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1、BRITISH STANDARD BS EN 61204-7:2006 Low-voltage power supplies, d.c. output Part 7: Safety requirements The European Standard EN 61204-7:2006 has the status of a British Standard ICS 29.200 ? Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 200
2、6, Uncontrolled Copy, (c) BSI BS EN 61204-7:2006 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2006 ISBN 0 580 49893 X National foreword This British Standard was published by BSI. It is the UK implementation of EN 6120
3、4-7:2006. It is identical with IEC 61204-7:2006. The UK participation in its preparation was entrusted to Technical Committee PEL/22, Power electronics. A list of organizations represented on PEL/22 can be obtained on request to its secretary. This publication does not purport to include all the nec
4、essary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard cannot confer immunity from legal obligations. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, S
5、at Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 61204-7 NORME EUROPENNE EUROPISCHE NORM November 2006 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Ce
6、ntral Secretariat: rue de Stassart 35, B - 1050 Brussels 2006 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61204-7:2006 E ICS 29.200 English version Low voltage power supplies, d.c. output Part 7: Safety requirements (IEC 61204-7
7、:2006) Alimentations basse tension, sortie continue Partie 7: Exigences de scurit (CEI 61204-7:2006) Stromversorgungsgerte fr Niederspannung mit Gleichstromausgang Teil 7: Sicherheitsanforderungen (IEC 61204-7:2006) This European Standard was approved by CENELEC on 2006-10-01. CENELEC members are bo
8、und 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
9、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 sam
10、e status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland
11、, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of document 22E/101/FDIS, future edition 1 of IEC 61
12、204-7, prepared by SC 22E, Stabilized power supplies, of IEC TC 22, Power electronic systems and equipment, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61204-7 on 2006-10-01. The following dates were fixed: latest date by which the EN has to be implemented at nat
13、ional level by publication of an identical national standard or by endorsement (dop) 2007-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2009-10-01 This standard does not follow the rules for structuring European Standards as given in Part 3 of t
14、he CEN/CENELEC Internal Regulations because of the varied requirements which can apply to power supplies. It assumes that all power supplies are required to meet either EN 60950:2000 (IEC 60950:1999, mod.) and/or EN 60950-1:2001 (IEC 60950-1:2001, mod.). In addition power supplies may also have to m
15、eet the requirements of other standards dependent on the application. To satisfy this need it was decided that all power supplies shall meet EN 60950:2000 and/or EN 60950-1:2001 as described in the main body of this standard. The differences between these requirements and those of other standards ca
16、n then be optionally applied by applying any or all of the appropriate annexes. This was done to avoid confusion. The annexes of this standard are clearly described in 1.1.1. EN 61204 (IEC 61024) consists of the following parts, under the general title Low voltage power supplies, DC output: Part 1:
17、Reserved for future use. Part 2: Performance characteristics11) Part 3: Electromagnetic compatibility (EMC) Part 4: Tests other than EMC1) Part 5: Reserved for future use. Part 6: Requirements for low-voltage power supplies of assessed performance Part 7: Safety requirements This standard should be
18、read in conjunction with EN 60950:2000 and/or EN 60950-1:2001. It makes reference to the standard EN 60950:2000 and/or EN 60950-1:2001 in the form of “clause number/RD”. In this context, “RD” means “Reference Document” i.e. EN 60950:2000 and/or EN 60950-1:2001. Unless otherwise specified, RD means t
19、hat both documents apply. However, it is only necessary to apply one or other of these standards. Wherever the word equipment occurs in this reference document, this means POWER SUPPLY. The annexes of EN 60950:2000 and/or EN 60950-1:2001 are also referred to by means of “RD“ where these are specific
20、 references, otherwise these annexes apply as detailed in the clauses of these standards referred to in this standard. 1) Under consideration 2 EN 61204-7:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI In
21、 this standard, the following print types are used: Requirements proper and normative annexes: in roman type. Compliance statements and test specifications: in italic type. Notes and other informative matter: in smaller roman type. Normative conditions within tables: in smaller roman type. Terms tha
22、t are defined in 1.2: SMALL CAPITALS. Annexes ZA and ZB have been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61204-7:2006 was approved by CENELEC as a European Standard without any modification. _ 3 EN 61204-7:2006 Licensed Copy: London South Bank University, L
23、ondon South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CONTENTS 0 1 1.1 1.2 1.3 1.4 1.5 1.6 1.7 2 2.1 2.2 2.3 2.4 2.5 2.6 2.7 2.8 2.9 3 4 5 5.1 5.2 5.3 6 7 Annex PS-A (normative) Requirements for power supply units for use in electrical Annex PS-B (normative) Req
24、uirements for power supply units for use in medical Annex PS-D (normative) Requirements for power supply units used in or with audio, Annex PS-F (informative) Guidance on marking and installation instructions for proper 4 EN 61204-7:2006 Principles of Safety 7 General 7 Scope7 Definitions.8 General
25、requirements10 General conditions for tests.10 Components11 Power interface .12 Marking and instructions12 Protection from hazards .13 Protection from electric shock and energy hazards13 SELV circuits.14 TNV circuits.14 Limited current circuits 14 Limited power sources.14 Provisions for earthing and
26、 bonding 14 Overcurrent and earth fault protection in primary circuits.15 Safety interlocks15 Electrical insulation .15 2.10 Clearances, creepage distances and distances through insulation.15 Wiring, connections and supply 15 Physical requirements 15 Electrical requirements and simulated abnormal co
27、nditions 15 Touch current and protective conductor current.15 Electric strength 15 Abnormal operating and fault conditions15 Connection to telecommunication networks 16 Connection to a cable distribution system.16 equipment for measurement, control and laboratory use .18 electrical equipment68 Annex
28、 PS-C (informative) Reserved for future use.69 Annex PS-E (normative) DC power and distribution equipment 144 selection of POWER SUPPLIES for use in INFORMATION TECHNOLOGY EQUIPMENT163 Annex PS-P (normative) Normative references 165 Annex PS-Q (informative) Bibliography166 Appendix PS-D.A (normative
29、) Additional requirements for STAND-ALONE POWER SUPPLIES with protection against splashing water .133 video and similar electronic apparatus 70 SUPPLIES to be connected to the telecommunication networks .134 Appendix PS-D.B (normative) POWER Licensed Copy: London South Bank University, London South
30、Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Figure PS-A1 Maximum duration of short-term temporary accessible voltages in Figure PS-D13 Distances from a potential ignition source and an example for the Table PS-A.E.1 Reduction of pollution degree of internal enviro
31、nment through the Table PS-D100 Comparison of IEC 60065:2001) with IEC 61204-7 (IEC 60950:1999 Table PS-D5 Test voltages for dielectric strength test and values for insulation Table PS-D12 Minimum CLEARANCES and CREEPAGE DISTANCES (enclosed, enveloped Table PS-D13 Flammability category related to di
32、stance from potential ignition 5 EN 61204-7:2006 single fault condition (see PS-A.6.3.2 a) 45 Figure PS-A6 Baffle .61 Figure PS-A.A4 Current measuring circuit for wet contact65 Figure PS-D4 Test hook.130 Figure PS-D6 Dielectric strength test instrument130 Figure PS-D7 Test voltages .131 Figure PS-D1
33、0 Minimum clearances and creepage distances on printed boards 132 design of barriers132 Figure PS-E.1.100A Resistance and short circuit calculations148 Table 1A.101 Marking and installation instruction information 13 Table 1A.100 Separation of ringing circuits from other circuits .14 Table PS-A1 Sym
34、bols 38 Table PS-A2 Tightening torque for screw assemblies.47 Table PS-A5 CLEARANCES for circuits derived from mains circuits.50 Table PS-A6 CLEARANCE values for the calculation of PS-A.6.7.3.2 51 Table PS-A7 CREEPAGE DISTANCES.52 Table PS-A9 Test voltages for basic insulation 55 Table PS-A11 Physic
35、al tests on power supply cords 56 Table PS-A12 Acceptable perforation of the bottom of an ENCLOSURE61 Table PS-A15 Surface temperature limits in NORMAL CONDITION62 Table PS-A16 Insulation material of windings 63 use of additional protection.66 and IEC 60950-1:2001).70 Table PS-D3 Permissible tempera
36、ture rise of parts of the POWER SUPPLY.97 resistance.104 or hermetically sealed constructions) 109 sources.110 Table PS-D14 Peak surge current117 Table PS-D15 Nominal cross-sectional area to be accepted by terminals.122 Table PS-D17 Pull force on pins 122 Table PS-D18 Nominal cross-sectional areas o
37、f external flexible cords123 Annex ZA (normative) Normative references to international publications with their corresponding European publications 167 Annex ZB (normative) Specialnational conditions 168 Table PS-A 100 Comparison of IEC 61010-1:2001 and IEC 61204-718 Licensed Copy: London South Bank
38、 University, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 6 EN 61204-7:2006 Table PS-D.N.1 Test voltage142 Table PS-E.2.100 AC and DC field wiring spacings153 Table PS-E.2.101 Minimum acceptable spacings for uninsulated bus bars 154 Table PS-E.4B.101 T
39、emperature limits 155 Table PS-E.5.101 Switch test sequences.157 Table PS-D21 Distances from potential ignition sources and consequential flammability categories .128 Table PS-D.B.1 Separation of TNV CIRCUITS135 Table PS-D20 Torque to be applied to screws .125 Licensed Copy: London South Bank Univer
40、sity, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BSI LOW-VOLTAGE POWER SUPPLIES, DC OUTPUT Part 7: Safety requirements 0 Principles of Safety The principles of 0/RD apply. 1 General 1.1 Scope 1.1.1 Equipment covered by this standard This part of IEC 6120
41、4 specifies the safety requirements for POWER SUPPLY units providing DC output(s) with or without auxiliary a.c. output(s) operating from a.c. or d.c. source voltages up to 600 V a.c. or 1 000 V d.c. (See exceptions in 1.1.3). NOTE Ringing generators used in telecoms applications are covered by this
42、 standard. This product standard covers both STAND-ALONE and COMPONENT POWER SUPPLY units as defined in this document. POWER SUPPLY units, which comply with the main body of this standard, satisfy the requirements of POWER SUPPLY units for use in or with IT equipment normally covered by IEC 60950:19
43、99 and/or IEC 60950-1:2001. POWER SUPPLY units will also comply with the appropriate standard or application requirements given below if they also meet the additional requirements of the appropriate annex. PS-A Measurement, control and laboratory equipment normally covered by IEC 61010-1: 2001. PS-B
44、 Medical equipment (under consideration) normally covered by IEC 60601-1:2005. NOTE This annex will be based on IEC 60601-1:2005 (Third Edition) PS-C Reserved for future use. PS-D Audio, Video and similar electronic apparatus normally covered by IEC 60065:2001. PS-E DC Power and distribution equipme
45、nt. This standard also covers DC-DC converters. Where no standards exist, use of this standard for other applications is not precluded. 1.1.2 Additional requirements Requirements additional to those specified in this standard may be necessary for: POWER SUPPLIES intended for operation in special env
46、ironments (for example, extremes of temperature; excessive dust, moisture or vibration; flammable gases; and corrosive or explosive atmospheres); 7 EN 61204-7:2006 Licensed Copy: London South Bank University, London South Bank University, Sat Dec 30 06:24:07 GMT+00:00 2006, Uncontrolled Copy, (c) BS
47、I POWER SUPPLIES intended to be used in vehicles, on board ships or aircraft, or in tropical countries; POWER SUPPLIES intended for use where ingress of water is possible; for guidance on such requirements and on relevant testing, see annex T/RD. Attention is drawn to the fact that authorities in so
48、me countries impose additional requirements for health, environmental and similar reasons. POWER SUPPLIES for use in or with power installations may have to meet additional requirements of IEC 62103:2003. 1.1.3 Exclusions This standard does not apply to motor-generator sets; uninterruptible POWER SU
49、PPLIES (UPS) to IEC 62040-1-1:2004; POWER SUPPLIES covered by IEC 61558-1:2005 (i.e. POWER SUPPLY units incorporating safety isolating transformers providing SELV or PELV output(s) in accordance with IEC 60364-4-41:2001 and POWER SUPPLIES for use with household and other consumer products, except those covered by IEC 60065:2001 and IEC 60950:1999