1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 514B Conduit, Tubing, and Cable FittingsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR F
2、URTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Conduit, Tubing, and Cable Fittings, UL 514B Sixth Edition, Dated July 13, 2012 Summary of Topics The revisions dated November 21, 2014 are being issued to incorporate new and revised requirements as follows an
3、d to reect the latest ANSI approval date for UL 514B: 1. Revision And Addition Of Requirements Specic To Conduit Bodies To Distinguish Between Requirements Applicable To Conduit Bodies For Use With Rigid PVC Conduit And Requirements Applicable To Conduit Bodies For Use With Rigid Metal Conduit, Elec
4、trical Metallic Tubing and Intermediate Metal Conduit 2. Revision And Addition Of Construction And Marking Requirements Specic To The Dimensional Criteria For Conduit Bodies To Align With Changes To The 2014 National Electrical Code 3. Revision Of Requirements For Conduit Bodies To Clarify That The
5、Cross-Sectional Area Of A Conduit Body Is Internal To The Body 4. Revision And Deletion Of Requirements For Thread Count For The Connection Of Conduit As A Result Of The Introduction Of Thread Gaging Requirements 5. Addition And Revision Of Construction And Test Requirements To Clarify Existing Requ
6、irements Specic To Reducing Washers For Use In Wet Locations or Liquid-Tight Applications 6. Addition Of Clause 5.19.4 To Clarify Construction And Test Requirements For Sealing-Type Conduit Locknuts For Use In Wet Locations Or Liquid-Tight Applications 7. Addition Of Construction And Test Requiremen
7、ts Applicable To Sealing Rings 8. Addition Of Requirements To Specify Tools Required For The Assembly Of Fitting Samples To Be Tested 9. Revision To Clause 8.5.3 To Allow The Use Of Demineralized Water As A Substitute For Distilled Water For The Metallic Coating Thickness Test 10. Revision To Clause
8、 8.5.4 To Align The Test Method For The Metallic Coatings Thickness Test With Similar Tests In Other UL Standards 11. Revision To Clause 8.7.4 To Align The Test Method For The Wet Locations Test With Similar Tests In Other UL Standards 12. Revision To Table 16 To Specify Thickness Requirements For P
9、owdered Iron And Steel Material The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated August 1, 2014. For further information regarding the Summary of Requirements, please visit https:/ NOVEMBER 21, 2014 UL 514B tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED
10、FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 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.
11、UL provides this Standard 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, includin
12、g loss of prots, lost 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 pa
13、id for this Standard, 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
14、error or deviation 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 indicat
15、ed in the preface. 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. NOVEMBER 21, 2014 UL 514B tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRI
16、BUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-017-ANCE Third Edition CSA Group CSA-C22.2 No. 18.3-12 Second Edition Underwriters Laboratories Inc. UL 514B Sixth Edition Conduit, Tubing, and Cable Fittings July 13, 2012 (Title Page Reprinted: November 21, 2014
17、) ANSI/UL 514B-2014UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), Canadian Standards Association (CSA Group), and Underw
18、riters Laboratories Incorporated (UL). Comments or proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of ANCE, CSA Group, and UL. C
19、SA Group and UL will issue revisions to this Standard by means of a new edition or revised or additional pages bearing their date of issue. ANCE will incorporate the same revisions into a new edition of the standard bearing the same date of issue. Copyright 2014 ANCE Rights reserved in favor of ANCE
20、. ISBN 978-1-55491-745-7 2012 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publisher. CSA Standards are subject to periodic review, and suggestions for their improvement will be referred to the appropriate com
21、mittee. To submit a proposal for change to CSA Standards, please send the following information to inquirescsa.ca 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 chan
22、ge. To purchase CSA Standards and related publications, visit CSAs Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2014 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be
23、 altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. The most recent designation of ANSI/UL 514B as an American National Standard (ANSI) occurred on November 21, 2014. The ANSI approval for
24、this standard does not include the Cover Page, Transmittal Pages, Title Page, Preface Page or Superseded Requirements Pages. The Department of Defense (DoD) has adopted UL 514B on June 11, 1992. The publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption T
25、he publication of revised pages or a new edition of this Standard will not invalidate the DoD adoption. 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 Proposal Request in ULs On-Line Collaborative Standards Deve
26、lopment 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 .6 1 Scope .8 2 Normative References .8 3 Denitions 11 4
27、 General requirements 13 5 Construction .14 5.1 Metallic materials 14 5.2 Nonmetallic materials 15 5.3 Mechanical protection 17 5.4 Throats and end stops for FITTINGS .17 5.5 Throats and end stops for THREADLESS FITTINGS 19 5.6 Screws .21 5.7 CONDUIT BODIES(Mexico and US only) 21 5.8 Threads for FIT
28、TINGS and conduit entries 24 5.9 Electrical continuity of FITTINGS, enclosures, cables, and raceways .25 5.10 Offset and ANGLE FITTINGS .25 5.11 Luminaire studs 26 5.12 FITTINGS and BUSHINGS for armored cable .26 5.13 FITTINGS for nonmetallic-sheathed cable .26 5.14 FITTINGS for mineral-insulated ca
29、ble 27 5.15 NIPPLES 27 5.16 SERVICE-ENTRANCE HEADS .27 5.17 Pulling, strain-relief, and mesh grips 28 5.18 Reducing washers 28 5.19 CONDUIT LOCKNUTS 28 5.20 BUSHINGS for metal studs 28A 5.21 SEALING RINGS and sealing locknuts .28A 6 General conditions for tests .28A 6.1 Method of assembly 28A 6.2 As
30、sembly torque 29 6.3 Sample preparation 29 6.4 Environmental conditions .30 6.5 SERVICE-ENTRANCE HEADS 31 7 Marking .31 7.1 General 31 7.2 Other environments 32 7.3 FITTINGS for rigid metal conduit, electrical metallic tubing (EMT), and intermediate metal conduit (IMC) .33 7.4 FITTINGS for nonmetall
31、ic-sheathed cable 33 7.5 INSULATING BUSHINGS .33 7.6 BUSHINGS for armored cable 34 7.7 Mesh grips .34 7.8 Tray-cable FITTINGS .34 7.9 FLEXIBLE CORD FITTINGS 34 7.10 CONDUIT BODIES 35 7.11 FITTINGS for threaded HUBS 36 7.12 FITTINGS for armored cable, aluminum-sheathed cable, and metal-clad cable .36
32、 7.13 FITTINGS for service-entrance cable .37 7.14 FITTINGS for liquid-tight exible metal conduit .37 NOVEMBER 21, 2014 NMX-J-017-ANCE CSA-C22.2 NO. 18.3-12 UL 514B 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 7.15 FITTINGS for liquid-ti
33、ght exible nonmetallic conduit 37 7.16 FITTINGS for mineral-insulated cable .38 7.17 EXPANSION, EXPANSION-DEFLECTION,o rDEFLECTION FITTINGS .38 7.18 BUSHINGS for exible metal conduit, metal-clad cable, and Type ACG90 and ACGWU90 cable FITTINGS .38 7.19 FITTINGS with an alternate corrosion-resistant
34、coating 38 8 Performance 38 8.1 General notes on tests .38 8.2 Nonmetallic materials ammability test .39 8.3 Elastomeric materials hardness test .41 8.4 Wire pull test 41 8.5 Metallic-coating thickness test .42 8.6 Tests on alternate corrosion protection systems .43 8.7 Wet locations test .43 8.8 Co
35、ncrete-tightness test .44 8.9 Resistance test .45 8.10 Current test 45 8.11 THREADLESS FITTINGS for non-exible metallic raceways 47 8.12 LIQUID-TIGHT FITTINGS for rigid metal conduit .50 8.13 Threaded FITTINGS for rigid metal conduit and intermediate metal conduit (IMC) .50 8.14 FITTINGS for exible
36、metal conduit (FMC) .51 8.15 FITTINGS for armored cable (AC) .53 8.16 BUSHINGS for armored cable 54 8.17 FITTINGS for liquid-tight exible metal conduit .55 8.18 FITTINGS for exible metallic tubing 58 8.19 FITTINGS for liquid-tight exible nonmetallic conduit 60 8.20 FITTINGS for exible nonmetallic tu
37、bing .61 8.21 Polyvinyl chloride (PVC) CONDUIT BODIES 62 8.22 FITTINGS for metal-clad (MC) cable, Type ACG90 cable, and Type ACGWU90 cable . . .68 8.23 FITTINGS for aluminum-sheathed cable (ALS) 70 8.24 FITTINGS for mineral-insulated (MI) cable .71 8.25 FITTINGS and clamps for nonmetallic-sheathed c
38、able (NM) 74 8.26 FITTINGS for service-entrance cable 76 8.27 FITTINGS for exible cord .77 8.28 FITTINGS for tray cable (TC) .81 8.29 BUSHINGS, INSULATING BUSHINGS, and FITTINGS with throat liners .84 8.30 Nonmetallic SERVICE-ENTRANCE HEADS 85 8.31 EXPANSION, EXPANSION-DEFLECTION,o rDEFLECTION FITTI
39、NGS .89 8.32 Gaskets expanded closed cell materials .92 8.33 Mesh grips 93 8.34 Reducing washers tests .94 8.35 BUSHINGS for metal studs .94 8.36 Permanence of markings test 95 8.37 Internal thread gauging test .96 8.38 SEALING FITTING tests 96 8.39 SEALING RING tests 98A NOVEMBER 21, 2014 NMX-J-017
40、-ANCE CSA-C22.2 NO. 18.3-12 UL 514B 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex A (Normative) Component Standards (See Clause 4.1.) Annex B (Normative) Ultraviolet Light and Water Test (See Clause 8.27.7.4.) B.1 Apparatus 138 B.2
41、Method 138 NOVEMBER 21, 2014 NMX-J-017-ANCE CSA-C22.2 NO. 18.3-12 UL 514B 4AUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL NOVEMBER 21, 2014 NMX-J-017-ANCE CSA-C22.2 NO. 18.3-12 UL 514B 4B No Text on This PageUL COPYRIGHTED MATERIAL NOT AUT
42、HORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex C (Informative) Armored Cable BUSHING Dimensions (See Table 13.) Annex A (Normative) Component Standards JULY 13, 2012 NMX-J-017-ANCE CSA-C22.2 NO. 18.3-12 UL 514B 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER RE
43、PRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA, and UL 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
44、. 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 was prepared by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (CSA), and Underwriters La
45、boratories Inc. (UL). 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
46、 use for conformity assessment within the stated scope of the standard. 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 Requ
47、irements 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) as an American National Standard. Where reference is made to a specic number of samples to be tested, the specied number
48、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
49、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, and 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
