1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1696 Mechanical Protection Tubing (MPT) and FittingsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTH
2、ORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Mechanical Protection Tubing (MPT) and Fittings, UL 1696 Second Edition, Dated January 9, 2015 Summary of Topics This following changes are being issued for UL 1696: 1. New Second Edition of UL 1696
3、, Mechanical Protection Tubing (MPT) and Fittings, which includes requirements for mechanical protection tubing, ttings, and clamps used for the support, routing and mechanical protection of conductors, wires, and cables. The new requirements are substantially in accordance with Proposal(s) on this
4、subject dated July 11, 2014 and October 3, 2014. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwise without prior permission of UL. UL provides this St
5、andard as is without warranty of any kind, either expressed or implied, including but not limited to, the implied warranties of merchantability or tness for any purpose. In no event will UL be liable for any special, incidental, consequential, indirect or similar damages, including loss of prots, lo
6、st savings, loss of data, or any other damages arising out of the use of or the inability to use this Standard, even if UL or an authorized UL representative has been advised of the possibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid for this Standar
7、d, regardless of the form of the claim. Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonable attorneys fees) resulting from any error or deviation
8、introduced while purchaser is storing an electronic Standard on the purchasers computer system. The requirements in this Standard are now in effect, except for those paragraphs, sections, tables, gures, and/or other elements of the Standard having future effective dates as indicated in the preface.
9、The prior text for requirements that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the corresponding reference. JANUARY 9, 2015 UL 1696 tr1UL COPY
10、RIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date Reference April 10, 2015 Entire Standard JANUARY 9, 2015 UL 1696 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CSA
11、 Group CSA C22.2 No. 227.3-15 Fourth Edition Underwriters Laboratories Inc. UL 1696 Second Edition Mechanical Protection Tubing (MPT) and Fittings January 9, 2015 ANSI/UL 1696-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment fo
12、r Amendments This standard is issued jointly by 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 CSA Group or UL at any time. Revisions to this standard will be m
13、ade only after processing according to the standards development procedures of 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. ISBN 978-1-77139-651-6 2015 CSA Group All rights reserved. No part of this publ
14、ication may be reproduced in any form whatsoever without the prior permission of the publisher. This Standard is subject to review ve years from the date of publication, and suggestions for its improvement will be referred to the appropriate committee. To submit a proposal for change, please send th
15、e following information to inquirescsagroup.org and include “Proposal for change” in the subject line: Standard designation (number); relevant clause, table, and/or gure number; wording of the proposed change; and rationale for the change. To purchase CSA Group Standards and related publications, vi
16、sit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2015 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all co
17、pyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the Second Edition including revisions through January 9, 2015. The most recent designation of ANSI/UL 1696 as an American National Standard (AN
18、SI) occurred on January 9, 2015. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Propo
19、sal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. To purchase UL Standards, visit Comm 2000 at http:/m- or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .
20、4 1 Scope .6 2 Normative References .6 3 Denitions 7 4 General Requirements .8 5 Construction 8 5.1 Nonmetallic MPT .8 5.2 Composite MPT 9 5.3 Dimensions 9 5.4 Internal surface 9 5.5 Fittings and Clamps .9 6 Tests 9 6.1 Test Specimens 9 6.2 Conditioning 10 6.3 Identication of materials 10 6.4 Vertic
21、al ame 10 6.5 Tension 12 6.6 Flexibility 13 6.7 Cold impact .13 6.8 Weather resistance 13 6.9 Flame test in cable trays FT4 (optional) 14 6.10 Pull-out .14 6.11 Heat aging 15 6.12 Liquid tightness 15 6.13 Electrical resistance test 16 6.14 Ferrous metal components of MPT ttings .16 7 Marking .16 7.1
22、 MPT .16 7.2 Fittings and clamps 17 Tables 18 Figures .19 JANUARY 9, 2015 CSA C22.2 NO. 227.3-15 UL 1696 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized CSA Group and UL standard for mechanical protection tubi
23、ng (MPT) and ttings. 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 rst edition of UL 1696 published on
24、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 harmonized standard was prepared by CSA Group and Underwriters Laboratories
25、Inc. (UL). 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 consid
26、ered suitable for use for conformity assessment within the stated scope of the standard. 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 Co
27、mmittee on Requirements for Electrical Safety, and has been formally approved by the CSA Technical Committee. This standard has been approved by the American National Standards Institute as an American National Standard. Application of Standard Where reference is made to a specic number of samples t
28、o be tested, the specied 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 purpo
29、se. Level of Harmonization This standard uses an IEC format, but is not based on, nor is it to be considered an IEC standard. This standard is published as an equivalent standard for CSA Group and UL. An equivalent standard is a standard that is substantially the same in technical content, except as
30、 follows: Technical deviations are allowed for codes and governmental regulations and those recognized as being in accordance with NAFTA Article 905, for example, because of fundamental, climatic, geographical, technological or infrastructural factors, scientic justication, or the level of protectio
31、n that the country considers appropriate. Presentation is to be word for word except for editorial changes. Reasons for Differences from IEC The Technical Harmonization Committee determined the safe use of nonmetallic mechanical protection tubing and ttings is dependent on the design and performance
32、 of the raceway and cable systems with which they are intended to be installed. Signicant investigation is required to assess safety and system compatibility issues that may lead to harmonization of traditional North American nonmetallic tubing and ttings with those presently addressed in the known
33、IEC standards. The THC agreed such future investigation might be facilitated by completion of harmonization of the North American standards for mechanical protection tubing and ttings. JANUARY 9, 2015 CSA C22.2 NO. 227.3-15 UL 1696 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR
34、DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the literal text to determine compliance with the standard in accordance with the procedural rules of the standards development orga
35、nization. If more than one interpretation of the literal text has been identied, a revision is to be proposed as soon as possible to each of the standards development organizations to more accurately reect the intent. CSA Group Effective Date The effective date for CSA Group will be announced throug
36、h CSA Informs or a CSA Group Certication Notice. UL Effective Date As of April 10, 2015, all products Listed or Recognized by UL must comply with the requirements in this standard. Between January 9. 2015 and April 10, 2015, new product submittals to UL may be evaluated under all requirements in thi
37、s standard or, if requested in writing, evaluated under presently effective requirements only. The presently effective requirements are contained in the rst edition of UL 1696. A UL effective date is established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. JANUARY
38、 9, 2015 CSA C22.2 NO. 227.3-15 UL 1696 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Mechanical Protection Tubing (MPT) and Fittings 1 Scope 1.1 This Standard applies to nonmetallic or composite mechanical protection tubing (MPT), and no
39、nmetallic, composite or metallic ttings, and clamps used for the support, routing and mechanical protection of conductors, wires, and cables. The MPT, ttings, and clamps are intended to be used to interconnect separate component assemblies or consoles of electrical devices, such as robotics, medical
40、 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 exible cord. Mechanical protection tubing (MPT) may be submitted without ttings, clamps, etc. 1.2 The MPT, ttings, and clamps cove
41、red 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. 1.3 This Standard does not include standard trade sizes. The MPT, ttings, and clamps from different manufacturers
42、are not interchangeable unless the combination of MPT, ttings, and clamps are determined to be in accordance with this Standard. 2 Normative References 2.1 Where reference is made to other publications, such reference shall be considered to refer to the latest edition and all amendments published to
43、 that edition up to the time when this Standard was approved. ASTM * Standards ASTM D 2444 Standard Test Method for Determination of the Impact Resistance of Thermoplastic Pipe and Fittings by Means of a Tup (Falling Weight) ASTM D 5025 Standard Specication for Laboratory Burner Used for Small-Scale
44、 Burning Tests on Plastic Materials ASTM D 5207 Standard Practice for Calibration of 20 and 125 mm Test Flames for Small-Scale Burning Tests on Plastic Materials ASTM D 5423 Standard Specication for Forced Convection Laboratory Ovens for Evaluation of Electrical Insulation ASTM G 155 Standard Practi
45、ce for Operating Xenon Arc Light Apparatus for Exposure for Nonmetallic Materials CSA Group Standards C22.1-12 Canadian Electrical Code (CE Code), Part I CAN/CSA-C22.2 No. 0-10 General requirements Canadian Electrical Code, Part II JANUARY 9, 2015 CSA C22.2 NO. 227.3-15 UL 1696 6UL COPYRIGHTED MATER
46、IAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CAN/CSA-C22.2 No. 0.17 Evaluation of Properties of Polymeric Materials CSA C22.2 No. 211.0-03 (R2013) General Requirements and Methods of Testing for Nonmetallic Conduit CSA C22.2 No. 18.3-12 Conduit, Tubing, and
47、Cable Fittings National Research Council Canada National Building Code of Canada, 2010 UL Standards UL 514B Conduit, Tubing, and Cable Fittings UL 746A Standard for Polymeric Materials Short Term Property Evaluations UL 746B Polymeric Materials Long Term Property Evaluations UL 94 Test for Flammabil
48、ity of Plastic Materials for Parts in Devices and Appliances * American Society for Testing and Materials. 3 Denitions 3.1 The following denitions apply in this Standard: 3.2 Clamp An external device used to secure, but not support, MPT. 3.3 Connector A tting intended to terminate, secure, and suppo
49、rt MPT to an enclosure, equipment or similar device. 3.4 Coupling A tting intended to securely connect two lengths of MPT. 3.5 Fitting A device, such as a coupling or connector, that provides a means for securing MPT to an enclosure, splicing between lengths of MPT, or securing MPT to equipment that maintains the support and protection of the MPT. 3.6 Composite Fitting A tting constructed of both metallic, other than screws and the like
