C22.2 No. 269.1-14

Surge protective devices — Type 1 — Permanently connected

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  Standards Update Service

  C22.2 No. 269.1-14

  November 2014

  
  

  Title: Surge protective devices — Type 1 — Permanently connected

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C22.2 No. 269.1-14

Surge protective devices — Type 1

— Permanently connected

TM

Published in November 2014 by CSA Group A not-for-profit private sector organization

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ISBN 978-1-77139-391-1

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All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher.

Contents

Technical Committee on Industrial Products 3 Subcommittee on Surge Protective Devices 5 Preface 6

1. Scope 7

   
   

2. Reference Publications 8

   
   

3. Definitions and Abbreviations 10

   1. Definitions 10

   2. Abbreviations 13

      
      

4. Construction 13

   1. General 13

   2. Enclosures 14

   3. Overcurrent protection — Internal 14

   4. Supplementary protectors 15

   5. Spacings 15

   6. Printed circuit boards 16

   7. Wiring 16

   8. Bonding 17

      
      

5. Documentation, ratings, and markings 18

   
   

6. Tests 19

   1. General test requirements 19

   2. Combination wave test 19

   3. Nominal discharge current (In) test 20

   4. Operating duty cycle test 21

   5. Temperature test (two-port devices or one-port/multi terminal) 21

   6. Dielectric withstand test 22

   7. Mechanical tests 23

      1. Impact on polymeric enclosures 23

      2. Impact on observation/display openings 24

      3. Deflection for metal enclosures and doors 24

      4. Pigtail connection pull test 25

   8. Short circuit withstand test — For two-port devices 25

   9. Overload behavior test — For two-port devices 26

   10. Overvoltage testing 26

       1. General 26

       2. Abnormal overvoltage — Short circuit current behaviour test 27

       3. Abnormal overvoltage — Intermediate current behaviour test 28

       4. Abnormal overvoltage — Limited current behaviour test 29

   11. Accessibility test for openings in enclosures 30

   12. Terminal voltage decay test 30

       
       

       November 2014

       © 2014 CSA Group

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       C22.2 No. 269.1-14

       Surge protective devices — Type 1 — Permanently connected

       
       

   13. Capacitor endurance test 30

   14. Bonding impedance test 31

   15. Insulating material tests 31

   16. Dielectric voltage-withstand test in lieu of measuring spacings 31

   17. Printed circuit board coating test 32

   18. Leakage current test 32

Annex A (informative) — Optional additional testing information for surge protective devices 47

Technical Committee on Industrial Products

Subcommittee on Surge Protective Devices

Preface

This is the first edition of CSA C22.2 No. 269.1, Surge protective devices — Type 1 — Permanently connected. This Standard is one in a series of five standards dealing with surge protective devices. Upon publication of the entire series, the requirements in these Standards will supersede CSA TIL I-11B on surge protection. This Standard is issued by the CSA Group under Part II of the Canadian Electrical Code.

For general information on the Standards of the Canadian Electrical Code, Part II, see the Preface of CAN/CSA-C22.2 No. 0.

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

This Standard was prepared by the Subcommittee on Surge Protective Devices, under the jurisdiction of the Technical Committee on Industrial Products and the Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the Technical Committee.

Interpretations: The Strategic Steering Committee on Requirements for Electrical Safety has provided the following direction for the interpretation of standards under its jurisdiction: “The literal text shall be used in judging compliance of products with the safety requirements of this Standard. When the literal text cannot be applied to the product, such as for new materials or construction, and when a relevant committee interpretation has not already been published, CSA's procedures for interpretation shall be followed to determine the intended safety principle.”

Notes:

1. Use of the singular does not exclude the plural (and vice versa) when the sense allows.

2. 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.

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C22.2 No. 269.1-14

Surge protective devices — Type 1 — Permanently connected

1 Scope

1.1

This Standard applies to surge protective devices (SPDs) intended for:

1. permanently connected applications designed for limiting surge voltages and discharging surge currents;

2. use on 50/60 Hz circuits over 42 V and up to 750 V ac;

3. installation between the secondary of the service transformer and the line side of the service equipment overcurrent protective device. These devices may also be installed on the load side of the main overcurrent protective device;

4. installation where external overcurrent protection may not be present; and

5. indoor or outdoor use in accordance with the Canadian Electrical Code, Part I.

1.2

Equipment designed solely for other power disturbances such as notches, sags and noise is not within the scope of this document.

1.3

SPDs discussed in this standard contain at least one voltage limiting or voltage switching component for diverting surge currents or dissipating surge energy, or both. Examples of such components are metal oxide varistors, silicon avalanche diodes, spark gaps and gas discharge tubes. Ferroresonators, motor- generators, uninterruptible power supplies, and filters containing only inductive or capacitive components are not considered SPDs in this standard.

1.4

In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the standard.

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.

Notes to tables and figures are considered part of the table or figure and may be written as requirements.

Annexes are designated normative (mandatory) or informative (nonmandatory) to define their application.