• IEC TR 60664-2-1:2011

    Current The latest, up-to-date edition.

    Insulation coordination for equipment within low-voltage systems - Part 2-1: Application guide - Explanation of the application of the IEC 60664 series, dimensioning examples and dielectric testing

    Available format(s):  Hardcopy, PDF, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English - French

    Published date:  31-01-2011

    Publisher:  International Electrotechnical Committee

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

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principles and practical application of the IEC 60664
      series for insulation dimensioning of LV equipment
    5 Four examples showing appropriate dimensioning
      of insulation within equipment
    6 Practical application of the IEC 60664 series with
      regards to particular questions
    7 Examples of a dimensioning worksheet (based on
      case A as described in IEC 60664-1:2007)
    Annex A (informative) - Overview of Clauses of
            IEC 60664-1 requiring decisions by technical
            committees, specification of options or requiring
            activities by the manufacturer
    Annex B (informative) - Overview of Clauses of
            IEC 60664-4 requiring decisions by technical
            committees
    Annex C (informative) - Overview of Clauses of IEC 60664-5
            requiring decisions by technical committees,
            specification of options or requiring activities
            by the manufacturer
    Annex D (informative) - Dimensioning of clearances
            and creepage distances for d.c. voltages above
            1000 V d.c.
    Bibliography

    Abstract - (Show below) - (Hide below)

    IEC/TR 60664-2-1:2011, which is a technical report, serves as an application guide for technical committees and manufacturers specifying dimensioning requirements for products in accordance with the IEC 60664 series. The significant items for consideration are as follows:
    a) nominal system voltage(s) or rated insulation voltage(s);
    b) overvoltage category of the products (OV cat.);
    c) any type of overvoltages;
    d) frequency of the voltage;
    e) characteristics of the solid insulating material;
    f) pollution degree and humidity levels.
    The main changes with respect to the previous edition are listed below:
    - the previous edition was only an application guide for IEC 60664-1. This second edition takes into account not only IEC 60664-1 but also the other parts IEC 60664-3, IEC 60664-4, and IEC 60664-5 and their interrelation;
    - principles of the IEC 60664 series for insulation dimensioning of LV equipment are explained and examples of practical application are provided together with some background information;
    - Annex A provides an overview of clauses of IEC 60664-1 requiring decisions by technical committees, or specification of options, or requiring activities of the manufacturer;
    - Annex B provides an overview of such clauses of IEC 60664-4;
    - Annex C provides an overview of such clauses of IEC 60664-5;
    - Annex D amends the tables of Annex F of IEC 60664-1:2007 with rated impulse voltages for voltages line to neutral derived from nominal d.c. voltages up to and including 1 500 V.
    The contents of the corrigendum of October 2011 have been included in this copy.

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

    Committee TC 109
    Development Note Supersedes IEC 60664-2-1. (02/2011) Stability Date: 2017. (11/2012) Also numbered as BIS IS 15382-2-1. (02/2015)
    Document Type Technical Report
    Publisher International Electrotechnical Committee
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    14/30297601 DC : 0 BS EN 61643-351 - COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST CIRCUITS FOR LIGHTNING ISOLATION TRANSFORMERS (LIT)
    I.S. EN 62790:2015 JUNCTION BOXES FOR PHOTOVOLTAIC MODULES - SAFETY REQUIREMENTS AND TESTS
    IEC 61643-352:2018 Components for low-voltage surge protection - Part 352: Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
    BS EN 62790 : 2015 JUNCTION BOXES FOR PHOTOVOLTAIC MODULES - SAFETY REQUIREMENTS AND TESTS
    12/30260696 DC : 0 BS EN 50521 - CONNECTORS FOR PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
    S.R. HD 60364-5-534:2016 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-53: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - ISOLATION, SWITCHING AND CONTROL - CLAUSE 534: DEVICES FOR PROTECTION AGAINST TRANSIENT OVERVOLTAGES
    16/30339801 DC : 0 BS EN 63052 - POWER FREQUENCY OVERVOLTAGE PROTECTIVE DEVICES FOR HOUSEHOLD AND SIMILAR APPLICATIONS (POP)
    BS EN 61643-351 : 2017 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)
    I.S. EN 62606:2013 GENERAL REQUIREMENTS FOR ARC FAULT DETECTION DEVICES
    CEI EN 61643-351 : 1ED 2017 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)
    EN 61643-351 : 2017 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT) (IEC 61643-351:2016)
    BS IEC 62790 : 2014 JUNCTION BOXES FOR PHOTOVOLTAIC MODULES - SAFETY REQUIREMENTS AND TESTS
    BS PD IEC TS 62993 : 2017 GUIDANCE FOR DETERMINATION OF CLEARANCES, CREEPAGE DISTANCES AND REQUIREMENTS FOR SOLID INSULATION FOR EQUIPMENT WITH A RATED VOLTAGE ABOVE 1000 V AC AND 1500 V DC, AND UP TO 2000 V AC AND 3000 V DC
    EN IEC 61730-1:2018/AC:2018-06 PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION - PART 1: REQUIREMENTS FOR CONSTRUCTION (IEC 61730-1:2016)
    IEC 61643-351:2016 Components for low-voltage surge protective devices - Part 351: Performance requirements and test methods for telecommunications and signalling network surge isolation transformers (SIT)
    BS EN IEC 61643-352:2018 (published 2018-04) Components for low-voltage surge protection Selection and application principles for telecommunications and signalling network surge isolation transformers (SITs)
    BS EN 60947-3 : 2009 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS
    I.S. EN 50521:2008 CONNECTORS FOR PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
    EN 60947-2:2017 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS (IEC 60947-2:2016 + COR1:2016)
    I.S. EN IEC 61643-352:2018 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 352: SELECTI AND APPLICATION PRINCIPLES FOR TELECOMMUNICATIONS AND SIGNALLIN NETWORK SURGE ISOLATION TRANSFORMERS (SITS)
    I.S. EN 62852:2015 CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
    BS EN 60947-2:2017 (published 2017-11) Low-voltage switchgear and controlgear Circuit-breakers
    BS EN 62606:2013 General requirements for arc fault detection devices
    I.S. EN 62052-31:2016 ELECTRICITY METERING EQUIPMENT (AC) - GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - PART 31: PRODUCT SAFETY REQUIREMENTS AND TESTS
    IEC 60947-2 REDLINE : 5ED 2016 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS
    I.S. EN IEC 62688:2018 CONCENTRATOR PHOTOVOLTAIC (CPV) MODULES AND ASSEMBLIES - SAFETY QUALIFICATION
    IEEE C62.42.0 : 2016 APPLICATION OF SURGE-PROTECTIVE COMPONENTS IN SURGE-PROTECTIVE DEVICES AND EQUIPMENT PORTS - OVERVIEW
    CEI EN 62606 : 2014 GENERAL REQUIREMENTS FOR ARC FAULT DETECTION DEVICES
    I.S. EN 61643-351:2017 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTIVE DEVICES - PART 351: PERFORMANCE REQUIREMENTS AND TEST METHODS FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SIT)
    I.S. EN 60947-2:2017 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 2: CIRCUIT-BREAKERS
    EN IEC 61643-352 : 2018 COMPONENTS FOR LOW-VOLTAGE SURGE PROTECTION - PART 352: SELECTION AND APPLICATION PRINCIPLES FOR TELECOMMUNICATIONS AND SIGNALLING NETWORK SURGE ISOLATION TRANSFORMERS (SITS) (IEC 61643-352:2018)
    UNE-EN 62790:2015 Junction boxes for photovoltaic modules - Safety requirements and tests
    CEI EN 60146-1-1 : 2013 SEMICONDUCTOR CONVERTERS - GENERAL REQUIREMENTS AND LINE COMMUTATED CONVERTERS - PART 1-1: SPECIFICATION OF BASIC REQUIREMENTS
    UNE-EN 62852:2015 Connectors for DC-application in photovoltaic systems - Safety requirements and tests
    I.S. EN IEC 61730-1:2018 PHOTOVOLTAIC (PV) MODULE SAFETY QUALIFICATION - PART 1: REQUIREMENTS FOR CONSTRUCTION
    PD IEC/TR 61916:2017 ELECTRICAL ACCESSORIES - HARMONIZATION OF GENERAL RULES
    IEC TR 61916:2017 Electrical accessories - Harmonization of general rules
    IEC 61730-1:2016 Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction
    I.S. EN 60947-3:2009 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS
    IEC 60947-2:2016 Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
    IEC 62052-31:2015 Electricity metering equipment (AC) - General requirements, tests and test conditions - Part 31: Product safety requirements and tests
    BS IEC 62852 : 2014 CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
    13/30238229 DC : 0 BS EN 62052-31 - ELECTRICITY METERING EQUIPMENT (AC) - GENERAL REQUIREMENTS, TEST AND TEST CONDITIONS - PART 31: PRODUCT SAFETY REQUIREMENTS
    IEC 62852:2014 Connectors for DC-application in photovoltaic systems - Safety requirements and tests
    IEC 60947-3:2008+AMD1:2012+AMD2:2015 CSV Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
    BS EN 60947-2:2017+A1:2020 (published 2020-02) Low-voltage switchgear and controlgear Circuit-breakers
    EN 62852:2015 CONNECTORS FOR DC-APPLICATION IN PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS (IEC 62852:2014)
    BS EN 62852:2015 Connectors for DC-application in photovoltaic systems. Safety requirements and tests
    BS EN 50521 : 2009 CONNECTORS FOR PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS
    BS EN 62052-31:2016 (published 2016-06) Electricity metering equipment (AC). General requirements, tests and test conditions Product safety requirements and tests
    UNE-EN 50521:2010 Connectors for photovoltaic systems - Safety requirements and tests
    EN 62790 : 2015 JUNCTION BOXES FOR PHOTOVOLTAIC MODULES - SAFETY REQUIREMENTS AND TESTS (IEC 62790:2014)
    UNE-EN 60947-3:2009 Low-voltage switchgear and controlgear -- Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
    EN 60947-3:2009/A2:2015 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 3: SWITCHES, DISCONNECTORS, SWITCH-DISCONNECTORS AND FUSE-COMBINATION UNITS (IEC 60947-3:2008/A2:2015)
    IEC 60947-2:2016 RLV Low-voltage switchgear and controlgear - Part 2: Circuit-breakers
    EN 62052-31 : 2016 ELECTRICITY METERING EQUIPMENT (AC) - GENERAL REQUIREMENTS, TESTS AND TEST CONDITIONS - PART 31: PRODUCT SAFETY REQUIREMENTS AND TESTS (IEC 62052-31:2015)
    HD 60364-5-534:2016 (edition 2) Low-voltage electrical installations - Part 5-53: Selection and erection of electrical equipment - Isolation, switching and control - Clause 534: Devices for protection against transient overvoltages
    EN 62606:2013/A1:2017 GENERAL REQUIREMENTS FOR ARC FAULT DETECTION DEVICES (IEC 62606:2013/A1:2017)
    EN 50521:2008/A1:2012 CONNECTORS FOR PHOTOVOLTAIC SYSTEMS - SAFETY REQUIREMENTS AND TESTS

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

    IEC 60112:2003+AMD1:2009 CSV METHOD FOR THE DETERMINATION OF THE PROOF AND THE COMPARATIVE TRACKING INDICES OF SOLID INSULATING MATERIALS
    IEC 60038:2009 IEC standard voltages
    IEC 60664-4:2005 Insulation coordination for equipment within low-voltage systems - Part 4: Consideration of high-frequency voltage stress
    IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
    IEC 60050-212:2010 International Electrotechnical Vocabulary (IEV) - Part 212: Electrical insulating solids, liquids and gases
    IEC 62019:1999+AMD1:2002 CSV Electrical accessories - Circuit-breakers and similar equipment for household use - Auxiliary contact units
    IEC 60085:2007 ELECTRICAL INSULATION - THERMAL EVALUATION AND DESIGNATION
    IEC 60364-4-44:2007+AMD1:2015 CSV Low-voltage electrical installations - Part 4-44: Protection for safety - Protection against voltage disturbances and electromagnetic disturbances
    IEC 60947-1:2007+AMD1:2010+AMD2:2014 CSV Low-voltage switchgear and controlgear - Part 1: General rules
    IEC 60194:2015 Printed board design, manufacture and assembly - Terms and definitions
    IEC 60669-1:2017 Switches for household and similar fixed-electrical installations - Part 1: General requirements
    IEC 60664-5:2007 Insulation coordination for equipment within low-voltage systems - Part 5: Comprehensive method for determining clearances and creepage distances equal to or less than 2 mm
    IEC 60050-826:2004 International Electrotechnical Vocabulary (IEV) - Part 826: Electrical installations
    ISO/IEC Guide 2:2004 Standardization and related activities General vocabulary
    IEC 60664-3:2016 INSULATION COORDINATION FOR EQUIPMENT WITHIN LOW-VOLTAGE SYSTEMS - PART 3: USE OF COATING, POTTING OR MOULDING FOR PROTECTION AGAINST POLLUTION
    IEC 61140:2016 Protection against electric shock - Common aspects for installation and equipment
    IEC 60664-1:2007 Insulation coordination for equipment within low-voltage systems - Part 1: Principles, requirements and tests
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