This is the harmonized CSA Group and UL standard for mechanical protection tubing (MPT) and fittings. It is the fourth edition of CSA C22.2 No. 227.3, and the second 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 18, 2005. This edition of UL 1696 supersedes the first edition of UL 1696 published on March 18, 2005. Previously, requirements for MPT were found in the common CSA and UL Standard for Nonmetallic Mechanical Protection Tubing (NMPT) and UL 1696A, Outline of Investigation for Mechanical Protection Tubing.
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.
This standard has been approved by the American National Standards Institute as an American National Standard.
This Standard applies to nonmetallic or composite mechanical protection tubing (MPT), and nonmetallic, composite or metallic 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.
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) and CSA C22.1-12, Canadian Electrical Code (CE Code), Part I.
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.
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CAN/CSA-C22.2 NO. 227.3-05 (R2010) - Nonmetallic Mechanical Protection Tubing (NMPT) (Bi-National standard, with UL 1696)
Flexible Nonmetallic Tubing
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