1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1008 Transfer Switch EquipmentUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REP
2、RODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Transfer Switch Equipment, UL 1008 Eighth Edition, Dated December 22, 2014 Summary of Topics This revision of ANSI/UL 1008 is being issued to incorporate the following changes: 1. Correction of Errors in Paragraphs 1.2,
3、3.13, 5.2.1.35, 5.2.1.36, 7.1.1, and G7.6, Table 2, and Annex B of UL 1008 The new/revised requirements are substantially in accordance with Proposal(s) on this subject dated May 22, 2015. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitte
4、d 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 limited to, the implied warranties of merchantability or tness for any
5、 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 use this Standard, even if UL or an authorized UL representative ha
6、s 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 Safety agree to defend, indemnify, and hold UL harmless from and a
7、gainst 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 system. OCTOBER 15, 2015 UL 1008 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZ
8、ED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL OCTOBER 15, 2015 UL 1008 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-672 ANCE Second Edit
9、ion CSA Group CSA C22.2 No. 178.1-14 Third Edition Underwriters Laboratories Inc. UL 1008 Eighth Edition Transfer Switch Equipment December 22, 2014 (Title Page Reprinted: October 15, 2015) ANSI/UL 1008-2015UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMI
10、SSION 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 proposals for revisions on any part of the standar
11、d 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 standard by means of a new edition or revised or addition
12、al 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 2014 ANCE Rights reserved in favor of ANCE. ISBN 978-1-77139-937-1 2014 CSA Group All rights reserved. No part of
13、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 committee. To submit a proposal for change, pleas
14、e 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 CSA Group Standards and related publicati
15、ons, visit 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
16、 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 Eighth Edition including revisions through October 15, 2015. The most recent designation of ANSI/UL 1008 as an American National Stan
17、dard (ANSI) occurred on October 15, 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 vi
18、a a Proposal 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
19、PREFACE 7 1 Scope .9 2 General Requirements 10 2.1 General 10 2.2 Kits, other than eld-wiring kits 11 2.3 Reference publications .11 2.4 Units of measurement 11 3 Denitions 11 4 Characteristics .13 4.1 Summary of characteristics .13 4.2 Ratings 14 5 Product Information 15 5.1 Data requirements .15 5
20、.2 Marking requirements 16 5.3 Instructions for installation, operation, and maintenance 28 6 Construction Requirements .28 6.1 Materials .28 6.2 Intended for service equipment 29 6.3 Clearance and creepage distances 29 6.4 Components 33 6.5 Enclosures .34 6.6 Connections for wiring systems .37 6.7
21、Corrosion protection .38 6.8 Insulating materials .38 6.9 Bases 39 6.10 Mounting of parts 39 6.11 Guarding and accessibility of live parts 40 6.12 Current-carrying parts .40 6.13 Field-wiring terminals .40 6.14 Internal wiring 43 6.15 Grounding and bonding .44 6.16 Ground-fault protection 44 6.17 Re
22、ceptacles .45 6.18 Wiring spaces 45 6.19 Transfer switches with integral inlets for portable generator connection .46 6.20 Inlets for generator connection .48 7 Performance Requirements .48 7.1 Operating mechanism 48 7.2 Temperature rise 52 7.3 Dielectric properties 52 7.4 Ability to make and break
23、under no-load, normal load, and overload conditions .52 7.5 Short-circuit tests .53 8 Service Equipment Requirements 53 8.1 Service equipment for use in Mexico and the United States 53 8.2 Service equipment for use in Canada 58 9 Test Requirements General .60 9.1 General 60 9.2 Performance 61 9.3 Ov
24、ervoltage condition 61 DECEMBER 22, 2014 NMX-J-672 ANCE CSA C22.2 NO. 178.1-14 UL 1008 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 9.4 Undervoltage condition .61 9.5 Operation on loss of supply voltage 62 9.6 Operation on reduction of s
25、upply voltage .62 9.7 Transfer on availability of alternative voltage or voltage-frequency .63 9.8 Temperature rise test 63 9.9 Dielectric voltage-withstand test .65 9.10 Overload test 66 9.11 Contact opening test 69 9.12 Endurance test .69 9.13 Short-circuit test 70 9.14 Dielectric voltage-withstan
26、d test (following short-circuit withstand or closing tests) 79 9.15 Short-time current rating test optional .79 9.16 Receptacle withstand test .82 9.17 Strength of insulating base and support tests 83 10 Test Requirements Routine Tests .83 10.1 Ground-fault protection 83 Tables 85 Annex A1 Normative
27、 references Annex A2 Informative references Annex B (informative) French translation of markings Annex C (informative) Spanish translation of markings Annex D (normative) Bypass/Isolation switches D1 Scope 115 D2 Construction General 115 D3 Performance General 116 D4 Normal Operation Test .116 D5 Ov
28、erload Test .116 D6 Temperature Test .116 D7 Endurance Test .117 D8 Dielectric Voltage-Withstand Test .117 D9 Short-Circuit Withstand Test 117 D10 Short-Time Current Rating Test (Optional) 117 D11 Short-Circuit Closing Test .117 D12 Dielectric Voltage-Withstand Test (following short-circuit withstan
29、d or closing tests) 117 D13 Rating Details 118 D14 Marking Details 118 Annex E (normative) Transfer switches for re pump service E1 Scope 119 E2 Construction General .119 DECEMBER 22, 2014 NMX-J-672 ANCE CSA C22.2 NO. 178.1-14 UL 1008 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
30、OR DISTRIBUTION WITHOUT PERMISSION FROM UL E3 Performance General 121 E4 Rating Details .121 E5 Marking Details 121 Annex F (Normative in Canada) (Informative in Mexico and the United States) Hybrid Transfer Switches F1 Scope 123 F2 Construction 123 F3 Performance 123 F4 Rating 124 F5 Marking 124 An
31、nex G (normative) Softload Transfer Switches G1 Scope .127 G2 General Requirements .127 G3 Denitions 127 G4 Characteristics 127 G5 Product Information 127 G5.1 Data Requirements .127 G5.2 Marking Requirements 127 G5.3 Instructions for Installation, Operation, and Maintenance .128 G6 Constructional R
32、equirements .128 G7 Performance Requirements 128 G8 Service Equipment 129 G9 Test Requirements 129 G10 Manufacturing and Production Tests 130 Annex H (Normative in Mexico and the United States) (Informative in Canada) Instrumentation and Calibration of High Capacity Circuits H1 General 131 H2 Test C
33、ircuit Calibration .131 H3 Direct Current .131 H4 Alternating Current 132 H5 Galvanometers 132 Annex I (informative) Sample Markings I1 Scope 137 I2 Example 1 .137 I3 Example 2 .137 I4 Example 3 .138 I5 Example 4 .139 I6 Example 5 .139 I7 Example 6 .140 I8 Example 7 .140 I9 Example 8 .141 DECEMBER 2
34、2, 2014 NMX-J-672 ANCE CSA C22.2 NO. 178.1-14 UL 1008 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex J (normative) Inlet Assemblies for Transfer Switch Equipment INTRODUCTION J1 Scope 142 J2 Components 142 J3 Units of Measurement 142
35、 J4 Undated References .143 CONSTRUCTION J5 General .143 J6 Enclosure .143 J7 Insulating Material .144 J8 Mounting of Parts 144 J9 Guarding and Accessibility of Live Parts 145 J10 Current Carrying Parts 145 J11 Field Wiring Connections 145 J12 Wiring .146 J12.1 Internal wiring 146 J12.2 Conductors p
36、assing through metal barriers 146 J13 Disconnect Switches 146 J13.1 General .146 J13.2 Disconnecting means .147 J14 Grounding and Bonding .147 J15 Ground-Fault Protection .148 J16 Spacings 148 J17 Wiring Space .148 PERFORMANCE J18 Inlet Assemblies 148 J19 Temperature Test .148 J20 Dielectric Voltage
37、-Withstand Test .149 J21 Short Circuit Withstand Test .149 J22 Dielectric Voltage-Withstand Test (Repeated) 152 J23 Spring-Closing Cycling Test .152 J24 Gasket Tests .152 J25 Routine Tests Ground-Fault Protection 152 RATINGS J26 General .153 MARKINGS J27 General .153 J28 Permanence of Marking .154 I
38、NSTALLATION J29 Installation Test Procedures 154 DECEMBER 22, 2014 NMX-J-672 ANCE CSA C22.2 NO. 178.1-14 UL 1008 6UL 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 transfer sw
39、itch equipment. It is the second edition of NMX-J-672-ANCE, the third edition of CSA C22.2 No. 178.1, and the eighth edition of UL 1008. This edition of NMX-J-672-ANCE supersedes the previous edition published on July 6, 2012. This edition of CSA C22.2 No. 178.1 supersedes the previous edition publi
40、shed in 2012. This edition of UL 1008 supersedes the previous edition published on July 6, 2012. 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 Harmonizat
41、ion Subcommittee for Transfer Switches and the Council of the Harmonization of Electrotechnical Standards for 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
42、 Mexican Standard was developed by the CT CDI Control y Distribucin Industrial from the Comit de Normalizacin de la Asociacin de Normalizacin y Certicacin, A.C., CONANCE, with the collaboration of the transfer switch manufacturers and users. This standard was reviewed by the CSA Subcommittee on Auto
43、matic Transfer Switches, under the jurisdiction of the CSA Technical Committee on Industrial 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 Nationa
44、l 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 application of this standard is stated in its scop
45、e, 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 uses the IEC format, but is not based on, nor is it to be considered equivalent to, an IEC standard. This standard is
46、 published as an equivalent standard for ANCE, CSA Group, 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 and those recognized as being in accordance
47、 with NAFTA Article 905, for example, because of fundamental, climatic, geographical, technological or infrastructural factors, scientic justication, or the level of protection that the country considers appropriate. Presentation is to be word for word except for editorial changes. Reasons for diffe
48、rences from IEC There is no corresponding IEC standard. DECEMBER 22, 2014 NMX-J-672 ANCE CSA C22.2 NO. 178.1-14 UL 1008 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Interpretations The interpretation by the standards development organiza
49、tion 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 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. OCTOBER 15, 2015 NMX-J-672
