ANSI UL 2239-2015 UL Standard for Safety Hardware for the Support of Conduit Tubing and Cable (Second Edition).pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2239 Hardware for the Support of Conduit, Tubing, and CableUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL N

2、OT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Hardware for the Support of Conduit, Tubing, and Cable, UL 2239 Second Edition, Dated February 20, 2015 Summary of Topics The new edition dated February 20, 2015 was issued to incorporate min

3、or editorial changes, some clarications, organizational changes, renumbering changes, and the following: Revisions to the Flammability Test, Clause 6.7. Additional Requirements for Protector Bushings. Additional Requirements for Protector Plates. Clarication of the Term “Interior” in Clause 5.3.4. D

4、eletion of Insulated Standoff Requirements for Canada in Accordance with the CEC. Modication of Annex A, Smoke and Heat Release Test, to Align with the New Edition of the Standard for Fire Test for Heat and Visible Smoke Release for Discrete Products and Their Accessories Installed in Air-Handling S

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12、UL CSA Group CSA C22.2 No. 18.4-15 Second Edition Underwriters Laboratories Inc. UL 2239 Second Edition Hardware for the Support of Conduit, Tubing, and Cable February 20, 2015 ANSI/UL 2239-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL

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20、 Second Edition. The most recent designation of ANSI/UL 2239 as an American National Standard (ANSI) occurred on February 20, 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

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22、T AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .5 1 Scope .7 2 Normative References .7 3 Denitions 9 4 General Requirements 10 5 Construction .10 5.1 General 10 5.2 Materials .11 5.3 Protection against corrosion 12 6 Product Testing for all HARDWARE

23、 DEVICES .12 6.1 General 12 6.2 Assembly test .13 6.3 Metallic coating thickness test .14 6.4 Alternative corrosion protection systems tests .15 6.5 ELASTOMERIC materials test .17 6.6 Mold stress-relief test 18 6.7 Flammability test 18 6.8 Wet location use 18 6.9 Smoke and heat release test .19 7 Pr

24、oduct Testing for HANGERS, STAPLES, and STRAPS .19 7.1 General 19 7.2 Pull test 20 7.3 Impact test .21 8 Product Testing for BEAM CLAMPS 21 8.1 General 21 8.2 Pull test 21 9 Product Testing for STANDOFFS 22 9.1 Mold stress .22 9.2 Voltage withstand .22 10 Product Testing for PROTECTOR BUSHINGS .22 1

25、0.1 General .22 10.2 Assembly preparation .22 10.3 Dislodge test 23 10.4 Test sequence .23 10.5 Inspection .23 11 Markings .23 12 Installation Instructions 24 ANNEX A (normative) Smoke and Heat Release Test (See Clause 6.9.1.) A.1 Scope 32 A.2 Apparatus .32 A.2.1 General 32 A.2.2 Ignition source 32

26、A.2.3 Test frame enclosure and burner 34 A.2.4 Collection hood and exhaust duct .36 A.2.5 Velocity measuring instruments .38 A.2.6 Gas sampling and analysis equipment .38 FEBRUARY 20, 2015 CSA C22.2 NO. 18.4-15 UL 2239 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION

27、WITHOUT PERMISSION FROM UL A.2.7 Smoke measuring equipment .40 A.2.8 Data acquisition .40 A.2.9 Photographic and video equipment 40 A.3 Pretest Calibration .40 A.3.1 Oxygen analyzer 40 A.3.2 Heat release rate 41 A.3.3 Photometer system 41 A.4 Test Specimens .41 A.5 Test Procedure 41 A.5.1 Initial pr

28、eparation 41 A.5.2 Procedure 42 A.6 Calculations .42 A.6.1 Calibration constant 42 A.6.2 Heat release rate 44 A.6.3 Smoke release rate 45 A.6.4 Total smoke released 46 A.6.5 Normalized optical density 46 A.7 Report 47 FEBRUARY 20, 2015 CSA C22.2 NO. 18.4-15 UL 2239 4UL COPYRIGHTED MATERIAL NOT AUTHO

29、RIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized CSA and UL standard for Hardware for the Support of Conduit, Tubing, and Cable. It is the second edition of CSA C22.2 No. 18.4 and the second edition of UL 2239. This edition of CSA C22.2 No. 18.

30、4 supersedes the previous edition(s) published in 2004. This harmonized standard was prepared by CSA Group and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Subcommittee for Conduit and Cable Hardware, of the Council on the Harmonization of Electrotechni

31、cal 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 the standard. This standard was reviewed by the CSA Subcommittee on ICCM03-Fittings, Hardware and Positioning Devices

32、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 approved by the American National Standards Institute (ANSI)

33、as an American National Standard. Where reference is made to a specic number of samples to 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 respon

34、sibility 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 CSA Group and

35、 UL. 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 funda

36、mental climatic, geographical, technological, or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is word for word except for editorial changes. Reasons for differences from IEC The THSC investigated and found no existing

37、IEC standards or work programs covering the scope of the products in this standard. 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 proced

38、ural rules of the standards development organization. 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. FEBRUARY 20, 2015 CSA C22.2 NO. 18.4-1

39、5 UL 2239 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CSA Group Effective Date The effective date for CSA Group will be announced through CSA Informs or a CSA Group certication notice. UL Effective Date As of February 20, 2015 all produ

40、cts Listed by UL must comply with the requirements in this standard. A UL effective date is one established by Underwriters Laboratories Inc. and is not part of the ANSI approved standard. FEBRUARY 20, 2015 CSA C22.2 NO. 18.4-15 UL 2239 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO

41、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL Hardware for the Support of Conduit, Tubing, and Cable 1 Scope 1.1 These requirements cover hardware for the support of conduit, tubing, and cable, such as HANGERS, STAPLES, STRAPS, and similar devices for installation in accordance with the National Elec

42、trical Code, NFPA 70, and the Canadian Electrical Code (CEC), Part I. 1.2 These requirements also cover STANDOFFS for nonmetallic-sheathed cable, PROTECTOR PLATES, and PROTECTOR BUSHINGS. 1.3 These requirements do not cover hardware for use with surface raceway, wireway, or busway systems, sprinkler

43、 systems, and other piping systems used for re protection service, hardware for use with lighting xtures, or hardware for grounding and bonding applications. 1.4 These requirements do not cover: a) Hardware intended to support boxes (see UL 514A or CSA C22.2 No. 18.1), b) Conduit and cable ttings (s

44、ee UL 514B or CSA C22.2 No. 18.3), c) Reducing washers (see UL 514B or CSA C22.2 No. 18.3), d) Pulling grips for cable or cord (see UL 514B or CSA C22.2 No. 18.3), e) Cable ties (see UL 1565 or CSA C22.2 No. 18.5), or f) POSITIONING DEVICES (see UL 1565 or CSA C22.2 No. 18.5). 2 Normative References

45、 2.1 Products covered by this standard shall comply with the reference installation codes and standard 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

46、 all countries where it is intended to be used. 2.2 Where reference is made to any Standards, such reference shall be considered to refer to the latest editions and revisions thereto available at the time of printing, unless otherwise specied. CSA Group Standards C22.1-15 Canadian Electrical Code, P

47、art I CAN/CSA-C22.2 No. 0-10 General Requirements Canadian Electrical Code, Part II C22.2 No. 0.15-01 (R2012) Adhesive Labels CAN/CSA-C22.2 No. 0.17-00 (R2013) Evaluation of Properties of Polymeric Materials FEBRUARY 20, 2015 CSA C22.2 NO. 18.4-15 UL 2239 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR

48、FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL C22.2 No. 18.1-13 Metallic Outlet Boxes C22.2 No. 18.3-12 Conduit, Tubing, and Cable Fittings C22.2 No. 18.5-13 Positioning Devices UL Standards UL 94 Tests for Flammability of Plastic Materials for Parts in Devices and Appliances UL 51

49、4A Metallic Outlet Boxes UL 514B Conduit, Tubing, and Cable Fittings UL 746A Polymeric Materials Short Term Property Evaluations UL 969 Marking and Labeling Systems UL 1565 Positioning Devices ASTM 1 Standards ASTM B117-11 Standard Practice for Operating Salt Spray (Fog) Apparatus ASTM D1654-08 Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments ASTM F1137-11e1 Standard Specication for Phosphate/Oi