CSA C22.2 NO. 227.3:25

Preface This is the harmonized ANCE, CSA Group, and ULSE standard for Mechanical Protection Tubing (MPT) and Fittings . It is the second edition of NMX-J-855-ANCE, the sixth edition of CSA C22.2 No. 227.3, and the fourth edition of UL 1696. This edition of CSA C22.2 No. 227.3 supersedes the previous edition of CSA C22.2 No. 227.3 published on March 31, 2021. This edition of UL 1696 supersedes the third edition of UL 1696 published on March 31, 2021. This harmonized standard was prepared by the Association of Standardization and Certification, (ANCE), CSA Group and ULSE. The efforts and support of the conduit manufacturing industry and the Technical Harmonization Committee 23A, NMPT Working Group, of the Council on the Harmonization of Electrotechnical Standards for the Nations of the Americas (CANENA), 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 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 mechanical protection tubing manufacturers and users. This Standard was reviewed by the CSA Integrated Committee on Nonmetallic Conduit, Tubing, and Fittings, 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. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope 1.1 This Standard applies to nonmetallic or composite mechanical protection tubing (MPT), and nonmetallic, composite or metal fittings, and clamps used for the support, routing and mechanical protection of conductors, wires, and cables. The MPT, fittings, and clamps are intended to be used to interconnect separate component assemblies or consoles of electrical devices, such as robotics, medical or X-ray equipment. The mechanical protection afforded the internal wiring contained within the tubing is considered equivalent to the protection provided by a type SJT flexible cord. Mechanical protection tubing (MPT) may be submitted without fittings, clamps, etc. 1.2 The MPT, fittings, and clamps covered by this Standard are not intended for use as a wiring method in accordance with NFPA 70, National Electrical Code (NEC), CSA C22.1, Canadian Electrical Code (CE Code), Part I and NOM-001-SEDE Standard for Electrical Installations. 1.3 This Standard does not include standard trade sizes. The MPT, fittings, and clamps from different manufacturers are not interchangeable unless the combination of MPT, fittings, and clamps are determined to be in accordance with this Standard. 1.4 This Standard does not apply to tubing with slit or split wall constructions, electrical nonmetallic tubing, liquid-tight flexible non-metallic conduit, flexible metal conduit, liquid-tight flexible metal conduit, jacketed or unjacketed metallic conduit, or EMI/RFI shielding conduits. This Standard does not apply to fittings for use with cable or conduit, liquid-tight flexible nonmetal conduit, electrical nonmetallic tubing, flexible metal conduit, liquid-tight flexible metal conduit, jacketed or unjacketed metallic conduit, or EMI/RFI shielding conduits and strain-relief of a fitting. NOTE 1: Insulating bushings to provide strain-relief for flexible cord and single conductors are covered in the Standard for Insulating Bushings, UL 635, or the Standard for Conduit, Tubing, and Cable Fittings, CSA C22.2 No. 18.3 / UL 514B / NMX-J-017-ANCE. NOTE 2: Flexible aluminum and steel conduit is covered in the Standard for Flexible Metal Conduit, UL 1 or Flexible Metal Conduit and Liquid-Tight Flexible Metal Conduit, CSA C22.2 No. 56. NOTE 3: Liquid-tight flexible metal conduits are covered in the Standard for Liquid-Tight Flexible Metal Conduit, UL 360, or Flexible Metal Conduit and Liquid-Tight Flexible Metal Conduit, CSA C22.2 No. 56. NOTE 4: Fittings for use with cable and conduit are covered in the Standard for Conduit, Tubing, and Cable Fittings, CSA C22.2 No. 18.3 / UL 514B / NMX-J-017-ANCE. NOTE 5: Liquid-tight flexible nonmetallic conduit is covered in the Standard for Liquid-Tight Flexible Nonmetallic Conduit, CSA C22.2 No. 227.2.1 / UL 1660 / NMX-J-764-ANCE. NOTE 6: Electrical Nonmetallic Tubing is covered in the Standard for Electrical Nonmetallic Tubing, UL 1653 / CSA C22.2 No. 227.1 /NMX-J-851-ANCE.