requirements before market release.

• Electrical Equipment Design
  Designers of luminaire assemblies and lighting equipment integrate requirements from this standard for lampholder components, ensuring compatibility, safety, and compliance with European electrical safety laws.

• Quality Assurance and Regulatory Compliance
  Organizations involved in product compliance rely on this standard to maintain adherence to European market regulations, reducing risk of non-compliance, recalls, or safety incidents.

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Related Standards

• IEC 60061 Series: Standards for lamp caps and holders, providing foundational definitions and measurements for interchangeability and safety in lamp fittings.
• IEC 60664-1: Insulation coordination for electrical equipment, crucial for establishing creepage and clearance distances.
• IEC 60695-10-2: Fire hazard testing for electrical equipment, including ball pressure tests to assess heat resistance.
• IEC 60399: Standard for barrel threads on lampholders with shade holder rings, enhancing mechanical compatibility.
• EN 60529: Degree of protection provided by enclosures (IP Code), relevant for lampholders used in protected or damp environments.
• Directive 2014/35/EU (Low Voltage Directive): European regulatory framework for electrical equipment safety, supported by compliance with EN IEC 60238.

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By adhering to EN IEC 60238:2018/A2:2021, stakeholders within the lighting industry ensure that Edison screw lampholders deliver consistent safety, quality, and performance at the intersection of electrical engineering and regulatory compliance. This fosters market confidence, product reliability, and user safety across European and global markets.

Standards Content (Sample)

SLOVENSKI STANDARD
01-december-2021
Okovi za žarnice in sijalke z Edisonovim navojem - Dopolnilo A2 (IEC
60238:2016/A2:2020)
Edison screw lampholders (IEC 60238:2016/A2:2020)
Lampenfassungen mit Edisongewinde (IEC 60238:2016/A2:2020)
Douilles à vis Edison pour lampes (IEC 60238:2016/A2:2020)
Ta slovenski standard je istoveten z: EN IEC 60238:2018/A2:2021
ICS:
29.140.10 Grla in držala žarnic Lamp caps and holders
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60238:2018/A2

NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2021
ICS 29.140.10
English Version
Edison screw lampholders
(IEC 60238:2016/A2:2020)
Douilles à vis Edison pour lampes Lampenfassungen mit Edisongewinde
(IEC 60238:2016/A2:2020) (IEC 60238:2016/A2:2020)
This amendment A2 modifies the European Standard EN IEC 60238:2018; it was approved by CENELEC on 2020-02-24. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60238:2018/A2:2021 E

European foreword
The text of document 34B/2029/CDV, future IEC 60238/A2, prepared by SC 34B "Lamp caps and
holders" of IEC/TC 34 "Lighting" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 60238:2018/A2:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-04-01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-10-01
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a Standardization Request given to CENELEC by the
European Commission and the European Free Trade Association, and supports essential
requirements of EU Directive(s) / Regulation(s).
For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZZ, which is an
integral part of this document.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60238:2016/A2:2020 was approved by CENELEC as a
European Standard without any modification.
1 Modifications to Annex ZA, "Normative references to international
publications with their corresponding European publications", and
Annex ZZ, "Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be covered"
Replace Annex ZA and Annex ZZ with the following:
"
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60061-1 (mod) 1969 Lamp caps and holders together with EN 60061-1 1993
gauges for the control of interchangeability
and safety - Part 1: Lamp caps
IEC 60061-2 (mod) 1969 Lamp caps and holders together with EN 60061-2 1993
gauges for the control of interchangeability
and safety - Part 2: Lampholders
IEC 60061-3 (mod) 1969 Lamp caps and holders together with EN 60061-3 1993
gauges for the control of interchangeability
and safety - Part 3: Gauges
Environmental testing - Part 2-20: Tests - EN 60068-2-20 2008
Test T: Test methods for solderability and
resistance to soldering heat of devices with
leads
IEC 60068-2-32 1975 Basic environmental testing procedures - EN 60068-2-32 1993
Part 2-32: Tests - Test Ed: Free fall
IEC 60068-2-75 2014 Environmental testing - Part 2-75: Tests - EN 60068-2-75 2014
Test Eh: Hammer tests
IEC 60112 2003 Method for the determination of the proof EN 60112 2003
and the comparative tracking indices of
solid insulating materials
+ A1 2009 + A1 2009
IEC 60227 series Polyvinyl chloride insulated cables of rated - -
voltages up to and including 450/750 V -
Part 1: General requirements
IEC 60245 series Rubber insulated cables - Rated voltages - -
up to and including 450/750 V - Part 1:
General requirements
IEC 60352-1 1997 Solderless connections - Part 1: Wrapped EN 60352-1 1997
connections - General requirements, test
methods and practical guidance
IEC 60399 2004 Barrel thread for lampholders with shade EN 60399 2004
+ A1 2008 holder ring + A1 2008
Publication Year Title EN/HD Year
IEC 60417 2002 Graphical symbols for use on equipment - -
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- - + corrigendum 1993
May
+ A1 1999 + A1 2000
+ A2 2013 + A2 2013
IEC 60598-1 (mod) 2014 Luminaires - Part 1: General requirements EN 60598-1 2015
and tests
IEC 60630 (mod) 1994 Maximum lamp outlines for incandescent EN 60630 1998
+ A7 2014 lamps + A7 2015
IEC 60695-2-11 2014 Fire hazard testing - Part 2-11: EN 60695-2-11 2014
Glowing/hot-wire based test methods -
Glow-wire flammability test method for
end-products (GWEPT)
IEC 60695-11-5 2016 Fire hazard testing - Part 11-5: Test flames EN 60695-11-5 2017
- Needle-flame test method - Apparatus,
confirmatory test arrangement and
guidance
1)
IEC 61058-1 (mod) 2000 Switches for appliances - Part 1: General EN 61058-1 2002
requirements
ISO 4046-4 2002 Paper, board, pulps and related terms - - -
Vocabulary - Part 4: Paper and board
grades and converted products
1) EN 61058-1:2002 consists of IEC 61058-1:2000 (modified) and IEC 61058-1:2000/A1:2001 (not modified).
Annex ZZ
(informative)
Relationship between this European standard and the safety
objectives of Directive 2014/35/EU [2014 OJ L96] aimed to be
covered
This European standard has been prepared under a Commission’s standardisation request relating to
harmonised standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to s
...