C22.2 No. 45.1-07

(reaffirmed 2017)

Electrical Rigid Metal Conduit — Steel

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Revision History

C22.2 No. 45.1-07, Electrical rigid metal conduit — Steel — originally published November 2007

Note: For information about the CSA Standards Update Service, go to

store.csagroup.org or e-mail techsupport@csagroup.org.

SEPTEMBER 27, 2019

Standard for Safety for Electrical Rigid Metal Conduit Second Edition, Dated November 30, 2007 Summary of Topics

This revision dated September 27, 2019 includes the following : Annex A Normative References Update

Interpretation of Flammability Test Result for a Thin Nonmetallic Topcoat (Outermost Layer) of an Alternate Corrosion Protection System

Removal of Chamfer Angle Requirement for Couplings

Clarification to Elbow Requirements, Test Bend Radius, and Editorial Changes

tr2 SEPTEMBER 27, 2019

No Text on This Page

National Association of Standardization and Certification of the Electrical Sector

NMX- J-534-ANCE

Second Edition

CSA Group

CSA C22.2 No. 45.1-07

Second Edition

Underwriters Laboratories Inc. UL 6

Fourteenth Edition

Electrical Rigid Metal Conduit – Steel

November 30, 2007

(Title Page Reprinted: September 27, 2019)

ANSI/UL 6-2019

Update No. 2

C22.2 No. 45.1-07

November 2014

Note: For information about the Standards Update Service, go to shop.csa.ca or e-mail

techsupport@csagroup.org.

Title: Electrical Rigid Metal Conduit — Steel — originally published November 2007

The following revisions have been formally approved and are marked by a vertical line in the margin on the attached replacement pages:

• Update your copy by inserting these revised pages.

• Keep the pages you remove for reference.

  
  

  National Association of Standardization and Certification of the Electrical Sector

  NMX- J-534-ANCE

  Second Edition

  
  

  CSA Group

  CSA C22.2 No. 45.1-07

  Second Edition

  
  

  Underwriters Laboratories Inc. UL 6

  Fourteenth Edition

  
  

  Electrical Rigid Metal Conduit – Steel

  
  

  November 30, 2007

  
  

  (Title Page Reprinted: November 14, 2014)

  
  

  ANSI/UL 6-2014

  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 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 and UL pages.

  
  

  
  

  Copyright © 2014 ANCE

  
  

  Rights reserved in favor of ANCE

  
  

  
  

  ISBN 978-1-55436-520-3 © 2007 CSA Group

  
  

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  NOVEMBER 30, 2007 NMX- J-534-ANCE-2007  CSA C22.2 NO. 45.1-07  UL 6 3

  CONTENTS

  Preface 4

  1. Scope 6

  2. Normative references 6

  3. Definitions 6

  4. Units of measurement 7

  5. Construction 7

     1. Tube 7

     2. Finished conduit 8

     3. Protective coatings 9

     4. Threading and chamfering 11

     5. Nipples 13

     6. Elbows 14

     7. Threaded couplings 14

  6. Test requirements 17

     1. Tube 17

     2. Protective coatings 17

  7. Markings 25

Annex A (normative)

A.1 Normative References 32

Annex B (informative)

B.1 Dimensions of ERMC-S 35

Annex C (informative)

C.1 Coating tests overview 36

Annex D (informative)

D.1 Examination of finished product by manufacturer 37

Annex E (informative)

E.1 Alternative National Markings 38

6 NMX- J-534-ANCE-2007  CSA C22.2 NO. 45.1-07  UL 6 NOVEMBER 30, 2007

Electrical Rigid Metal Conduit – Steel

1. Scope

   
   

   1. These requirements cover electrical rigid metal conduit – steel (ERMC-S), elbows, couplings, and nipples for use as a metal raceway for installation of wires and cables in accordance with CSA C22.1, Canadian Electrical Code, Part 1, NOM-001-SEDE, Standard for Electrical Installations, and NFPA 70, National Electrical Code (see Reference Item No. 1, Annex A). ERMC-S is provided with a zinc, zinc-based, nonmetallic, or other alternate corrosion-resistant exterior coating and an organic or zinc interior coating. It is the user’s responsibility to determine the appropriate product for their application.

      
      

   2. Non-ferrous and stainless steel conduit are covered by the standards listed in Reference Item No. 2, Annex A.

      
      

2. Normative references

   
   

   1. Products covered by this standard shall comply with the reference installation codes and standards as appropriate for the country where the product is to be used. When the product is intended for use in more than one country, the product shall comply with the installation codes and standards for all countries where it is intended to be used. A Reference Item No. is provided at the point of use for each reference in this standard. See Annex A for a list of reference publications and the correlating list of reference item numbers to applicable country publications.

      
      

   2. For undated references to standards, such reference shall be considered to refer to the latest edition and all revisions to that edition up to the time when this standard was approved. For dated references to standards, such reference shall be considered to refer to the dated edition and all revisions published to that edition up to the time the standard was approved.

      
      

3. Definitions

   
   

   1. The following definitions apply in this standard.

      
      

   2. Bare threaded tube. A standard length of threaded tube intended to be coated with an alternate corrosion-resistant coating and having a separate coupling.

      
      

   3. Coating(s), alternate corrosion-resistant. A primary coating(s) other than one consisting solely of zinc, which upon evaluation has demonstrated the ability to provide the level of corrosion resistance required on the exterior of conduit. See Clause 6.2.4.

      
      

      Note: The coating(s) may include zinc.

      
      

   4. Coating(s), organic. An interior coating(s), other than one consisting solely of zinc, which, upon evaluation, has demonstrated the ability to provide the level of corrosion resistance necessary where the coating is not subject to physical damage. See Clause 6.2.3.

      
      

      Note: The coating(s) may include zinc.

      
      

   5. Coating(s), zinc. A primary coating consisting solely of zinc, which upon evaluation has demonstrated the ability to provide the level of corrosion resistance required on the exterior or interior of conduit as applicable. See Clause 6.2.2.

      
      

   6. Elbow. A manufactured curved section of ERMC-S threaded on each end.