EN 60950-1:2006/A2:2013

Information technology equipment - Safety - Part 1: General requirements

2019-12-10: TC 108X decision: link GPSD was for sound pressure requirements personal music players. GPSD citation no longer needed because most music players are RED. Link citation under GPSD removed.
2019-10-01: PR reactivated further to D156/C057 (extension of DOW of the superseding EN)
FprAE (PR=23360) merged and published as EN 60950-1:2006/A2:2013(PR= 23359), with the implementation dates of FprAE

Einrichtungen der Informationstechnik - Sicherheit - Teil 1: Allgemeine Anforderungen

Matériel de traitement de l'information - Sécurité - Partie 1: Exigences générales

Oprema za informacijsko tehnologijo - Varnost - 1. del: Splošne zahteve - Dopolnilo A2 (IEC 60950-1:2005/A2:2013, spremenjen)

Ta standard velja za opremo za informacijsko tehnologijo z omrežnim napajanjem ali baterijskim napajanjem, vključno z električno poslovno opremo in z njo povezano opremo z OCENJEVALNO NAPETOSTJO, ki ne presega 600 V. Ta standard prav tako velja za takšne vrste opreme za informacijsko tehnologijo: - načrtovano za uporabo v telekomunikacijski opremi terminalov in opremi za telekomunikacijsko omrežno infrastrukturo, ne glede na vir napajanja; - načrtovano in namenjeno za neposredno povezavo ali uporabljeno kot infrastrukturno opremo v RAZDELITVENEM SISTEMU KABLOV, ne glede na vir napajanja; - načrtovano tako, da uporablja IZMENIČNO OMREŽNO NAPAJANJE kot medij za prenos informacij (glej klavzulo 6, opomba 4 in 7.1, opomba 4).   Ta standard prav tako velja za sestavne dele in podsklope, namenjene vključitvi v opremo za informacijsko tehnologijo. Ne pričakuje se, da so takšni sestavni deli in podsklopi v skladu z vsakim vidikom standarda, pod pogojem, da je celotna oprema za informacijsko tehnologijo, ki vsebuje takšne sestavne dele in podsklope, skladna.

General Information

• Status: Withdrawn
• Publication Date: 22-Aug-2013
• Withdrawal Date: 01-Jul-2016
• ICS: 35.020 - Information technology (IT) in general
• ICS: 35.260 - Office machines
• Technical Committee: CLC/TC 108X - Safety of electronic equipment within the fields of Audio/Video, Information Technology and Communication Technology
• Drafting Committee: IEC/TC 108 - IEC_TC_108
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 20-Dec-2020
• Completion Date: 23-Sep-2025
• Directive: 1999/5/EC - Directive 1999/5/EC of the European Parliament and of the Council of 9 March 1999 on radio equipment and telecommunications terminal equipment and the mutual recognition of their conformity
• Directive: 2001/95/EC - Directive 2001/95/EC of the European Parliament and of the Council of 3 December 2001 on general product safety
• Directive: 2006/95/EC - Directive 2006/95/EC of the European Parliament and of the Council of 12 December 2006 on the harmonisation of the laws of Member States relating to electrical equipment designed for use within certain voltage limits (codified version)
• 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
• Directive: 2014/53/EU - Directive 2014/53/EU of The European Parliament and of the Council of 16 April 2014 on the harmonisation of the laws of the Member States relating to the making available on the market of radio equipment and repealing Directive 1999/5/EC
• Mandate: M/511 - Mandate to CEN, CENELEC and ETSI relating to harmonised standards in the field of the Low Voltage Directive
• Mandate: M/536 - [C(2015)536] Standardisation request as regards radio equipment in support of Directive 2014/53/EU
• Ref Project: SIST EN 60950-1:2006/A2:2014 - Information technology equipment - Safety - Part 1: General requirements

Relations

• Replaced By: EN 62368-1:2014 - Audio/video, information and communication technology equipment - Part 1: Safety requirements (IEC 62368-1:2014, modified)
• Effective Date: 28-Jan-2023
• Amends: EN 60950-1:2006 - Information technology equipment - Safety - Part 1: General requirements
• Effective Date: 29-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2014
Oprema za informacijsko tehnologijo - Varnost - 1. del: Splošne zahteve -
Dopolnilo A2 (IEC 60950-1:2005/A2:2013, spremenjen)
Information technology equipment - Safety - Part 1: General requirements
Einrichtungen der Informationstechnik - Sicherheit - Teil 1: Allgemeine Anforderungen
Matériel de traitement de l'information - Sécurité - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: EN 60950-1:2006/A2:2013
ICS:
35.020 Informacijska tehnika in Information technology (IT) in
tehnologija na splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN 60950-1/A2
NORME EUROPÉENNE
August 2013
EUROPÄISCHE NORM
ICS 35.020; 35.260
English version
Information technology equipment -
Safety -
Part 1: General requirements
(IEC 60950-1:2005/A2:2013, modified)

Matériel de traitement de l'information -  Einrichtungen der Informationstechnik -
Sécurité - Sicherheit -
Partie 1: Exigences générales Teil 1: Allgemeine Anforderungen
(CEI 60950-1:2005/A2:2013, modifié) (IEC 60950-1:2005/A2:2013, modifiziert)

This amendment A2 modifies the European Standard EN 60950-1:2006; it was approved by CENELEC on 2013-
07-02. 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, 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.

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.
Ref. No. EN 60950-1:2006/A2:2013 E

Foreword
The text of document 108/507/FDIS, future IEC 60950-1:2005/A2, prepared by IEC/TC 108 "Safety of
electronic equipment within the field of audio/video, information technology and communication
technology" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
A draft amendment, which covers common modifications to IEC 60950-1:2005/A2:2013, was prepared
by CLC/TC 108X, "Safety of electronic equipment within the fields of Audio/Video, Information
Technology and Communication Technology" and approved by CENELEC.
The following dates are fixed:
• latest date by which this document has to be implemented
(dop) 2014-07-02
at national level by publication of an identical
national standard or by endorsement
(dow) 2016-07-02
• latest date by which the national standards conflicting
with this document have to be withdrawn
Clauses, subclauses, notes, tables, figures and annexes which are additional to those in IEC 60950-1
are prefixed “Z”.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
This standard covers the Principle Elements of the Safety Objectives for Electrical Equipment
Designed for Use within Certain Voltage Limits (LVD - 2006/95/EC).
__________
- 3 - EN 60950-1:2006/A2:2013
Endorsement notice
The text of the International Standard IEC 60950-1:2005/A2:2013 was approved by CENELEC as a
European Standard with agreed common modifications.
COMMON MODIFICATIONS
Contents
Add the following:
Annex ZD (informative) IEC and CENELEC code designations for flexible cords
Whole document
Delete all the “country” notes in the reference document according to the following list:
2.7.1 Note * 2.10.3.1 Note 2 6.2.2 Note
* Note of secretary: Text of Common Modification remains unchanged
For special national conditions, see Annex ZB.
3 Wiring, connections and supply
3.2.5.1 AC power supply cords
Add the following Note:
NOTE Z1 The harmonised code designations corresponding to the IEC cord types are given in Annex ZD.

Replace the entire Annex ZA by the following:
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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
- - Sound system equipment: EN 50332-1 -
Headphones and earphones
associated with portable audio
equipment — Maximum sound
pressure level measurement
methodology and limit
considerations —
Part 1: General method for "one
package equipment"
- - Sound system equipment: EN 50332-2 -
Headphones and earphones
associated with portable audio
equipment — Maximum sound
pressure level measurement
methodology and limit
considerations —
Part 2: Matching of sets with
headphones if either or both are
offered separately
- - Insulating, sheathing and covering EN 50363 all parts
materials for low-voltage energy
cables
- - Electrical test methods for low EN 50395 -
voltage energy cables
- - Non electrical test methods for EN 50396 -
low voltage energy cables
IEC 60065 (mod) 2001 Audio, video and similar electronic EN 60065 2002

A1 (mod) 2005 apparatus – Safety requirements A1 2006

A11 2008
A2 (mod) 2010 A2 2010
A12 2011
IEC 60068-2-78 - Environmental testing – EN 60068-2-78 -
Part 2-78: Tests – Test Cab:
Damp heat, steady state
- 5 - EN 60950-1:2006/A2:2013
Publication Year Title EN/HD Year
IEC 60073 - Basic and safety principles for EN 60073 -
man-machine interface, marking
and identification – Coding
principles for indication devices
and actuators
IEC/TR 60083 - Plugs and socket-outlets for - -
domestic and similar general use
standardized in member countries
of IEC
1)
IEC 60085 2004 Electrical insulation – Thermal EN 60085
evaluation and designation
Method for the determination of
IEC 60112 - EN 60112 -
the proof and the comparative
tracking indices of solid insulating
materials
IEC 60127-1 - Miniature fuses – EN 60127-1 -
Part 1: Definitions for miniature
fuses and general requirements
for miniature fuse-links
2)
IEC 60227-1 2007 Polyvinyl chloride insulated cables -
-
of rated voltages up to and
including 450/750 V –
Part 1: General requirements
2)
IEC 60227-2 1997 Polyvinyl chloride insulated cables -
-
A1 2003 of rated voltages up to and
including 450/750 V –
Part 2: Test methods
3)
IEC 60245 all parts Rubber insulated cables – Rated -
-
voltages up to and including
450/750V
IEC 60309 all parts Plugs, socket-outlets and EN 60309 all parts
couplers for industrial purposes –
Part 1: General requirements
IEC 60317 all parts Specifications for particular types EN 60317 all parts
of winding wires
IEC 60317-43 - Specifications for particular types EN 60317-43 -
of winding wires –
Part 43: Aromatic polyimide tape
wrapped round copper wire, class
———————
1)
IEC 60085:2004 is superseded by IEC 60085:2007 which is harmonised as EN 60085:2008.
2)
The HD 21 series is related to, but not directly equivalent with the IEC 60227 series. Also EN 50363, EN 50395 and
EN 50396 are to be taken into account.
3)
The HD 22 series is related to, but not directly equivalent with the IEC 60245 series. Also EN 50363, EN 50395 and
EN 50396 are to be taken into account.

Publication Year Title EN/HD Year
IEC 60320 all parts Appliance couplers for household EN 60320 all parts
and similar general purposes
IEC 60364-1 (mod) 2001 Electrical installations of HD 384.1 S2 2001
buildings –
Part 1: Fundamental principles,
assessment of general
characteristics, definitions
IEC 60384-14 2005 Fixed capacitors for use in EN 60384-14 2005
electronic equipment –
Part 14: Sectional specification:
Fixed capacitors for
electromagnetic interference
suppression and connection to
the supply mains
IEC 60417 Data- Graphical symbols for use on - -
base equipment
4)
IEC 60664-1 1992 Insulation coordination for EN 60664-1
A1 2000 equipment within low-voltage
A2 2002 systems –
Part 1: Principles, requirements
and tests
IEC 60695-2-11 - Fire hazard testing – EN 60695-2-11 -
Part 2-11: Glowing/hot-wire based
test methods – Glow-wire
flammability test method for end-
products
IEC 60695-2-20 - Fire hazard testing – - -
Part 2-20: Glowing/hot-wire based
test methods – Hot-wire coil
ignitability – Apparatus, test
method and guidance
IEC 60695-10-2 - Fire hazard testing – EN 60695-10-2 -
Part 10-2: Abnormal heat – Ball
pressure test
IEC 60695-10-3 - Fire hazard testing – EN 60695-10-3 -
Part 10-3: Abnormal heat – Mould
stress relief distortion test
IEC 60695-11-3 - Fire hazard testing – EN 60695-11-3 -
Part 11-3: Test flames –500 W
flames – Apparatus and
confirmational test methods
IEC 60695-11-4 - Fire hazard testing – EN 60695-11-4 -
Part 11-4: Test flames –50 W
flame – Apparatus and
confirmational test method
———————
4)
IEC 60664-1:1992 is superseded by IEC 60664-1:2007 which is harmonised as EN 60664-1:2007.

- 7 - EN 60950-1:2006/A2:2013
Publication Year Title EN/HD Year
IEC 60695-11-5 2004 Fire hazard testing – EN 60695-11-5 2004
Part 11-5: Test flames – Needle-
flame test method – Apparatus,
confirmatory test arrangement
and guidance
IEC 60695-11-10 - Fire hazard testing – EN 60695-11-10 -
Part 11-10: Test flames – 50 W
horizontal and vertical flame test
methods
IEC 60695-11-20 - Fire hazard testing – EN 60695-11-20 -
Part 11-20: Test flames – 500 W
flame test methods
5)
IEC 60730-1 (mod) 1999 Automatic electrical controls for EN 60730-1
A1 2003 household and similar use – A1
Part 1: General requirements
IEC 60747-5-5 2007 Semiconductor devices – Discrete EN 60747-5-5 2011
devices – Part 5-5: Optoelectronic
devices – Photocouplers
IEC 60825-1 - Safety of laser products – EN 60825-1 -
Part 1: Equipment classification
and requirements
IEC 60825-2 - Safety of laser products – EN 60825-2 -
Part 2: Safety of optical fibre
communication systems (OFCS)
IEC/TR 60825-9 - Safety of laser products – - -
Part 9: Compilation of maximum
permissible exposure to
incoherent optical radiation
IEC 60825-12 - Safety of laser products – EN 60825-12 -
Part 12: Safety of free space
optical communication systems
used for transmission of
information
IEC 60851-3 2009 Winding wires – Test methods – EN 60851-3 2009
Part 3: Mechanical properties
IEC 60851-5 2008 Winding wires – Test methods – EN 60851-5 2008
Part 5: Electrical properties
IEC 60851-6 1996 Winding wires – Test methods – EN 60851-6 1996
A1 1997 Part 6: Thermal properties A1 1997
A2 2003 A2 2004
———————
5)
IEC 60730-1:1999 is superseded by IEC 60730-1:2000 which is harmonised as EN 60730-1:2011, modified.

Publication Year Title EN/HD Year
IEC 60885-1 1987 Electrical test methods for electric - -
cables –
Part 1: Electrical tests for cables,
cords and wires for voltages up to
and including 450/750 V
IEC 60906-1 - IEC system of plugs and socket- - -
outlets for household and similar
purposes –
Part 1: Plugs and socket-outlets
16 A 250 V a.c.
IEC 60906-2 - IEC system of plugs and socket- - -
outlets for household and similar
purposes –
Part 2: Plugs and socket-outlets
15 A 125 V a.c. and 20 A 125 V
a.c.
IEC 60947-1 - Low-voltage switchgear and EN 60947-1 -
controlgear –
Part 1: General rules
IEC 60990 1999 Methods of measurement of touch EN 60990 1999
current and protective conductor
current
IEC 60998-1 - Connecting devices for low- EN 60998-1 -
voltage circuits for household and
similar purposes –
Part 1: General requirements
IEC 60999-1 - Connecting devices – Electrical EN 60999-1 -
copper conductors – Safety
requirements for screw-type and
screwless-type clamping units –
Part 1: General requirements and
particular requirements for
clamping units for conductors
from 0,2 mm² up to 35 mm²
(included)
IEC 60999-2 - Connecting devices – Electrical EN 60999-2 -
copper conductors – Safety
requirements for screw-type and
screwless-type clamping units –
Part 2: Particular requirements for
clamping units for conductors
above 35 mm² up to 300 mm²
(included)
IEC 61051-2 1991 Varistors for use in electronic - -
equipment –
Part 2: Sectional specification for
surge suppression varistors
IEC 61058-1 (mod) 2000 Switches for appliances – EN 61058-1 2002
A1 2001 Part 1: General requirements
A2 2007 A2 2008
- 9 - EN 60950-1:2006/A2:2013
Publication Year Title EN/HD Year

IEC 62133 2012 Secondary cells and batteries EN 62133 2013
containing alkaline or other non-
acid electrolytes – Safety
requirements for portable sealed
secondary cells, and for batteries
made from them, for use in
portable applications
IEC 62368-1 - Audio/video, information and FprEN 62368 -
communication technology
equipment –
Part 1: Safety requirements
IEC 62471 (mod) 2006 Photobiological safety of lamps EN 62471 2008
and lamp systems
ISO 178 - Plastics - Determination of flexural EN ISO 178 -
properties
ISO 179 all parts Plastics - Determination of Charpy EN ISO 179 all parts
impact properties
ISO 180 - Plastics - Determination of Izod EN ISO 180 -
impact strength
ISO 261 - ISO general purpose metric screw - -
threads - General plan
ISO 262 - ISO general purpose metric screw - -
threads - Selected sizes for
screws, bolts and nuts
ISO 527 all parts Plastics – Determination of tensile EN ISO 527 all parts
properties
ISO 3864 all parts Graphical symbols – Safety - -
colours and safety signs
ISO 4892-1 - Plastics – Methods of exposure to EN ISO 4892-1 -
laboratory light sources –
Part 1: General guidance
ISO 4892-2 - Plastics – Methods of exposure to EN ISO 4892-2 -
laboratory light sources –
Part 2: Xenon-arc lamps
ISO 4892-4 - Plastics – Methods of exposure to - -
laboratory light sources –
Part 4: Open-flame carbon-arc
lamps
ISO 7000 - Graphical symbols for use on - -
equipment – Registered symbols
ISO 8256 - Plastics – Determination of EN ISO 8256 -
tensile-impact strength
Publication Year Title EN/HD Year
ISO 9772 - Cellular plastics – Determination - -
of horizontal burning
characteristics of small specimens
subjected to a small flame
ISO 9773 - Plastics – Determination of EN ISO 9773 -
burning behaviour of thin flexible
vertical specimens in contact with
a small-flame ignition source
ITU-T - Resistibility tests for - -
Recommendation telecommunication equipment
K44 exposed to overvoltages and
overcurrents – Basic
Recommendation
- 11 - EN 60950-1:2006/A2:2013
Annex ZB
(normative)
Special national conditions
Change the existing special national conditions as follows:
Clause Special national condition
1.7.2.1 In Denmark, Finland, Norway and Sweden, CLASS I PLUGGABLE EQUIPMENT
TYPE A intended for connection to other equipment or a network shall, if safety relies on
connection to protective earth or if surge suppressors are connected between the
network terminals and accessible parts, have a marking stating that the equipment must
be connected to an earthed mains socket-outlet.
The marking text in the applicable countries shall be as follows:
In Denmark: “Apparatets stikprop skal tilsluttes en stikkontakt med jord, som giver
forbindelse til stikproppens jord.”
In Finland: "Laite on liitettävä suojakoskettimilla varustettuun pistorasiaan"
In Norway: “Apparatet må tilkoples jordet stikkontakt”
In Sweden: “Apparaten skall anslutas till jordat uttag”
1.7.5 In Denmark, socket-outlets for providing power to other equipment shall be in
accordance with the DS 60884-2-D1:2011.
For class I equipment the following Standard Sheets are applicable: DK 1-3a, DK 1-1c,
DK 1-1d, DK 1-5a or DK 1-7a, with the exception for STATIONARY EQUIPMENT where
the socket-outlets shall be in accordance with Standard Sheet DK 1-1b, DK 1-1c,
DK 1-1d or DK 1-5a.
Socket outlets intended for providing power to Class II apparatus with a rated current of
2,5 A shall be in accordance with DS 60884-2-D1 standard sheet DKA 1-4a. Other
current rating socket outlets shall be in compliance with by DS 60884-2-D1 Standard
Sheet DKA 1-3a or DKA 1-3b.
Justification
the Heavy Current Regulations, 6c

Clause Special national condition
3.2.1.1 In Denmark, supply cords of single-phase equipment having a rated current not
exceeding 13 A shall be provided with a plug according to DS 60884-2-D1.
CLASS I EQUIPMENT provided with socket-outlets with earth contacts or which are
intended to be used in locations where protection against indirect contact is required
according to the wiring rules shall be provided with a plug in accordance with standard
sheet DK 2-1a or DK 2-5a.
If a single-phase equipment having a RATED CURRENT exceeding 13 A or if a poly-
phase equipment is provided with a supply cord with a plug, this plug shall be in
accordance with the standard sheets DK 6-1a in DS 60884-2-D1 or EN 60309-2.
Justification
the Heavy Current Regulations, 6c

- 13 - EN 60950-1:2006/A2:2013
Add the following new annex.
Annex ZD
(informative)
IEC and CENELEC code designations for flexible cords
Type of flexible cord Code designations
IEC CENELEC
PVC insulated cords
Flat twin tinsel cord 60227 IEC 41 H03VH-Y
Light polyvinyl chloride sheathed flexible cord 60227 IEC 52 H03VV-F
H03VVH2-F
Ordinary polyvinyl chloride sheathed flexible cord 60277 IEC 53 H05VV-F
H05VVH2-F
Rubber insulated cords
Braided cord 60245 IEC 51 H03RT-F
Ordinary tough rubber sheathed flexible cord 60245 IEC 53 H05RR-F
Ordinary polychloroprene sheathed flexible cord 60245 IEC 57 H05RN-F
Heavy polychloroprene sheathed flexible cord 60245 IEC 66 H07RN-F
Cords having high flexibility
Rubber insulated and sheathed cord 60245 IEC 86 H03RR-H
Rubber insulated, crosslinked PVC sheathed cord 60245 IEC 87 H03RV4-H
Crosslinked PVC insulated and sheathed cord 60245 IEC 88 H03V4V4-H

IEC 60950-1 ®
Edition 2.0 2013-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
AMENDMENT 2
AMENDEMENT 2
Information technology equipment – Safety –

Part 1: General requirements
Matériels de traitement de l'information – Sécurité –

Partie 1: Exigences générales
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX T
ICS 35.020; 35.260 ISBN 978-2-83220-741-3

– 2 – 60950-1 Amend.2 © IEC:2013
FOREWORD
This amendment has been prepared by IEC technical committee 108: Safety of electronic
equipment within the field of audio/video, information technology and communication
technology.
The text of this amendment is based on the following documents:
FDIS Report on voting
108/507/FDIS 108/510/RVD
Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability 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.
____________
0.1 General principles of safety
Replace, in the existing second paragraph, the words "technologies and materials" by
"technologies, components and materials".
Add, between the existing second and third paragraphs, the following new note:
NOTE The need for additional detailed requirements to cope with a new situation should be brought promptly to
the attention of the appropriate committee.
1.1.1 Equipment covered by this standard
Replace the existing third paragraph by the following new paragraph:
This part of IEC 60950 is also applicable to:
– components and subassemblies intended for incorporation in this equipment. Such
components and subassemblies need not comply with every requirement of the standard,
provided that the complete equipment, incorporating such components and
subassemblies, does comply;
– external power supply units intended to supply other equipment within the scope of this
part of IEC 60950;
– accessories intended to be used with equipment within the scope of this part of
IEC 60950.
Replace, in the existing NOTE 1, the words "components and subassemblies" by "components,
subassemblies and accessories".

60950-1 Amend.2 © IEC:2013 – 3 –
1.1.3 Exclusions
Replace in the existing first dash "and transformers;" by "and distribution transformers;"
1.2.1.1
RATED VOLTAGE
Replace the existing definition by the following new definition:
supply voltage from which the equipment is to be operated as declared by the manufacturer
1.5.1 General
Replace the existing text and notes of this subclause by the following new text:
Where safety is involved, components shall comply with the requirements of this standard or,
where specified in a requirements clause, with the safety aspects of the relevant IEC
component standards.
NOTE An IEC component standard is considered relevant only if the component in question clearly falls within its
scope.
Components and subassemblies that comply with IEC 62368-1 are acceptable as part of an
equipment covered by this standard without further evaluation other than to give consideration
to the appropriate use of the component or subassembly in the end-product.
1.5.2 Evaluation and testing of components
Replace the existing text and note of this subclause by the following new text:
Where use of an IEC component standard is permitted above, evaluation and testing of
components shall be conducted as follows:
– a component shall be checked for correct application and use in accordance with its
rating;
– a component that has been demonstrated to comply with a standard harmonized with the
relevant IEC component standard shall be subjected to the applicable tests of this
standard, as part of the equipment, with the exception of those tests that are part of the
relevant IEC component standard;
– a component that has not been demonstrated to comply with a relevant standard as above
shall be subjected to the applicable tests of this standard, as part of the equipment, and to
the applicable tests of the component standard, under the conditions occurring in the
equipment;
NOTE The applicable test for compliance with a component standard is, in general, conducted separately.
– where components are used in circuits not in accordance with their specified ratings, the
components shall be tested under the conditions occurring in the equipment. The number
of samples required for test is, in general, the same as required by an equivalent
standard.
Compliance is checked by inspection and by the relevant data or tests.
1.5.6 Capacitors bridging insulation
Replace the existing second dash of this subclause by the following new dash:
– Humidity: (93 ± 3) % relative humidity;

– 4 – 60950-1 Amend.2 © IEC:2013
Table 1C – Capacitor ratings according to IEC 60384-14
Replace, in the existing Table 1C modified by Amendment 1, the first six rows by the
following:
TYPE TEST TYPE TEST r.m.s.
RATED VOLTAGE of the
Capacitor subclass according to impulse voltage of voltage of the
capacitor
IEC 60384-14 the capacitor capacitor
V r.m.s.
kV peak kV r.m.s.
Y1 Up to and including 500 8 4
Over 150 up to and
Y2 5 1,5
including 300
Y4 Up to and including 150 2,5 0,9
a
X1 Up to and including 760 4 -
a
X2 Up to and including 760 2,5 -

Replace the existing Rule 2 of Table 1C modified by Amendment 1 by the following:
2 For a single capacitor bridging FUNCTIONAL INSULATION, BASIC INSULATION, SUPPLEMENTARY INSULATION or
REINFORCED INSULATION, the voltage rating of the single capacitor shall be at least equal to the RMS WORKING
VOLTAGE across the insulation being bridged, determined according to 2.10.2.2.
Replace the existing Rule 3 of Table 1C modified by Amendment 1 by the following:
3 For a single capacitor bridging FUNCTIONAL INSULATION, BASIC INSULATION or SUPPLEMENTARY INSULATION,
– the TYPE TEST impulse test voltage of the single capacitor shall be not less than the peak value of the test
voltage (not the r.m.s. voltage) of Table 5B for BASIC INSULATION, or the peak value of the test voltage of
Table 5C for BASIC INSULATION, as applicable;
– the TYPE TEST r.m.s. voltages of the single capacitor shall be not less than the required r.m.s. test voltage
of Table 5B for BASIC INSULATION, or the equivalent r.m.s. test voltage (not the peak voltage) of Table 5C
for BASIC INSULATION, as applicable.
Replace the existing Rule 4 of Table 1C modified by Amendment 1 by the following:
4 For a single capacitor bridging DOUBLE INSULATION or REINFORCED INSULATION,
– the TYPE TEST impulse voltage of the single capacitor shall be not less than the peak value of the test
voltage (not the r.m.s. voltage) of Table 5B for REINFORCED INSULATION, or the peak value of the test
voltage of Table 5C for REINFORCED INSULATION, as applicable;
– the TYPE TEST r.m.s. voltage of the single capacitors shall be not less than the required r.m.s. test voltage
of Table 5B for REINFORCED INSULATION, or the equivalent r.m.s. test voltage (not the peak voltage) of
Table 5C for REINFORCED INSULATION, as applicable;
Replace the existing Rule 7 of Table 1C modified by Amendment 1 by the following:
7 If two or more capacitors are used in series, all of the following apply:
– under single fault conditions, the voltage on each of the remaining individual capacitors shall not exceed
the voltage rating of the relevant individual capacitor;
– for BASIC INSULATION or SUPPLEMENTARY INSULATION, the sum of the TYPE TEST peak impulse test voltages
of all capacitors shall be not less than the peak value of the test voltage (not the r.m.s. voltage) of Table
5B, or the peak value of the test voltage of Table 5C, as applicable;
– for BASIC INSULATION or SUPPLEMENTARY INSULATION, the sum of the TYPE TEST r.m.s. test voltages of all
capacitors shall be not less than the required r.m.s. test voltage of Table 5B, or the equivalent r.m.s. test
voltage (not the peak voltage) of Table 5C, as applicable;
– for REINFORCED INSULATION, the sum of the TYPE TEST peak impulse test voltages of all capacitors shall be
not less than the peak value of the test voltage (not the r.m.s. voltage) of Table 5B, or the peak value of
the test voltage of Table 5C, as applicable;
– for REINFORCED INSULATION, the sum of the TYPE TEST r.m.s. test voltages of all capacitors shall be not
less than the required r.m.s. test voltage of Table 5B, or the equivalent r.m.s. test voltage (not the peak
voltage) of Table 5C, as applicable;
– they shall comply with the other rules above.

60950-1 Amend.2 © IEC:2013 – 5 –
Table 1D – Informative examples of application of capacitors
Replace, in the existing Table 1D modified by Amendment 1, the value “1” by “-” in the
following rows as shown:
150 III 2,5 F X2 - 1
250 III 4,0 F X1 - 1
1.5.7.2 Resistors bridging double insulation or reinforced insulation between the a.c.
mains supply and other circuits
Replace, in the existing second dash, the value “93 % ± 3 %” by “(93 ± 3) %”.
1.5.9.2 Protection of VDRs
Replace the last existing sentence of this subclause by the following new sentence:
Compliance is checked by inspection and, if necessary to determine that the circuit is a
LIMITED CURRENT CIRCUIT, by measurement and test.
1.5.9.4 Bridging of basic insulation by a VDR
Replace the first existing paragraph of this subclause by the following new paragraph:
It is permitted to bridge BASIC INSULATION by a VDR complying with the requirements of
Annex Q, with or without a GDT in series, provided that one side of the circuit is earthed in
accordance with 2.6.1 a).
Replace the last existing paragraph of this subclause, added by Amendment 1, and the
compliance statement by the following new text:
For all other equipment, it is permitted to bridge BASIC INSULATION by a VDR in series with a
GDT provided that:
– the VDR complies with the requirements of Annex Q; and
– the GDT complies with:
• the electric strength test for BASIC INSULATION; and
• the external CLEARANCE and CREEPAGE DISTANCE requirements for BASIC INSULATION.
Compliance is checked by inspection and, if necessary, by measurement and test.
1.7 Markings and instructions
Delete the existing reference to “2.1.1.8 Energy hazards”.
1.7.1.1 Power rating markings
Replace the existing second paragraph, added by Amendment 1, by the following two new
paragraphs:
If the equipment is not provided with a means for direct connection to a MAINS SUPPLY, it need
not be marked with any electrical rating, such as its RATED VOLTAGE, RATED CURRENT or RATED
FREQUENCY.
If the equipment, or a system, has multiple MAINS SUPPLY connections, each individual MAINS
SUPPLY electrical rating must be marked, unless they are the same, but the overall equipment

– 6 – 60950-1 Amend.2 © IEC:2013
or system electrical rating need not be marked. If the multiple MAINS SUPPLY are identical, it is
permitted to mark them, for example, as “MAINS SUPPLY electrical rating x N” where N is the
number of identical MAINS SUPPLY connections.
1.7.1.2 Identification markings
Add, after the existing subclause added by Amendment 1, the following new subclause:
1.7.1.3 Use of graphical symbols
Graphical symbols placed on the equipment, whether required by this standard or not, shall
be in accordance with IEC 60417 or ISO 3864-2 or ISO 7000, if available. In the absence of
suitable symbols, the manufacturer may design specific graphical symbols.
Symbols placed on the equipment shall be explained in the user manual.
2.2.3 Voltages under fault conditions
Replace, in the existing first paragraph of this subclause, the existing words "Figure 2E" by
"Figure 2E.1 and Figure 2E.2" (two instances).
Replace in the existing first paragraph of this subclause the value “120 V d.c” by “120 V ”.
peak
Replace the existing third paragraph starting with “Only one pulse ." by the following new
text:
A limit of 120 V applies if the pulse goes above V only once during time t , for example
peak 1 1
see Figure 2E.1.
A limit of 71 V applies if the pulse goes above V more than once during time t , for
peak 1 1
example see Figure 2E.2.
Figure 2E – Voltages in SELV circuits under single fault conditions
Replace the existing Figure 2E by the following new Figures 2E.1 and 2E.2:

t t
1 2
V 120 V
2 peak
V
0 V
IEC  710/13
Figure 2E.1 – Voltages in SELV circuits under single
fault conditions for a single pulse above V1

60950-1 Amend.2 © IEC:2013 – 7 –

t t
1 2
V 71 V
2 peak
V
0 V
IEC  711/13
Figure 2E.2 – Voltages in SELV circuits under single
fault conditions for multiple pulses above V1
Table 2B – Limits for power sources without an overcurrent protective device
Replace the existing footnote d of this table by the following new footnote:
d
Measurement of I and S are made 5 s after application of the load if protection is by an electronic circuit and
sc
60 s for a positive temperature coefficient device or in other cases.
2.6.2 Functional earthing
Delete the existing last dashed item of this subclause, including the bulleted items of this
dash.
Add, before the existing last sentence of this subclause, the following new text:
For equipment having a power supply cord where a conductor with green-and-yellow
insulation is used only to provide a FUNCTIONAL EARTHING connection:
– the equipment shall not be marked with the symbol , IEC 60417-5172 (2003-02); and
– the equipment may be marked with:
• the symbol , IEC 60417-5018 (2011-07); or
• the symbol , IEC 60417-6092 (2011-10).
These symbols shall not be used for CLASS I EQUIPMENT.
There are no requirements other than those in 3.1.9 regarding the termination of this
FUNCTIONAL EARTHING conductor at the equipment end.

Table 2D – Minimum size of protective bonding conductors
Replace the value “16” in the first column, first row by “20”.
2.7.1 Basic requirements
Replace in the existing note the word “CENELEC” by “CENELEC and in China”.

– 8 – 60950-1 Amend.2 © IEC:2013
2.9.2 Humidity conditioning
Replace in the existing first paragraph, modified in Amendment 1, the value “2 K” by “± 2 °C”.
Replace the existing second paragraph by the following two new paragraphs:
For equipment designated for use in tropical conditions, the time duration shall be 120 h at a
temperature of (40 ± 2) °C and a relative humidity of (93 ± 3) %.
With the concurrence of the manufacturer, it is permitted to increase the time durations.
Table 2H – Examples of application of insulation
Replace the existing row for BASIC, TNV-2 CIRCUIT of this table by the following new row:
d e
TNV-2 CIRCUIT – unearthed TNV-1 CIRCUIT B12
d f
– earthed TNV-1 CIRCUIT B13
f
– TNV-3 CIRCUIT B14
Replace the existing row for SUPPLEMENTARY, TNV CIRCUIT of this table by the following new
row:
TNV CIRCUIT – basic-insulated conductive part S2
– ELV CIRCUIT S2
Figure 2H – Examples of application of insulation
Replace the existing figure, including the note, by the following new note and figure:

60950-1 Amend.2 © IEC:2013 – 9 –

Similar circuit or
conductive part
PRIMARY CIRCUIT
F6
R B
B1
Unearthed
HAZARDOUS VOLTAGE
SECONDARY CIRCUIT B4
S/R B
B1
Earthed
HAZARDOUS VOLTAGE
F5
B
SECONDARY CIRCUIT
R
B3 B6 B6
ELV CIRCUIT or
basic-insulated
F4
S
conductive part
F
c)
b)
R1 R3 S/R1 S1
Unearthed SELV CIRCUIT
or double-insulated
conductive part
F2
B6 B F
B2 B5 B5 F3 F1
Earthed SELV CIRCUIT
F11
B F
c)
f)
f)
R2 R4 S/R2 S2
B7 F12
Unearthed TNV-1 CIRCUIT
F7
B
c)
f) f)
R2 R4 S/R2 S2
F10 F13
Earthed TNV-1 CIRCUIT
F7
B
c)
d) f)  d) d) d) e)
R2 R4 S/R2 S2
B8 B10 B12
B13
TNV-2 CIRCUIT
F8
B
d) f)  d) e) d) e)
c)
R2 R4 S/R2 S2 B13 B14 B9 B11 B12
TNV-3 CIRCUIT
F9
F: FUNCTIONAL INSULATION B: BASIC INSULATION
S: SUPPLEMENTARY INSULATION S/R: see Footnote c in Table 2H
R: REINFORCED INSULATION
IEC  712/13
NOTE The references b), c), d), e) and f) refer to the corresponding footnotes in Table 2H.
2.10.3.1 General
Add, after the existing Note 1, the following new note and renumber the subsequent notes
accordingly:
NOTE 2 China has special requirements in choosing multiplication factors at altitudes above 2 000 m.
Table 2L – Additional clearances in primary circuits
Replace the existing table, modified by Amendment 1, by the following new table:

– 10 – 60950-1 Amend.2 © IEC:2013
CLEARANCES in mm
MAINS TRANSIENT VOLTAGE
c c
1 500 V 2 500 V
a a
Pollution Pollution FUNCTIONAL REINFORCED Pollution degrees FUNCTIONAL REINFORCED
b
Degrees Degree 3 BASIC or INSULATION 1, 2 and 3 BASIC or INSULATION
b
1 and 2  SUPPLEMENTARY SUPPLEMENTARY

INSULATION INSULATION
PEAK WORKING PEAK WORKING
VOLTAGE VOLTAGE
up to and up to and
including including
V V
210 (210) 210 (210) 0,0 0,0 420 (420) 0,0 0,0
298 (288) 294 (293) 0,1 0,2 493  (497) 0,1 0,2
386 (366) 379 (376) 0,2 0,4 567  (575) 0,2 0,4
474 (444) 463 (459) 0,3 0,6 640  (652) 0,3 0,6
562 (522) 547 (541) 0,4 0,8 713  (729)
0,4 0,8
650 (600) 632 (624) 0,5 1,0 787  (807) 0,5 1,0
738 (678) 715 (707) 0,6 1,2 860  (884) 0,6 1,2
826 (756) 800 (790) 0,7 1,4 933  (961) 0,7 1,4
914 (839) 885 (873) 0,8 1,6 1 006 (1 039) 0,8 1,6
1 002 (912)  970 (956) 0,9
1,8 1 080 (1 116) 0,9 1,8
1 090 (990)
1 055 (1 039) 1,0 2,0 1 153 (1 193) 1,0 2,0
1 178 (1 068) 1 140 (1 122) 1,1 2,2 1 226 (1 271) 1,1 2,2
1 266 (1 146) 1 225 (1 205) 1,2 2,4 1 300 (1 348) 1,2 2,4
1 354 (1 224) 1 310 (1 288) 1,3 2,6 1 374 (1 425) 1,3 2,6
The additional CLEARANCES in the table apply if required by 2.10.3.3 b).
The values in parentheses shall be used:
– if the values in parentheses in Table 2K are used; and
– for FUNCTIONAL INSULATION if required by 5.3.4 a).
For voltage values above the PEAK WORKING VOLTAGE values given in the table, linear extrapolation is permitted.
For voltage values within the PEAK WORKING voltage values given in the table, linear interpolation is permitted
between the nearest two points, the calculated minimum additional CLEARANCE being rounded up to the next higher
0,1 mm increment.
a
There is no minimum CLEARANCE for FUNCTIONAL INSULATION unless it is required by 5.3.4 a). See 2.10.1.3.
b
It is not required to pass the tests of 2.10.10 for Pollution Degree 1.
c
The relationship between MAINS TRANSIENT VOLTAGE and AC MAINS SUPPLY voltage is given in Table 2J.

2.10.10 Test for Pollution Degree 1 environment and for insulating compound
Replace the existing last paragraph of this subclause by the following new text:
For other than printed boards, compliance is checked by inspection of the cross-sectional
area, and there shall be no visible voids, gaps or cracks in the insulating material.
In the case of insulation between conductors on the same inner surface of printed boards and
the insulation between conductors on different surfaces of multilayer printed boards,
compliance is checked by external visual inspection. There shall be no delamination which
affects the pollution degree.
60950-1 Amend.2 © IEC:2013 – 11 –
2.10.11 Tests for semiconductor devices and for cemented joints
Replace the existing last paragraph of this subclause by the following new text:
Compliance is checked by inspection and measurement.
Except for cemented joints on the same inner surface of a printed board, compliance is
checked by inspection of the cross-sectional area, and there shall be no visible voids, gaps or
cracks in the insulating material.
In the case of insulation between conductors on the same inner surface of printed boards and
the insulation between conductors on different surfaces of multilayer boards, compliance is
checked by measurement and external visual inspection. There shall be no delamination.
3.2.5.1 AC power supply cords
Replace the entire existing text of this subclause, except for Table 3B, by the following new
text:
A MAINS SUPPLY cord shall be of the sheathed type and comply with the following as
appropriate:
– if rubber sheathed, be of synthetic rubber and not lighter than ordinary tough rubber-
sheathed flexible cord according to IEC 60245-1 (designation 60245 IEC 53);
– if PVC sheathed:
• for equipment provided with a NON-DETACHABLE POWER SUPPLY CORD and having a mass
not exceeding 3 kg, be not lighter than light PVC sheathed flexible cord according to
IEC 60227-1:2007 (designation 60227 IEC 52);
• for equipment provided with a NON-DETACHABLE POWER SUPPLY CORD and having a mass
exceeding 3 kg, be not lighter than ordinary PVC sheathed flexible cord according to
IEC 60227-1:2007 (designation 60227 IEC 53);
NOTE 1 There is no limit on the mass of the equipment if the equipment is intended for use with a
DETACHABLE POWER SUPPLY CORD.
• for equipment provided with a DETACHABLE POWER SUPPLY CORD, be not lighter than
light PVC sheathed flexible cord according to IEC 60227-1:2007 (designation 60227
IEC 52);
• for screened cords of MOVEABLE EQUIPMENT, the flexing test of 3.1 of
IEC 60227-2:1997;
NOTE 2 Although screened cords are not covered in the scope of IEC 60227-2, the relevant flexing tests
of IEC 60227-2 are used.
– other types of cords may be used if they have similar or better electro-mechanical and fire
safety properties as above.
NOTE 3 Where national or regional standards exist, they can be used to show compliance with the above
paragraph.
For equipment required to have protective earthing, a PROTECTIVE EARTHING CONDUCTOR shall
be included in the MAINS SUPPLY cord.
A MAINS SUPPLY cord shall have conductors with a cross-sectional area not less than those
specified in Table 3B.
Compliance is checked by inspection. For screened cords, damage to the screen is
acceptable provided that:
– during the flexing test the screen does not make contact with any conductor, and

– 12 – 60950-1 Amend.2 © IEC:2013
– after the flexing test, the sample withstands the appropriate electric strength test between
the screen and all other conductors.
Table 3E – Sizes of terminals for mains supply conductors and protective earthing
conductors
Replace the existing table by the following new table:
Minimum nominal thread Area of cross section
diameter mm
RATED CURRENT
Conductor size
mm
A 2
mm
b b
up to and including
Pillar type or Screw type
...