UL 6142-2012 UL Standard for Safety Small Wind Turbine Systems (First Edition Reprint with revisions through and including February 22 2018)《小型风力发电机系统的安全性标准》.pdf

1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL 6142Small Wind Turbine SystemsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPR

2、ODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL Standard for Safety for Small Wind Turbine Systems, UL 6142First Edition, Dated November 30, 2012Summary of TopicsNew First Edition of UL 6142, Standard for Safety for Small Wind Turbine Systems, coveringsmall wind turbine systems and electrical

3、subassemblies intended for use in stand-alone (notgrid-connected) or utility interactive applications.The requirements are substantially in accordance with Proposal(s) on this subject dated September 16,2011 and December 2, 2011All rights reserved. No part of this publication may be reproduced, stor

4、ed in a retrieval system, ortransmitted in any form by any means, electronic, mechanical photocopying, recording, or otherwisewithout prior permission of UL.UL provides this Standard as is without warranty of any kind, either expressed or implied, including butnot limited to, the implied warranties

5、of merchantability or fitness for any purpose.In no event will UL be liable for any special, incidental, consequential, indirect or similar damages,including loss of profits, lost savings, loss of data, or any other damages arising out of the use of or theinability to use this Standard, even if UL o

6、r an authorized UL representative has been advised of thepossibility of such damage. In no event shall ULs liability for any damage ever exceed the price paid forthis Standard, regardless of the form of the claim.Users of the electronic versions of ULs Standards for Safety agree to defend, indemnify

7、, and hold ULharmless from and against any loss, expense, liability, damage, claim, or judgment (including reasonableattorneys fees) resulting from any error or deviation introduced while purchaser is storing an electronicStandard on the purchasers computer system.The requirements in this Standard a

8、re now in effect, except for those paragraphs, sections, tables, figures,and/or other elements of the Standard having future effective dates as indicated in the preface. The priortext for requirements that have been revised and that have a future effective date are located after theStandard, and are

9、 preceded by a SUPERSEDED REQUIREMENTS notice.The following table lists the future effective dates with the corresponding reference.NOVEMBER 30, 2012 UL 6142 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULFuture Effective Date ReferenceJa

10、nuary 2, 2013 Entire StandardNOVEMBER 30, 2012 UL 6142tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULAmerican Wind Energy Association AWEA 6142 First Edition Underwriters Laboratories Inc. UL 6142 First Edition Small Wind Turbine Systems

11、November 30, 2012 ANSI/UL 6142-2012UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULCommitment for Amendments This standard is issued jointly by the American Wind Energy Association (AWEA) and Underwriters Laboratories Inc. (UL). Comments or p

12、roposals for revisions on any part of the standard may be submitted to UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of UL. AWEA and UL will issue revisions to this standard by means of revised or additional pages bear

13、ing their date of issue. Copyright 2012 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 rem

14、ain the sole and exclusive property of UL. This ANSI/UL Standard for Safety consists of the First Edition. The most recent designation of ANSI/UL 6142 as an American National Standard (ANSI) occurred on November 30, 2012. ANSI approval for a standard does not include the Cover Page, Transmittal Page

15、s, 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:/. To purchase UL Standard

16、s, 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 FROM ULCONTENTSPreface .5INTRODUCTION1 Scope .62 General 72.1 Components .72.2 Units of Measurement .72.3 Undated

17、 References 83 Glossary .8CONSTRUCTION4 Special Components and Subassemblies of Wind Turbines .104.1 General 104.2 Wiring 104.3 Splices and Connections in Power Cables 124.4 Cable drip loop 124.5 Bus bars .134.6 Switchgear .154.7 Panelboards 164.8 Transformers .164.9 Hub174.10 Converter/Inverter 174

18、.11 Lightning protection systems .174.12 Slip rings 174.13 Gearboxes 184.14 Hoists and winches .184.15 Fire alarms 194.16 Emergency stop 194.17 Cable trays and wireways .204.18 Hydraulic electromechanical components 204.19 Alternators, generators and motors .204.20 Energy storage units 214.21 Discon

19、nect Devices .234.22 Charge controllers 235 Spacings 236 Components and Circuits Rated or Operating between 601 and 750 Volts 247 Grounding 258 Safety Related Controls System (SRCS) 258.1 General 258.2 Protection functions 268.3 Abnormal conditions for safety related controls system .289 Utility gri

20、d interaction .289.1 General 289.2 Performance 2910 Manual Shutdown .3011 Self-Excitation 3012 Ratings 30NOVEMBER 30, 2012 SMALL WIND TURBINE SYSTEMS - UL 6142 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULMARKINGS13 System and Subassembly

21、 Components .3114 Cautionary Markings 38INSTRUCTIONS15 General Installation, System, and Subassembly 41APPENDIX AStandards for ComponentsNOVEMBER 30, 2012SMALL WIND TURBINE SYSTEMS - UL 61424UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULPre

22、faceThis is the common AWEA and UL standard for Small Wind Turbine Systems. It is the first edition ofAWEA 6142, and the first edition of UL 6142.This common standard was developed and processed in accordance with the accredited standardsdevelopment procedures of Underwriters Laboratories Inc. (UL).

23、This standard has been approved by the American National Standards Institute as an American NationalStandard.Note: Although the intended primary application of this standard is stated in its scope, it is important to note that it remainsthe responsibility of the users of the standard to judge its su

24、itability for their particular purpose.UL effective dateAs of January 2, 2013 all products Listed or Recognized by UL must comply with the requirements in thisstandard.A UL effective date is established by Underwriters Laboratories Inc. and is not part of the ANSI approvedstandard.NOVEMBER 30, 2012

25、SMALL WIND TURBINE SYSTEMS - UL 6142 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULSMALL WIND TURBINE SYSTEMSINTRODUCTION1 Scope1.1 These requirements cover small wind turbine systems (WT) and electrical subassemblies. Withrespect to this

26、standard, small WT are considered to be wind turbines where a user or service personcannot or is not intended to enter the turbine to operate it or perform maintenance. These units areintended for use in stand-alone (not grid-connected) or utility interactive applications. Utility-interactive,grid-t

27、ied WT are operated in parallel with an electric power system (EPS) to supply power to commonloads.1.2 The WT power, control and protection systems are evaluated only to the extent that they functionwithin the manufacturers specified limits and response times. These control and protection functions

28、areevaluated with respect to risk of electric shock and fire. It is intended that the electrical subassemblies thataddress power transfer control and protection functions evaluated per this document are to be coordinatedwith the mechanical and structural limitations specified in AWEA 9.1, Small Wind

29、 Turbine Performanceand Safety Standard, the IEC 61400 series documents, or Germanischer Lloyd: Guideline for theCertification of Wind Turbines documents.1.3 These requirements do not cover:a) WT generating systems intended for off-shore installation.b) WT generating systems intended for hazardous l

30、ocations;c) Mechanical or structural integrity of the WT system or subassemblies;d) Verification that the manufacturer-defined controls and protection limits maintain the WTsystem within its safe mechanical and structural limits;e) Mechanical loading of ladders, hoist supports, elevator mounting mea

31、ns, scaffolding,personnel tie offs, or other personnel load-bearing functional parts.1.4 The wind turbine products covered by these requirements are intended to be installed in accordancewith the National Electrical Code, ANSI/NFPA 70.1.5 The evaluation of products to this standard includes evaluati

32、on of all features and functionsincorporated in or available for the turbine, or referred to in the documentation provided with the turbine,if these features or functions can affect compliance of the product with this standard.1.6 Turbines where a user or service person is intended or required to en

33、ter the turbine to operate orperform maintenance on the turbine are considered to be large wind turbine systems and are covered inthe Outline of Investigation for Wind Turbine Generating Systems, UL 6140.NOVEMBER 30, 2012SMALL WIND TURBINE SYSTEMS - UL 61426UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR

34、 FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL1.7 These requirements cover WT rated 1500 Vac or less.2 General2.1 Components2.1.1 Except as indicated in 2.1.2, a component of a product covered by this standard shall comply withthe requirements for that component. See Appendix A for

35、 a list of standards covering components usedin the products covered by this standard. See also Section 4, Special Components and Subassemblies ofWT.2.1.2 A component is not required to comply with a specific requirement that:a) Involves a feature or characteristic not required in the application of

36、 the component in theproduct covered by this standard, orb) Is superseded by a requirement in this standard.2.1.3 A component shall be used in accordance with its rating established for the intended conditions ofuse.2.1.4 Specific components are incomplete in construction features or restricted in p

37、erformancecapabilities. Such components are intended for use only under limited conditions, such as certaintemperatures not exceeding specified limits, and shall be used only under those specific conditions.2.1.5 Components and subassemblies of the overall WT shall be evaluated and found suitable fo

38、r theiroperation over the rated normal operating range of electrical and environmental conditions per the WTmanufacturers specifications. These components and subassemblies shall also perform per themanufacturers specifications during defined abnormal conditions, such as turbine shut down andabnorma

39、l electric utility grid conditions.2.2 Units of Measurement2.2.1 Values stated without parentheses are the requirement. Values in parentheses are explanatory orapproximate information.NOVEMBER 30, 2012 SMALL WIND TURBINE SYSTEMS - UL 6142 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCT

40、ION OR DISTRIBUTION WITHOUT PERMISSION FROM UL2.3 Undated References2.3.1 Any undated reference to a code or standard appearing in the requirements of this standard shallbe interpreted as referring to the latest edition of that code or standard.3 Glossary3.1 For the purpose of this standard, the fol

41、lowing definitions apply.3.2 CHARGE CONTOLLER A device intended to control the charging process of storage batteries orother energy storage device.3.3 DIVERSION CHARGE CONTROLLER A charge controller that regulates the charging processby diverting power from energy storage to AC loads, DC loads, or t

42、o an EPS.3.4 DIVERSION LOAD An electrical load that consumes power diverted to it by a diversion chargecontroller or diversion load controller.3.5 DIVERSION LOAD CONTROLLER A regulation device or system that diverts wind generatoroutput power to AC loads, DC loads or to an EPS.3.6 DOWN TOWER Wind tu

43、rbine location that is at ground level or near ground level, such as thebase level of the turbine tower.3.7 ELECTRIC POWER SYSTEM (EPS) Equipment or facilities that deliver electric power to a load.The most common example of an EPS is an electric utility.3.8 MAXIMUM CURRENT(S) The maximum peak curre

44、nt(s) a wind turbine will produce. There maybe several maximum current ratings defined for a product or system, such as alternator/generatoroutput, inverter/converter output, and control output circuits.3.9 MAXIMUM OUTPUT POWER The maximum average power output a wind turbine in normalsteady-state op

45、eration will produce over a one minute period of time. Note that the peak power outputcan be greater.3.10 MAXIMUM VOLTAGE The maximum peak voltage a wind turbine will produce during operation,including open circuit conditions.3.11 NACELLE The housing or enclosure for the alternator and other wind tu

46、rbine parts that isgenerally located at the top of the tower.3.12 OVERVOLTAGE CATEGORY Grouping of products based on typical installed location withrespect to overvoltage protection and available energy:a) Category IV - Primary Supply Level. Overhead lines and cable systems including distributionand

47、 its associated overcurrent protective equipment (equipment installed at the serviceentrance).b) Category III - Distribution Level. Fixed wiring and associated equipment (not electrical loads)connected to the primary supply level, Category IV.c) Category II - Load Level. Appliances and portable equi

48、pment and the like connected to thedistribution level, Category III.NOVEMBER 30, 2012SMALL WIND TURBINE SYSTEMS - UL 61428UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULd) Category I - Signal Level. Special equipment or parts of equipment su

49、ch as low-voltageelectronic logic systems, remote controls, signaling and power limited (per Article 725 ofNational Electrical Code, ANSI/NFPA 70) circuits connected to the load level, Category II.3.13 POLLUTION Any addition of contaminants, solid, liquid or gaseous (ionized gases), andmoisture that may produce a reduction of dielectric strength or surface resistivity.3.14 POLLUTION DEGREE The level of pollution present at the location on or in a product wherethe clearance and creepage distance measurement