C22.2 No. 280-13

Electric vehicle supply equipment

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Standards Update Service

C22.2 No. 280-13

February 2013

Title: Electric vehicle supply equipment

Pagination: 152 pages, each dated February 2013

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  Association of Standardization and Certification NMX-J-677-ANCE-2013

  First Edition

  
  

  CSA Group

  CSA C22.2 No. 280-13

  First Edition

  
  

  Underwriters Laboratories Inc. UL 2594

  First Edition

  
  

  Standard for Electric Vehicle Supply Equipment

  
  

  February 22, 2013

  
  

  
  

  ANSI/UL 2594-2013

  Commitment for Amendments

  
  

  This standard is issued jointly by the Association of Standardization and Certification (ANCE), the Canadian Standards Association (operating as “CSA Group”), and Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of ANCE, CSA Group, and UL. CSA Group and UL will issue revisions to this standard by means of a new edition or revised or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the same date of issue as the CSA Group and UL pages.

  
  

  
  

  Copyright © 2013 ANCE

  
  

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  ISBN 978-1-55491-813-3 © 2013 CSA Group

  
  

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  CONTENTS

  Preface 7

  INTRODUCTION

  1. Scope 9

  2. Units of Measurement 10

  3. Components 10

  4. Normative References 10

  5. Definitions 10

     CONSTRUCTION

  6. General 14

     1. EV cord sets 14

     2. EV charging stations 15

     3. EV power outlets 16

  7. Frame and Enclosure 16

     1. General 16

     2. Access covers 17

     3. Metallic enclosures 17

     4. Nonmetallic enclosures 20

     5. Openings in enclosures 21

     6. Mechanical strength of enclosures 31

     7. Environmental considerations 31

  8. Protection of Users – Accessibility and User Servicing 31

     1. General 31

     2. Accessibility 31

     3. User servicing 34

  9. Protection Against Electric Shock 34

     1. General 34

     2. Personnel protection systems 35

     3. Stored energy on capacitors 35

  10. Corrosion Protection Against Electric Shock 35

  11. Mechanical Assembly 35

  12. Supply Connections 36

      1. Permanently connected devices 36

      2. Cord connected devices 44

      3. Direct plug-in devices 47

  13. Output Connections and Wiring 52

      1. General 52

      2. Strain relief 54

      3. Bushings 54

  14. Equipment Grounding 54

  15. Bonding 59

  16. EV Bonding 62

  17. Internal Wiring 62

      1. Wires 62

      2. Protection of wires 62

  18. Flammability 63

  19. Current Carrying Parts 64

  20. Electrical Connections 64

  21. Gaskets 65

  22. Spacings 65

      1. General 65

      2. Insulation barriers 67

  23. Alternate Spacings – Clearances and Creepage Distances 68

  24. Separation of Circuits 68

      1. Factory wiring 68

      2. Separation barriers 69

      3. Field wiring 69

  25. Control Circuits 69

      1. Secondary control circuits 69

      2. Primary control circuits 71

  26. Switches and controls 72

  27. Capacitors, Resistors, and Suppressors 73

      1. Capacitors 73

      2. Resistors 74

      3. Suppressors 74

  28. Supplementary Overcurrent Protective Devices 74

      1. General 74

      2. Supplementary protection 75

      3. User replaceable protection devices 76

  29. Transformers 76

      1. General 76

      2. Coil insulation 77

  30. Printed Wiring Boards 79

  31. Insulating Materials 79

  32. Protection of Service Personnel 79

  33. Electronic Protection Circuits 80

  34. Cord Reels 81

  35. Luminaires 81

      PROTECTION OF USERS AGAINST INJURY

  36. General 82

  37. Sharp Edges 82

  38. Enclosures and Guards 83

  39. Strength of Enclosures 83

  40. Surface Temperatures 83

  41. Stability 84

  42. Mounting Means 85

  43. Strength of Handles 85

  44. Height of Coupling Means 85

      PERFORMANCE

  45. General 85

  46. Leakage Current Test 86

  47. Leakage Current Test Following Humidity Conditioning 90

  48. Input Test 90

  49. Temperature Test 90

  50. Capacitor Discharge Test 93

  51. Dielectric Voltage Withstand Test 94

      1. General 94

      2. Maximum voltage measurements 95

      3. AC and DC power circuits (primary) 95

      4. Secondary circuits 96

      5. Induced potential 96

  52. Abnormal Tests 97

      1. General 97

      2. Transformer burnout test 98

      3. Transformer overload test 100

      4. Short circuit test 101

      5. Capacitor fault test 102

      6. Forced ventilation test 102

      7. Component fault tests 102

      8. Electrolytic capacitor fault test 102

      9. Vibration test 103

  53. Flanged Bobbin Transformer Abnormal Test 103

  54. Strain Relief Tests 105

      1. General 105

      2. Pull strain relief test 105

      3. Push back strain relief test 106

  55. EV Cable Secureness Test 106

  56. Grounding Tests 107

      1. Ground impedance test 107

      2. Ground continuity test 108

  57. Impact Test 108

  58. Vehicle Drive Over Test 110

  59. Drop Test 110

  60. Strength of Terminal Insulating Base and Support 110

  61. Impact on Glass Covers 110

  62. Bonding Conductor Tests 111

      1. General 111

      2. Current test 111

      3. Limited short circuit test 111

  63. Evaluation of Reduced Spacings on Printed Wiring Boards 112

  64. Mounting Means Test 112

  65. Strength of Handles 112

  66. Mold Stress-Relief Distortion Test 113

  67. Additional Environmental Tests 113

      1. General 113

      2. Water exposure test 113

      3. UV exposure 114

      4. Chemical exposure 114

  68. Tests for Permanence of Cord Tags 114

  69. Tests on Transformer Insulating Materials 115

  70. Harmonic Distortion 115

  71. Metallic Coating Thickness Test 116

  72. Overcurrent Protection Calibration Test 117

      MARKINGS

  73. General 118

  74. Environmental Enclosure Markings 121

  75. Cautionary Markings 121

      INSTRUCTIONS

  76. General 124

  77. Instructions Pertaining to Risk of Fire, Electric Shock, or Injury to Persons 125

  78. Installation Instructions 130

  79. Operating Instructions 131

  80. User Maintenance Instructions 131

  81. Moving, Transporting, and Storage Instructions 131

Annex A – Referenced Standards (Normative)

Annex B – Test Sequences and Sample Requirements (Informative)

B1 Test Summary 140

B2 Sample Requirements 142

B2.1 Type tests 142

B2.2 Environmental tests 143

Annex C – French and Spanish Translations (Informative)

C1 French and Spanish Translations 145

Preface

This is the harmonized ANCE, CSA Group, and UL Standard for Electric Vehicle Supply Equipment. It is the First edition of NMX-J-677-ANCE, the First edition of CSA C22.2 No. 280, and the First edition of UL 2594.

This harmonized standard was prepared by the Association of Standardization and Certification (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Working Group for Electric Vehicle Supply Equipment are gratefully acknowledged.

This standard is considered suitable for use for conformity assessment within the stated scope of the Standard.

The present Mexican Standard was reviewed and approved by the Comité de Normalización de la Asociación de Normalización y Certificación, A.C., CONANCE.

This standard was reviewed by the CSA Subcommittee on Electric Vehicle – Supply Equipment, under the jurisdiction of the CSA Technical Committee on Industrial Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee.

This standard has been approved by the American National Standards Institute (ANSI) as an American National Standard.

Where reference is made to a specific number of specimens to be tested, the specified number is to be considered a minimum quantity.

Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitability for their particular purpose.

Level of harmonization

This standard uses the IEC format but is not based on, nor is considered equivalent to, an IEC standard. This standard is published as an equivalent standard for ANCE, CSA Group, and UL.

An equivalent standard is a standard that is substantially the same in technical content, except as follows: Technical national differences are allowed for codes and governmental regulations as well as those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental climatic, geographical, technological, or infrastructural factors, scientific justification, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes.

Reasons for differences from IEC

This standard provides general requirements for electric vehicle supply equipment for use in accordance with the electrical installation codes of Canada, Mexico, and the United States. At present there is no IEC standard for these products for use in accordance with these codes. Therefore, this standard does not employ any IEC standard for base requirements.

Interpretations

The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development organization. If more than one interpretation of the literal text has been identified, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reflect the intent.

ANCE effective date

The effective date for ANCE will be announced through the Diario Oficial de la Federación (Official Gazette) and is indicated on the cover page.

CSA Group effective date

The effective date for CSA Group will be announced through CSA Informs or a CSA Group certification notice.

UL effective date

As of February 22, 2013, all products Listed or Recognized by UL must comply with the requirements in this Standard.

A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard.

INTRODUCTION

1. Scope

   
   

   1. This Standard covers conductive electric vehicle (EV) supply equipment with a primary source voltage of 600 V ac or less, with a frequency of 60 Hz, and intended to provide ac power to an electric vehicle with an on-board charging unit. This Standard covers electric vehicle supply equipment intended for use where ventilation is not required.

      
      

   2. With reference to 1.1, the electric vehicle supply equipment covered by this Standard includes:

      
      

      1. Portable EV Cord Sets – Rated 125 Vac maximum, 20 A maximum, intended for indoor and outdoor use;

         
         

      2. Stationary EV Cord Sets – Rated 125 Vac maximum, 20 A maximum, intended for indoor and outdoor use;

         
         

      3. Stationary EV Cord Sets – Rated 250 Vac maximum, 40 A maximum, intended for indoor use only;

         
         

      4. Movable EV Charging Stations – Rated 125 Vac maximum, intended for indoor and outdoor use;

         
         

      5. Movable EV Charging Stations – Rated 250 Vac maximum, 40 A maximum, intended for indoor use only;

         
         

      6. Permanent EV Charging Station – Rated 600 Vac maximum, intended for indoor or indoor/ outdoor use; or

         
         

      7. Permanent EV Power Outlet – Rated 600 Vac maximum, intended for indoor or indoor/ outdoor use.

         
         

         EV Power Outlets provide a receptacle where one did not previously exist.

         
         

         For Mexico, use 127 Vac where 120 or 125 Vac is referenced in this Standard. In Canada and the United States, this does not apply.

         
         

   3. The products covered by this Standard are intended for use in accordance with the Installation Codes in Annex A, Ref. No.1.

      
      

   4. This Standard does not cover cord sets or power supply cords for applications other than EV charging cord sets. For cord sets and power supply cords not covered by this Standard, refer to Annex A, Ref. No. 2 and No. 3.

      
      

   5. With reference to 1.2, this Standard does not cover electric vehicle charging equipment. For EV charging equipment not covered by this Standard, refer to Annex A, Ref. No. 4.