• BS EN IEC 61204-7:2018 (published 2018-04)

    Current The latest, up-to-date edition.

    Low-voltage switch mode power supplies Safety requirements

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  17-04-2018

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    0 Principles of safety
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Protection against hazards
    5 Test requirements
    6 Information and marking requirements
    7 Components
    Annex A (normative) - Additional information for
            protection against electric shock
    Annex B (informative) - Considerations for the
            reduction of the pollution degree
    Annex C (informative) - Symbols referred to in IEC 62477-1
    Annex D (normative) - Evaluation of clearance and
            creepage distances
    Annex E (informative) - Altitude correction for clearances
    Annex F (normative) - Clearance and creepage distance
            determination for frequencies greater than 30 kHz
    Annex G (informative) - Cross-sections of round conductors
    Annex H (informative) - Guidelines for RCD compatibility
    Annex I (informative) - Examples of overvoltage category reduction
    Annex J (informative) - Burn thresholds for touchable surfaces
    Annex K (informative) - Table of electrochemical potentials
    Annex L (informative) - Measuring instrument for touch
            current measurements
    Annex M (informative) - Test probes for determining access
    Annex AA (normative) - Addition Insulated winding wires
             for use without interleaved insulation
    Annex AB (informative) - Minimum and maximum
             cross-section of copper conductors suitable for
             connection to terminals for external conductors
    Annex AC (normative) - DC power and distribution equipment
    Annex AD (informative) - Addition Examples of protective
             measures according to IEC 61204-7 clause 4.4.1 - 4.4.5
             for protection against electrical shock
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their corresponding
             European publications
    Annex ZZ (informative) - Relationship between this
             European Standard and the safety objectives of
             Directive 2014/35/EU [2014 OJ L96] aimed to
             be covered

    Abstract - (Show below) - (Hide below)

    Defines the safety requirements for switch mode power supply (SMPS) units supplied by source voltages up to 1000 V AC or 1500 V DC providing AC and/or DC output(s), except inverter output(s) establishing AC mains.

    Scope - (Show below) - (Hide below)

    IEC 61204-7:2016 is available as IEC 61204-7:2016 EXV which includes the provisions of the general rules dealt with in IEC 62477-1:2012.

    IEC 61204-7:2016 specifies the safety requirements for switch mode power supply (SMPS) units supplied by source voltages up to 1 000 V AC or 1 500 V DC providing AC and/or DC output(s), except inverter output(s) establishing AC mains. This product standard covers both stand-alone and component SMPS as defined in this document. DC power and distribution equipment which provides, distributes, monitors, and controls isolated secondary circuit power to other equipment typically used in information and communication technology equipment installations. This edition includes the following significant technical changes with respect to the previous edition:
    a) use of IEC 62477-1 as reference document, instead of IEC 60950-1;
    b) modification of the title by deleting the wording \'DC output-\' and adding \'switch mode\'.

    General Product Information - (Show below) - (Hide below)

    Committee PEL/22
    Development Note Supersedes 14/30280175 DC. Supersedes BS EN 61204-7, which remains current and will be withdrawn on 16/03/2021. (05/2018)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    IEC 60695-11-20:2015 Fire hazard testing - Part 11-20: Test flames - 500 W flame test method
    IEC 60950-1:2005+AMD1:2009+AMD2:2013 CSV Information technology equipment - Safety - Part 1: General requirements
    IEC 61643-321:2001 Components for low-voltage surge protective devices - Part 321: Specifications for avalanche breakdown diode (ABD)
    IEC 60738-1:2006+AMD1:2009 CSV Thermistors - Directly heated positive temperature coefficient -Part 1: Generic specification
    IEC 60384-14:2013+AMD1:2016 CSV Fixed capacitors for use in electronic equipment - Part 14: Sectional specification - Fixed capacitors for electromagnetic interference suppression and connection to the supply mains
    IEC 60747-3:2013 Semiconductor devices - Part 3: Discrete devices: Signal, switching and regulator diodes
    IEC 60364-4-41:2005+AMD1:2017 CSV Low voltage electrical installations - Part 4-41: Protection for safety - Protection against electric shock
    ISO 3864-2:2016 Graphical symbols Safety colours and safety signs Part 2: Design principles for product safety labels
    IEC 61293:1994 MARKING OF ELECTRICAL EQUIPMENT WITH RATINGS RELATED TO ELECTRICAL SUPPLY - SAFETY REQUIREMENTS
    IEC 61810-1:2015 Electromechanical elementary relays - Part 1: General and safety requirements
    IEC 60747-5-2:1997+AMD1:2002 CSV Discrete semiconductor devices and integrated circuits - Part 5-2: Optoelectronic devices - Essential ratings and characteristics
    IEC 60851-6:2012 WINDING WIRES - TEST METHODS - PART 6: THERMAL PROPERTIES
    IEC 60851-5:2008+AMD1:2011 CSV Winding wires - Test methods - Part 5: Electrical properties
    CENELEC GUIDE 32 : 2014 GUIDELINES FOR SAFETY RELATED RISK ASSESSMENT AND RISK REDUCTION FOR LOW VOLTAGE EQUIPMENT
    IEC 61643-311:2013 Components for low-voltage surge protective devices - Part 311: Performance requirements and test circuits for gas discharge tubes (GDT)
    IEC 60085:2007 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    IEC 61558-1:2017 Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests
    IEC 60146-1-1:2009 Semiconductor converters - General requirements and line commutated converters - Part 1-1: Specification of basic requirements
    IEC 60529:1989+AMD1:1999+AMD2:2013 CSV Degrees of protection provided by enclosures (IP Code)
    IEC 61058-1:2016 Switches for appliances - Part 1: General requirements
    IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
    IEC 60851-3:2009+AMD1:2013 CSV Winding wires - Test methods - Part 3: Mechanical properties
    IEC 61347-2-2:2011 Lamp controlgear - Part 2-2: Particular requirements for d.c. or a.c. supplied electronic step-down convertors for filament lamps
    IEC 60747-5-1:1997+AMD1:2001+AMD2:2002 CSV Discrete semiconductor devices and integrated circuits - Part 5-1: Optoelectronic devices - General
    IEC 61643-331:2003 Components for low-voltage surge protective devices - Part 331: Specification for metal oxide varistors (MOV)
    IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
    IEC 61439-1:2011 Low-voltage switchgear and controlgear assemblies - Part 1: General rules
    IEC 60747-5-5:2007+AMD1:2013 CSV Semiconductor devices - Discrete devices - Part 5-5: Optoelectronic devices - Photocouplers
    IEC 62477-1:2012+AMD1:2016 CSV Safety requirements for power electronic converter systems and equipment - Part 1: General
    IEC 60317-43:1997+AMD1:2010 CSV Specifications for particular types of winding wires - Part 43: Aromatic polyimide type wrapped round copper wire, class 240
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    IEC 61204-7:2016 EXV LOW-VOLTAGE SWITCH MODE POWER SUPPLIES - PART 7: SAFETY REQUIREMENTS
    IEC 61032:1997 Protection of persons and equipment by enclosures - Probes for verification
    IEC 60695-11-5 : 2.0 FIRE HAZARD TESTING - PART 11-5: TEST FLAMES - NEEDLE-FLAME TEST METHOD - APPARATUS, CONFIRMATORY TEST ARRANGEMENT AND GUIDANCE
    IEC 61010-1:2010+AMD1:2016 CSV Safety requirements for electrical equipment for measurement, control, and laboratory use - Part 1: General requirements
    ASTM E 162 : 2016 : REDLINE Standard Test Method for Surface Flammability of Materials Using a Radiant Heat Energy Source
    IEC 62368-1:2014 Audio/video, information and communication technology equipment - Part 1: Safety requirements
    IEC 60990:2016 Methods of measurement of touch current and protective conductor current
    IEC 60799:1998 ELECTRICAL ACCESSORIES - CORD SETS AND INTERCONNECTION CORD SETS
    IEC 60730-1:2013+AMD1:2015 CSV Automatic electrical controls - Part 1: General requirements
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