CSA Group CSA C22.2 No. 18.3:12 National Standard of Canada (reaffirmed 2022) Conduit, tubing, and cable fitting

Preface

This is the harmonized ANCE, CSA Group, and ULSE standard for Conduit, Tubing, and Cable Fittings. It is the Third edition of NMX-J-017-ANCE, the Second edition of CSA C22.2 No. 18.3, and the Sixth edition of UL 514B. This edition of CSA-C22.2 No. 18.3 supersedes the previous edition(s) published in 2004.

This edition of UL 514B supersedes the previous edition(s) published in 2004. This harmonized standard has been jointly revised on iMarch 28, 2024. For this purpose, CSA Group and ULSE are issuing revision pages dated iMarch 28, 2024, and ANCE is issuing a new edition dated iMarch 28, 2024.

This harmonized standard was prepared by the Association of Standardization and Certification (ANCE), CSA Group and iULSE Inc. (ULSE). The efforts and support of the Technical Harmonization Subcommittee, Conduit and Cable Fittings, 23A, of the Council on the Harmonization of Electrotechnical Standards of the Nations of the Americas (CANENA), are gratefully acknowledged.

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

The present Mexican standard was developed by the CT 23, Electrical Accessories from the Comite de Normalizacion de la Asociacion de Normalizacion y Certificacion, A.C., CONANCE, with the collaboration of the conduit, tubing and cable fittings manufacturers and users.

This Standard was reviewed by the CSA Integrated Committee on Fittings, Hardware, and Positioning Devices, under the jurisdiction of the CSA Technical Committee on Wiring Products and the CSA Strategic Steering Committee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee.

Application of Standard

Where reference is made to a specific number of samples 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 it to be considered equivalent to, an IEC standard. This standard is published as an equivalent standard for ANCE, CSA Group, and ULSE.

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

Thisi standard is not based on an IEC standard or IEC requirements, but is formatted and organized using the IEC formatting criteria. The Technical Harmonization Committee identified two main reasons the requirements in this standard were not harmonized with IEC requirements. First, there is no corresponding IEC standard covering fittings only. Instead, IEC requirements for fittings are included under several separate IEC standards that cover the specific systems in which a fitting is used. The time required to research and identify specific fittings requirements in each of the relevant IEC conduit, tubing, and cable Conduit, Tubing, and Cable Fittings

Scope

1.1 These requirements cover FITTINGS for use with cable and conduit intended for installation in accordance with the National Electrical Code, ANSI/NFPA 70, the Canadian Electrical Code (CE Code), Part I, CSA C22.1, and the Standard for Electrical Installations, NOM-001-SEDE.

1.2 These requirements cover CONDUIT LOCKNUTS, conduit BUSHINGS, metal stud BUSHINGS, CONDUIT BODIES, and entrance ELBOWS; FITTINGS for electrical metallic tubing, flexible metal conduit, intermediate metal conduit, liquid-tight flexible conduit, rigid metal conduit, and SERVICE-ENTRANCE HEADS; FITTINGS or box clamps referenced from other standards for armored cable, metal-clad cable, aluminum-sheathed cable, mineral-insulated cable, nonmetallic-sheathed cable, service-entrance cable, and tray cable, and submersible FITTINGS; FITTINGS for flexible cord, flexible nonmetallic and metallic tubing, INSULATING BUSHINGS, grips, reducing washers, and NIPPLES.

Note 1: In Canada, fittings for metal-clad (MC) cable, intermediate metal conduit (IMC), flexible metallic tubing, flexible nonmetallic tubing, and CONDUIT BODIES are not recognized. CONDUIT BODIES are considered FITTINGS.

Note 2: In Canada, armored cable includes Type TECK cable.

Note 3: In Canada, tray cable includes any "TC rated" cable.

Note 4: In Mexico and the United States, requirements for submersible FITTINGS are provided in NMX-J-235/2-ANCE or UL 50E.

Note 5: In Mexico, intermediate metal conduit is designated as semi-heavy metal conduit.

1.3 In Mexico and the United States, these requirements cover CONDUIT BODIES for rigid polyvinyl chloride (PVC) conduit. These products are intended to be used with Schedule 40, Type EB, Type A and Schedule 80 PVC conduit, ELBOWS, and other bends.

In Canada, requirements for fittings intended for use with rigid PVC conduit are addressed in CSA C22.2

No. 85.

1.4 These requirements do not cover FITTINGS intended for use in hazardous locations as defined in the National Electrical Code, ANSI/NFPA 70, the Canadian Electrical Code (CE Code), Part I, CSA C22.1, and the Standard for Electrical Installations, NOM-001-SEDE.

1.5 These requirements do not cover FITTINGS intended for use with surface raceway systems.

1.6 These requirements do not cover conduit NIPPLES, threaded ELBOWS, and threaded COUPLINGS intended for use with rigid metal conduit or intermediate metal conduit.

1.7 In addition to covering male threaded FITTINGS for use with cable and conduit, these requirements also cover male threaded FITTINGS for use with or without a locknut and intended for securement to enclosures:

a) having threaded openings or knockouts, or

b) fittings with internal female threads (e.g., HUBs, conduit bodies, couplings).

1.8 These requirements cover cable fittings that are intended to be used with:

a) specific corresponding single-conductor PV wire or distributed generation DG in the US and Mexico; and type RPVU cable, of all sizes in Canada;

b) distributed generation Type DG cables in the US and Mexico; and

c) Type RPVU cable of all sizes in Canada.

Note 1: In US and Mexico, Distributed Generation DG cable is a multi-conductor, nonintegrally jacketed, cable intended for use in distributed generation applications with specific equipment/devices such as photovoltaic modules, inverters, rapid shutdown equipment, solar trackers, etc. In the US and Mexico, Type DG cable is evaluated in accordance with Outline of Investigation for Distributed Generation Cables, UL 3003.

Note 2: In Canada, Type “RPVU” rated cables are evaluated in accordance with CSA C22.2 No. 271, Photovoltaic cables.

Note 3: In the US and Mexico, Type PV wire is evaluated in accordance with the Standard for Photovoltaic Wire, UL 4703.