BS EN 61204-7-2006 Low-voltage power supplies d c output - Safety requirements《直流输出的低压电源 安全性要求》.pdf

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1、BRITISH STANDARDBS EN 61204-7:2006Low-voltage power supplies, d.c. output Part 7: Safety requirementsICS 29.200g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55

2、g3g47g36g58Incorporating CENELECamendment A11National forewordThis British Standard is the UK implementation of EN 61204-7:2006 incorporating A11:2009. It is derived from IEC 61204-7:2006. It supersedes BS EN 61204-7:2006 which is withdrawn.The UK participation in its preparation was entrusted to Te

3、chnical Committee PEL/22, Power electronics.A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a

4、 British Standard cannot confer immunity from legal obligations. BS EN 61204-7:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 29 December 2006 BSI 2009Amendments/corrigenda issued since publicationComments Date 31 October 2009 Implementa

5、tion of CENELEC amendment A11:2009. Subclause 1.7.1.Z1 addedISBN 978 0 580 65045 1EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM June 2009CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normun

6、g Central 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 612

7、04-7:2006) 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 ar

8、e 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

9、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

10、 same 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, Po

11、land, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. EN 61204-7:2006 +A11Foreword The text of document 22E/101/FDIS, future edition 1 of IEC 61204-7, prepared by SC 22E, Stabilized power supplies, of IEC TC 22, Power electronic systems and equipment, was su

12、bmitted 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 national level by publication of an identical national standard or by endorsement (dop) 2007-07-01 latest date by whi

13、ch 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 the CEN/CENELEC Internal Regulations because of the varied requirements which can apply to power supplies. It assum

14、es 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 meet the requirements of other standards dependent on the application. To satisfy this need it was decided that all

15、 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 can then be optionally applied by applying any or all of the appropriate annexes. This was done to avoid confusion.

16、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: Reserved for future use. Part 2: Performance characteristics11)Part 3: Electromagnetic compatibility (EMC) Part 4:

17、 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 read in conjunction with EN 60950:2000 and/or EN 60950-1:2001. It makes reference to the standard EN 60950:2000 and/

18、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 that both documents apply. However, it is only necessary to apply one or other of these standards. Wherever the word

19、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 references, otherwise these annexes apply as detailed in the clauses of these standards referred to in this standar

20、d. 1)Under consideration 2 EN 61204-7:2006BS EN 61204-7:2006In 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. Normat

21、ive conditions within tables: in smaller roman type. Terms that 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

22、EN 61204-7:2006Foreword to amendment A11This amendment was prepared by the Technical Committee CENELEC TC 22X, Power electronics. amendment A11 to EN 61204-7:2006 on 2009-06-01.The following dates were fixed: latest date by which the amendment has to be implementedat national level by publication of

23、 an identicalnational standard or by endorsement (dop) 2010-06-01 latest date by which the national standards conflictingwith the amendment have to be withdrawn (dow) 2012-06-01_The text of the draft was submitted to the Unique Acceptance Procedure and was approved byCENELEC as BS EN 61204-7:2006CON

24、TENTS 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) Requirements for power supply units for use in medical Annex PS-D (normative) Requirements for pow

25、er supply units used in or with audio, Annex PS-F (informative) Guidance on marking and installation instructions for proper 4 EN 61204-7:2006Principles of Safety 7 General 7 Scope7 Definitions .8 General requirements10 General conditions for tests.10 Components11 Marking and instructions12 Protecti

26、on 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 bonding 14 Overcurrent and earth fault protection in primary circuits.15 Safety interlocks15 Electrical insulation

27、 .15 2.10 Clearances, creepage distances and distances through insulation.15 Wiring, connections and supply 15 Physical requirements 15 Electrical requirements and simulated abnormal conditions 15 Touch current and protective conductor current.15 Electric strength 15 Abnormal operating and fault con

28、ditions15 Connection to telecommunication networks 16 Connection to a cable distribution system.16 equipment for measurement, control and laboratory use .18 electrical equipment68 Annex PS-C (informative) Reserved for future use.69 Annex PS-E (normative) DC power and distribution equipment 144 selec

29、tion of POWER SUPPLIES for use in INFORMATION TECHNOLOGY EQUIPMENT 163 Annex PS-P (normative) Normative references 165 Annex PS-Q (informative) Bibliography166 Appendix PS-D.A (normative) Additional requirements for STAND-ALONE POWER SUPPLIES with protection against splashing water .133 video and si

30、milar electronic apparatus 70 SUPPLIES to be connected to thetelecommunication networks .134 Appendix PS-D.B (normative) POWER BS EN 61204-7:2006Power interface .11 Figure PS-A1 Maximum duration of short-term temporary accessible voltages in Figure PS-D13 Distances from a potential ignition source a

31、nd an example for the Table PS-A.E.1 Reduction of pollution degree of internal environment 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 CRE

32、EPAGE DISTANCES (enclosed, enveloped Table PS-D13 Flammability category related to distance from potential ignition 5 EN 61204-7:2006single fault condition (see PS-A.6.3.2 a) 45 Figure PS-A6 Baffle .61 Figure PS-A.A4 Current measuring circuit for wet contact 65 Figure PS-D4 Test hook.130 Figure PS-D

33、6 Dielectric strength test instrument130 Figure PS-D7 Test voltages .131 Figure PS-D10 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 1

34、3 Table 1A.100 Separation of ringing circuits from other circuits .14 Table PS-A1 Symbols 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 CREEP

35、AGE DISTANCES .52 Table PS-A9 Test voltages for basic insulation 55 Table PS-A11 Physical tests on power supply cords 56 Table PS-A12 Acceptable perforation of the bottom of an ENCLOSURE 61 Table PS-A15 Surface temperature limits in NORMAL CONDITION62 Table PS-A16 Insulation material of windings 63

36、use of additional protection.66 and IEC 60950-1:2001).70 Table PS-D3 Permissible temperature 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 termi

37、nals.122 Table PS-D17 Pull force on pins 122 Table PS-D18 Nominal cross-sectional areas of external flexible cords123 Annex ZA (normative) Normative references to international publications with their corresponding European publications 167 Annex ZB (normative) Special national conditions 168 Table

38、PS-A 100 Comparison of IEC 61010-1:2001 and IEC 61204-718 BS EN 61204-7:2006 6 EN 61204-7:2006Table 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 Temperature limits 155 Table PS

39、-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 CIRCUITS 135 Table PS-D20 Torque to be applied to screws .125 BS EN 61204-7:2006LOW-VOLTAGE POWER SUPPLIES, DC OUTPUT Part 7: Safe

40、ty 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 61204 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

41、. 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 standard. This product standard covers both STAND-ALONE and COMPONENT POWER SUPPLY units as defined in this document. POWER SUPPLY units, which comp

42、ly 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 60950:1999 and/or IEC 60950-1:2001. POWER SUPPLY units will also comply with the appropriate standard or application requirements given below if they also me

43、et the additional requirements of the appropriate annex. PS-A Measurement, control and laboratory equipment normally covered by IEC 61010-1: 2001. PS-B 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

44、 Reserved for future use. PS-D Audio, Video and similar electronic apparatus normally covered by IEC 60065:2001. PS-E DC Power and distribution equipment. This standard also covers DC-DC converters. Where no standards exist, use of this standard for other applications is not precluded. 1.1.2 Additio

45、nal requirements Requirements additional to those specified in this standard may be necessary for: POWER SUPPLIES intended for operation in special environments (for example, extremes of temperature; excessive dust, moisture or vibration; flammable gases; and corrosive or explosive atmospheres); 7 E

46、N 61204-7:2006BS EN 61204-7:2006 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

47、the fact that authorities in some 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

48、 sets; uninterruptible POWER SUPPLIES (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 oth

49、er consumer products, except those covered by IEC 60065:2001 and IEC 60950:1999 and/or IEC 60950-1:2001; transformers covered by IEC 61558-1:2005; step-down converters covered by IEC 60146-1-1:1991; POWER SUPPLIES and converters for use with or in products covered by IEC 61347-2-2:2000. 1.2 Definitions NOTE The definitions in the RD document apply to this standard. The definitions given below also apply to this sta