1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 773A Nonindustrial Photoelectric Switches for Lighting Control STANDARD FOR SAFETYUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL
2、 COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Nonindustrial Photoelectric Switches for Lighting Control, UL 773A Sixth Edition, Dated January 19, 2016 Summary of Topics The six edition of the Standard for Nonindust
3、rial Photoelectric Switches for Lighting Control, UL 773A, incorporates requirements based on Canadian and US requirements. The new requirements are substantially in accordance with Proposal(s) on this subject dated November 21, 2014 and October 16, 2015. All rights reserved. No part of this publica
4、tion 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 Standard as is without warranty of any kind, either expressed or implied, including but not lim
5、ited 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, lost savings, loss of data, or any other damages arising out of the use of or the inability to
6、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 Standard, regardless of the form of the claim. Users of the electronic versions of ULs Standards for
7、 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 introduced while purchaser is storing an electronic Standard on the purchasers computer syste
8、m. JANUARY 19, 2016 UL 773A tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JANUARY 19, 2016 UL 773A tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Associ
9、ation of Standardization and Certication NMX-J715ANCE First Edition CSA Group CSA C22.2 No. 28416 First Edition Underwriters Laboratories Inc. UL 773A Sixth Edition Nonindustrial Photoelectric Switches for Lighting Control January 19, 2016 ANSI/UL 773A-2016UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR
10、FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by the Association of Standardization and Certication (ANCE), the Canadian Standards Association (operating as “CSA Group”), and Underwriters Laboratories Inc. (UL). Comments or
11、proposals for revisions on any part of the standard may be submitted to ANCE, CSA Group, or UL at anytime. Revisions to this standard will be made only after processing according to the standards development procedures of ANCE, CSA Group, and UL. CSA Group and UL will issue revisions to this standar
12、d 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 as the CSA Group and UL pages. Copyright 2016 Rights reserved in favor of ANCE. ISBN 9781771397322 2016 C
13、SA Group All rights reserved. No part of this publication 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 committe
14、e. To submit a proposal for change, please send the 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
15、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. Copyright 2016 Underwriters Laboratories Inc. ULs Standards for Safety are copyrighted by UL. Neither a printed nor electronic copy of a Standard should be alt
16、ered 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. This ANSI/UL Standard for Safety consists of the Sixth Edition including revisions through January 19, 2016. The most recent designation of A
17、NSI/UL 773A as an American National Standard (ANSI) occurred on January 19, 2016. ANSI approval for a standard does not include the Cover Page, Transmittal Pages, Title Page (front and back), or the Preface. The National Difference Page and IEC Foreword are also excluded from the ANSI approval of IE
18、C-based standards. Any other portions of this ANSI/UL standard that were not processed in accordance with ANSI/UL requirements are noted at the beginning of the impacted sections. The Department of Defense (DoD) has adopted UL 773A on June 13, 1989. The publication of revised pages or a new edition
19、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 Development System (CSDS) at http:/.UL COPYRIGHTED MA
20、TERIAL 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 PERMISSION F
21、ROM UL JANUARY 19, 2016 NMX-J715ANCE CSA C22.2 NO. 28416 UL 773A 4 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PREFACE 8 INTRODUCTION 1 Scope 10 2 General .10 2.1 Components 10 2.2 Units of measurement 11 2.3
22、 Undated references 11 2.4 Normative references 11 2.5 Denitions 13 2.6 Suitability for control of loads .13 2.7 Grounding/Bonding Conductor 13 CONSTRUCTION 3 Enclosures 14 3.1 General 14 3.2 Metal Enclosures 14 3.3 Polymeric enclosure .16 3.4 Snap-on covers .17 4 Accessibility of Uninsulated Live P
23、arts 17 5 Openings in Enclosure .20 5.7 Knockouts 22 6 Provision for Mounting 23 7 Protection Against Corrosion 23 8 Supply Connections 24 8.1 Permanently connected units .24 8.2 Outlet-box-mounted units .26 8.3 Cord-connected or direct plug-in units 27 8.4 Receptacles Incorporated in Equipment 28 8
24、.5 Direct Plug-in .28 8.6 Strain relief .30 8.7 Bushings .30 9 Bonding/Grounding .30 9.7 Bonding/Grounding lead requirements .32 9.8 Bonding/Grounding lead securement 33 10 Current-Carrying Parts 33 11 Internal Wiring 33 12 Spacings 33 13 Alternate Spacings Clearances and Creepage Distances 34 13.4
25、Limited power point determination 34 13.5 Printed-wiring board abnormal operation test 37 14 Bonding of Internal Parts for Bonding/Grounding .39 14.1 General .39 14.2 Construction and connection .41 15 Polymeric Materials .42 16 Coil Windings 44 17 Air-Gap Switches .44 JANUARY 19, 2016 NMX-J715ANCE
26、CSA C22.2 NO. 28416 UL 773A 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PERFORMANCE 18 General 44 19 Overload and Endurance Testing - General .45 19.1 General .45 19.2 Air-gap switch used in series with solid state switching devices 47
27、20 Overload Test 47 21 Endurance Test 49 22 Temperature Test .52 23 Dielectric Voltage-Withstand Test .55 24 Operation Test .56 25 Abnormal Switching Test 56 26 Limited Short-Circuit Test for Solid-State Switching Control 57 27 Rain Test 58 28 Exposure to Humid Atmospheres .61 29 Permanence of Marki
28、ng Tests 61 29.1 Requirements for pressure sensitive labels 61 29.2 Oven-aging test 62 29.3 Immersion test .62 29.4 Standard-atmosphere test .62 29.5 Unusual-conditions exposure test 62 30 Bonding/Grounding Connection Tests .62 30.1 Creep and mold stress relief .62 30.2 Overcurrent tests .63 30.3 Im
29、pedance test 63 31 Leakage Current Test .64 32 Leakage Current Following Humidity Conditioning Test 67 33 Power Supply Abnormal Tests .67 33.1 General .67 33.2 Output loading .68 33.3 Power supply burnout .69 33.4 Power supply abnormal test .70 34 Component Breakdown Test .70 34.1 Effects on equipme
30、nt .70 34.2 Effects on controlled load .71 34.3 Component evaluation 71 35 Strain Relief and Lead Securement Tests 71 35.1 Strain relief cord-connected device .71 35.2 Lead securement - for self enclosed devices with nipples .71 35.3 Lead securement outlet box mounted devices 71 36 Knockout Test 71
31、37 Mechanical integrity .71 37.1 Impact test for outdoor devices 71 37.2 Crush test .72 38 Conduit Connection to Enclosure Tests 72 38.1 Polymeric Enclosures .72 38.2 Metallic enclosure threaded opening test 73 38.3 Metallic enclosure conduit hub test .74 39 Snap-On Cover Test 74 40 Tests on 120V De
32、vices with Varistors .74 40.3 Test requirements 74 MANUFACTURING AND PRODUCTION TESTS JANUARY 19, 2016 NMX-J715ANCE CSA C22.2 NO. 28416 UL 773A 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 41 Dielectric Voltage-Withstand Test .75 RATINGS
33、, MARKINGS AND INSTRUCTIONS 42 Details .77 43 Instructions 83 44 Marking requirements for minimum outlet box volume .83 JANUARY 19, 2016 NMX-J715ANCE CSA C22.2 NO. 28416 UL 773A 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL PREFACE This i
34、s the harmonized ANCE, CSA Group, and UL standard for Nonindustrial Photoelectric Switches for Lighting Control. It is the rst edition of NMX-J-715-ANCE, the rst edition of CSA-C22.2 No. 28416, and the sixth edition of UL 773A. This edition of UL 773A supersedes the previous edition published on Feb
35、ruary 10, 2006. 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 Subcommittee, on the Harmonization of Electrotechnical Standards of the Natio
36、ns of the Americas (CANENA), are gratefully acknowledged. The CSA Group standard also replaces the following Technical Information Letters (T.I.L.), for products covered in this Standard: TIL No. A-15 Photo-electric switches This standard is considered suitable for use for conformity assessment with
37、in the stated scope of the standard. The present Mexican standard was developed by the CT 23 Electrical Accesries from the Comite de Normalizacion de la Asociacion de Normalizacion y Certicacion, A.C., CONANCE, with the collaboration of the Electrical of manufactures, manufacturers and users. This s
38、tandard was reviewed by the CSA Integrated Committee on Wiring Devices, 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 standar
39、d has been approved by the American National Standards Institute (ANSI) as an American National Standard. Application 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 applica
40、tion 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 standard is published as an identical standard for ANCE, CSA Group and UL. An ident
41、ical standard is a standard that is exactly the same in technical content except for national differences resulting from conicts in codes and governmental regulations. Presentation is word for word except for editorial changes. Reasons for Differences From IEC There is no corresponding IEC standard.
42、 JANUARY 19, 2016 NMX-J715ANCE CSA C22.2 NO. 28416 UL 773A 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standards development organization of an identical or equivalent standard is based on the l
43、iteral 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 organi
44、zations to more accurately reect the intent. JANUARY 19, 2016 NMX-J715ANCE CSA C22.2 NO. 28416 UL 773A 9UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 Requirements contained in this Standard cover controls of the li
45、ght-sensitive or presence-sensitive types, or both; for indoor or outdoor service; intended for the control of indoor or outdoor loads up to a maximum of 20 A and maximum 347 V; intended for installations on 50 Hz or 60 HZ systems or DC up to 60 V (for US); and DC up to 42.4 V (for Canada); and inte
46、nded to be installed in accordance with the National Electrical Code (NEC), NFPA 70, the Canadian Electrical Code (CE Code) Part I, CSA C22.2 No. 0, and NOM 001 SEDE. 1.2 These requirements do not cover controls intended to be used under the following conditions: a) Devices that are locking type, us
47、ed for area or roadway lighting xtures; b) Devices that monitor or control safety critical loads or personal protection circuits; c) Devices intended to be installed in areas designated hazardous locations; d) Devices intended to be installed for manufacturing process control. 2 General 2.1 Componen
48、ts 2.1.1 A component of a product covered by this standard shall comply with the requirements for that component. A component shall be used in accordance with its rating established for the intended conditions of use. 2.1.2 A component is not required to comply with a specic requirement that: a) Inv
49、olves a feature or characteristic not required in the application of the component in the product covered by this standard, or b) Is superseded by a requirement in this standard. 2.1.3 Specic components are incomplete in construction features or restricted in performance capabilities. Such components are intended for use only under limited conditions, such as certain temperatures not exceeding specied limits, and shall be used only unde
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