1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 514A Metallic Outlet BoxesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODU
2、CTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Metallic Outlet Boxes, UL 514A Eleventh Edition, Dated February 1, 2013 Summary of Topics This revision to UL 514A is being issued to include the following: Clarication for the Evaluation of Covers. Clarication of Conduit Bo
3、dies, Including New and Deleted Requirements. Revision to the Type of Vibrator Referenced for Testing in Clause 12.18.7. Correction of a Dimension in Clause 13.11. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. T
4、he new and revised requirements are substantially in accordance with Proposal(s) on this subject dated January 23, 2015 and April 17, 2015. 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, mechanica
5、l photocopying, recording, or otherwise without prior permission of UL. 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 s
6、pecial, incidental, consequential, indirect or similar damages, including 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.
7、 In no event shall ULs liability for any damage ever exceed the price paid 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, clai
8、m, or judgment (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronic Standard on the purchasers computer system. JULY 6, 2015 UL 514A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT P
9、ERMISSION FROM UL JULY 6, 2015 UL 514A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Association of Standardization and Certication NMX-J-023/1-ANCE Third Edition CSA Group CSA-C22.2 No. 18.1-13 Second Edition Under
10、writers Laboratories Inc. UL 514A Eleventh Edition Metallic Outlet Boxes February 1, 2013 ANSI/UL 514A-2015UL 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 Standa
11、rdization and Certication (ANCE), 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 ANCE, CSA Group, or UL at any time. Revisions to this standard will be made on
12、ly after processing according to the standards development procedures of ANCE, CSA Group, and UL. CSA 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 o
13、f the standard bearing the same date of issue as the CSA Group and UL pages. Copyright 2015 ANCE Rights reserved in favor of ANCE ISBN 978-1-55491-946-8 2015 CSA Group All rights reserved. No part of this publication may be reproduced in any form whatsoever without the prior permission of the publis
14、her. 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 the following information to inquirescsagroup.org and include Proposal for change in the subj
15、ect 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, visit CSA Groups Online Store at shop.csa.ca or call toll-free 1-800-463-6727 or 416-747-4044.
16、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 copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusiv
17、e property of UL. This ANSI/UL Standard for Safety consists of the Eleventh Edition including revisions through July 6, 2015. The most recent designation of ANSI/UL 514A as an American National Standard (ANSI) occurred on July 6, 2015. ANSI approval for a standard does not include the Cover Page, Tr
18、ansmittal 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 Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/.UL COPYRIG
19、HTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL To purchase UL Standards, visit Comm 2000 at http:/m- help/how_to_order.aspx or call toll-free 1-888-853-3503.UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMI
20、SSION FROM UL FEBRUARY 1, 2013 NMX-J-023/1-ANCE CSA-C22.2 NO. 18.1-13 UL 514A 4 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .8 1 Scope 10 2 Normative references .10 3 Denitions 13 4 General requiremen
21、ts 15 5 Marking 16 5.1 General 16 5.2 Box CLAMPS 17 5.3 Grounding screw 18 5.4 Closures for CONCRETE BOXES .19 5.5 Box volume .19 5.6 Specic conditions .19 5.7 Ceiling-suspended fan support 20 5.8 Wet location 20 5.9 Damp location boxes 20 5.10 Other application environments 21 5.11 Fixture/luminair
22、e support boxes 21 5.12 FLOOR BOXES 22 5.13 BAR HANGERS 22 5.14 Marine boxes 22 5.15 ADJUSTABLE MUD RINGS .22 5.16 ADJUSTABLE SLEEVE EXTENDERS .23 6 Instructions 23 6.1 Fixture/luminaire support boxes for use in a nished structure (old work) .23 6.2 FLOOR BOXES, FLOOR-MOUNTED ENCLOSURES, and POKE-TH
23、ROUGH FLOOR FITTINGS .23 6.3 Ceiling-suspended fan support boxes 24 6.4 Wet location boxes 24 6.5 ADJUSTABLE MUD RING with adjustable sleeve not assembled to the mud ring at the factory .24 7 Dimensions and volume 24 7.1 Sheet steel .24 7.2 Sheet aluminum .25 7.3 Cast metal boxes 25 7.4 Cast metal c
24、overs .25 7.5 Box width 25 7.6 Internal volume 26 7.7 Cover mounting hole-spacing .26 7.8 Measurement of CONDUIT BODY dimensions (Mexico and United States only) .26 8 Provisions for grounding 26 8.1 Connection means 26 8.2 Screws for gangable (sectional) boxes .30 9 Construction requirements 30 9.1
25、Corrosion protection .30 9.2 Knockouts 30 9.3 PARTITIONS .32 9.4 Openings for rigid conduit, electrical metallic tubing, and conduit hubs .32 9.5 Box brackets and supports .35 9.6 Boxes for UNFINISHED STRUCTURES (NEW WORK) 37 9.7 Boxes for FINISHED STRUCTURES (OLD WORK) 37 9.8 Device attachment mean
26、s 38 JULY 6, 2015 NMX-J-023/1-ANCE CSA-C22.2 NO. 18.1-13 UL 514A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.9 Mounting brackets .38 9.10 Supports for use with metal studs 38 9.11 Luminaire studs 39 9.12 Ceiling-suspended fan support
27、.39 9.13 Securement of wiring systems at openings 40 9.14 Closure of openings in pryouts .40 9.15 BAR HANGERS: ceiling installations 40 9.16 Assembly screws .40 9.17 CLAMPS for cable, conduit, and tubing 40 9.18 ADJUSTABLE MUD RINGS .41 9.19 ADJUSTABLE SLEEVE EXTENDERS .42 10 Resistance to ingress o
28、f solid objects .42 10.1 Closure of openings 42 10.2 Boxes for use in concrete slabs 43 10.3 Area of open holes .43 10.4 Holes in CONDUIT BODIES 44 10.5 Pryout holes and slots 44 10.6 Covers 44 11 Resistance to ingress of water in marine use and other wet locations .45 11.1 General .45 11.2 Openings
29、 for conduit .45 11.3 Gaskets .45 11.4 Boxes for marine use .45 11.5 Wet and damp locations 46 12 Product testing .46 12.1 Volume measurement of boxes and RAISED COVERS 46 12.2 Strength of fastening of boxes .47 12.3 Boxes with attached device-mounting straps .47 12.4 Threaded holes for ground screw
30、s .48 12.5 Ceiling-suspended fan support .48 12.6 Strength of knockouts .49 12.7 Flat areas surrounding knockouts 50 12.8 Nonmetallic plug or other nonmetallic closure 50 12.9 PARTITIONS 51 12.10 CLAMPS for cable, conduit, tubing, and exible cord .52 12.11 Boxes and box supports for UNFINISHED STRUC
31、TURES (NEW WORK) 52 12.12 Supports for use with metal studs .53 12.13 Boxes intended to be installed in a FINISHED STRUCTURE (OLD WORK) .53 12.14 Boxes intended to support a xture/luminaire or other product 54 12.15 Polymeric supporting means 55 12.16 FLOOR BOXES, FLOOR-MOUNTED ENCLOSURES, POKE-THRO
32、UGH FLOOR FITTINGS, and FLOOR BOX COVERS .55 12.17 Fixture/luminaire studs: studs and attachment to a box or cover 58 12.18 Concrete-tightness test 59 12.19 Marine use .60 12.20 Resistance to ingress of water 62 12.21 Permanence of marking 63 12.22 Other application environments .64 12.23 ADJUSTABLE
33、 MUD RINGS 64 13 Corrosion protection .70 14 Tests on alternate corrosion protection systems 71 FEBRUARY 1, 2013 NMX-J-023/1-ANCE CSA-C22.2 NO. 18.1-13 UL 514A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL ANNEX A (normative) Component St
34、andards (See Clause 4.1.) ANNEX B (normative) Tests on Alternate Corrosion Protection Systems (See Clause 14.1.) B.1 General .97 B.2 Air-oven conditioning exposure 97 B.3 Resistance to salt-spray (fog) test 97 B.4 Resistance to moist carbon dioxide-sulfur dioxide-air test .98 B.5 Resistance to ultra
35、violet light and water test .99 B.6 Flammability .99 FEBRUARY 1, 2013 NMX-J-023/1-ANCE CSA-C22.2 NO. 18.1-13 UL 514A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This is the harmonized ANCE, CSA Group, and UL standard for Metalli
36、c Outlet Boxes. It is the third edition of NMX-J-023/1-ANCE, the second edition of CSA C22.2 No. 18.1, and the eleventh edition of UL 514A. This harmonized standard has been jointly revised on July 6, 2015. For this purpose, CSA Group and UL are issuing revision pages dated July 6, 2015, and ANCE is
37、 issuing a new edition dated July 6, 2015. This harmonized standard was prepared by the Association of Standardization and Certication (ANCE), CSA Group, and Underwriters Laboratories Inc. (UL). The efforts and support of the Technical Harmonization Committee for Switch and Outlet Boxes, of the Coun
38、cil on the Harmonization of Electrotechnical 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. The present Mexican standard was developed by the CT committee
39、named from the Comite de Normalizacion de la Asociacion de Normalizacion y Certicacion, A.C., CONANCE, with the collaboration of the type of manufacture manufacturers and users. This standard was reviewed by the CSA Integrated Committee on Wiring Devices, under the jurisdiction of the CSA Technical
40、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) as an American National Standard. Applicatio
41、n of 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 responsibility of the user
42、s 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 ANCE, CSA Group, and UL. An equiv
43、alent 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 fundamental climat
44、ic, 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 Technical Harmonization Committee identied the follow
45、ing IEC standard within the scope of this standard: IEC 60670 (1989-11), General requirements for enclosures for accessories for household and similar xed electrical installations and Amendment No. 1 (1994-01). It was further recognized that signicant revision of this IEC standard is in process, wit
46、h participation by the IEC National Committees in each of the three countries that are party to this standard. JULY 6, 2015 NMX-J-023/1-ANCE CSA-C22.2 NO. 18.1-13 UL 514A 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL The THC determined th
47、at the safe use of electrical boxes is critically dependent on the design and performance of the system 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 elec
48、trical boxes with those presently addressed in the known IEC standards. The THC agreed such future investigation might be facilitated by completion of harmonization of the North American standards for electrical boxes. Interpretations The interpretation by the standards development organization of a
49、n 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 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. ANCE Effective Date The effective date for ANCE will be announced
