UL 372-2007 UL Standard for Safety Automatic Electrical Controls for Household and Similar Use C Part 2 Particular Requirements for Burner Ignition Systems and Components (Sixth Edud.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 372 Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition Systems and ComponentsUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER R

2、EPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition

3、Systems and Components,UL 372 Sixth Edition, Dated July 31, 2007 Summary of Topics This revision of UL 372 is being issued to remove the ANSI approval. No changes in requirements are involved. As noted in the Commitment for Amendments statement located on the back side of the title page, UL, CSA, an

4、d CSA America are committed to updating this harmonized standard jointly. However, the revision pages dated July 27, 2012 will not be jointly issued by UL, CSA, and CSA America, as these revision pages only address the removal of the ANSI approval from UL 372. Text that has been changed in any manne

5、r or impacted by ULs electronic publishing system is marked with a vertical line in the margin. 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 with

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9、ys fees) resulting from any 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 futur

10、e effective dates as indicated 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that have been revised and that have a future effective date are located after the Standard, and are preceded by a SUPERSEDED REQUIREMENTS notice. The following table lists the future effective dates with the correspondin

11、g item. JULY 27, 2012 UL 372 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Future Effective Date References To be determined Sixth Edition JULY 27, 2012 UL 372 tr2UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRI

12、BUTION WITHOUT PERMISSION FROM UL Canadian Standards Association CSA C22.2 No. 199 Third Edition CSA America ANSI Z21.20 Fifteenth Edition Underwriters Laboratories Inc. UL 372 Sixth Edition Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Igniti

13、on Systems and Components July 31, 2007 (Title Page Reprinted: July 27, 2012)UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Commitment for Amendments This standard is issued jointly by Canadian Standards Association (CSA), CSA America, and

14、Underwriters Laboratories Inc. (UL). Comments or proposals for revisions on any part of the standard may be submitted to CSA or UL at any time. Revisions to this standard will be made only after processing according to the standards development procedures of CSA and UL. CSA and UL will issue revisio

15、ns to this standard by means of a new edition or revised or additional pages bearing their date of issue. CSA and UL are separate and independent entities and each is solely responsible for its operations and business activities. The CSA trade names and trademarks depicted in this document are the s

16、ole property of the Canadian Standards Association (CSA). The UL trade names and trademarks depicted in this document are the sole property of Underwriters Laboratories Inc. (UL). ISBN 978-1-55436-934-8 2007 Canadian Standards Association All rights reserved. No part of this publication may be repro

17、duced in any form whatsoever without the prior permission of the publisher. To purchase CSA Standards and related publications, visit CSAs Online Store at www.ShopCSA.ca or call toll-free 1-800-463-6727 or 416-747-4044. Copyright 2012 Underwriters Laboratories Inc. Comments or proposals for revision

18、s 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 Standards, visit m-, or call them at 1-888-UL33503 or 1-888-853-3503.UL COPYRIGHTED MATERI

19、AL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS Preface .7 1 Scope and normative references 9 1.5.1 Normative references 11 2 Denitions 14 2.1 Denitions relating to ratings, voltages, currents and wattages 14 2.2 Denitions of types of control according

20、to purpose 15 2.3 Denitions relating to the function of controls .16 2.4 Denitions relating to disconnection and interruption .21 2.5 Denitions of types of control according to construction 21 2.7 Denitions relating to protection against electric shock .21 2.8 Denitions relating to component parts o

21、f controls .21 2.9 Denitions of types of terminals and terminations of controls 21 2.10 Denitions relating to the connections to controls .22 2.13 Miscellaneous denitions 22 2.101 Denitions relating to the type of burner ignition .22 3 General requirements 24 4 General notes on tests .24 4.1 Conditi

22、ons of test 24 4.2 Samples required 25 4.3 Instructions for tests .25 5 Rating (See 1.2) .25 6 Classication 25 6.3 According to their purpose 26 6.5 According to the control pollution situation 26 6.6 According to method of connection 27 6.8 According to protection against the risk of electrical sho

23、ck 27 6.10 According to number of cycles of actuation (M) of each manual action 27 6.11 According to number of automatic cycles (A) of each automatic action 27 6.14 According to period of electrical stress across insulating parts supporting live parts and between live parts and earthed metal .28 6.1

24、5 According to construction .28 6.101 According to type of fuel .28 7 Information 29 7.2 Methods of providing information 29 7.3 Class II symbol 32 7.4 Additional requirements for marking .32 8 Protection against the risk of electric shock .35 8.1 General requirements 35 8.3 Capacitors 36 9 Provisio

25、ns for bonding and earthing 37 9.1 General requirements 37 9.3 Adequacy of earth connections .39 10 Terminals and terminations 40 10.2 Terminals and terminations for internal conductors .41 11 Constructional requirements 42 11.1 Materials 42 11.2 Protection against the risk of electric shock 42 11.3

26、 Actuation and operation .43 11.4 Actions 46 JULY 25, 2011 CSA C22.2 NO. 199 ANSI Z21.20 UL 372 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 11.5 Openings in Enclosures .46 11.6 Mounting of controls 46 11.9 Inlet openings 47 11.10 Inlets

27、 and socket-outlets .47 11.11 Requirements during mounting, maintenance and servicing 47 11.101 Flame detector constructional requirements .50 12 Moisture resistance .51 12.2 Protection against humid conditions 51 13 Electric strength and insulation resistance .52 13.2 Electric strength 52 14 Heatin

28、g 54 14.4 Addition: 55 15 Manufacturer Deviation and Drift 58 15.5 Operating times 59 15.6 Operating sequence 60 15.7 Flame detector operating characteristics and proved igniters 61 16 Not Applicable 61 17 Endurance .61 17.1.3 Test sequence and conditions 61 17.2 Electrical conditions for tests .62

29、17.3 Thermal conditions for tests .62 17.16 Tests for particular purpose controls .64 18 Mechanical strength .66 18.1 General requirements .66 18.2 Impact resistance 66 18.4 Alternate compliance Impact resistance .67 18.9 Actuating member and actuating means 67 18.10A.1 Windows 68 19 Threaded parts

30、and connections 68 19.2 Current-carrying connections 69 20 Creepage distances, clearances and distances through insulation 69 20.3.23 Separation of circuits .78 21 Resistance to heat, re and tracking See 11.1. .78 22 Resistance to corrosion 79 22.1 Resistance to rusting .79 23 Radio interference pro

31、tection .79 24 Components .79 25 Normal Operation .81 26 Electromagnetic compatibility (EMC) requirements immunity .81 27 Abnormal operation .81 27.3 Over-voltage and under-voltage test (See 15.5) 81 28 Guidelines for use of electronic disconnection 81 29A Construction/performance for pilot burners,

32、 oxygen depletion systems (ODS) and other components 81 29A2.1 Construction Requirements .81 29A4.1 Construction Requirements .85 30A Manufacturing and Production Tests .91 JULY 31, 2007 CSA C22.2 NO. 199 ANSI Z21.20 UL 372 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBU

33、TION WITHOUT PERMISSION FROM UL Annex A Indelibility of Markings Annex C Annex D Annex E Annex F Annex G Annex H (normative) Requirements for electronic systems and components(Also see clauses 12, Moisture Resistance, and 17, Endurance.) H2 Denitions .96 H2.4 Denitions relating to disconnection and

34、interruption .96 H2.5 Denitions of type of control according to construction 96 H2.20 Denitions of software terminology General 96 H4 General notes on test .96 H6 Classication .97 H6.4 According to features of automatic action .97 H6.18 According to software class 97 H7 Information 97 H11 Constructi

35、onal requirements 97 H11.2 Protection against the risk of electric shock 97 H11.12 Controls using software .98 H13 Not Applicable. 99 H20 Not Applicable. .99 H21 Not Applicable. 99 H25 Not Applicable. 99 H26 Electromagnetic compatibility (EMC) requirements immunity 99 H26.2 Replacement: 99 H26.5 Tes

36、t of the inuence of voltage dips and short voltage interruptions in the power supply network .100 H26.8.4 Severity levels .102 H26.8.5 Test procedure 103 H26.9 Fast transient burst test 103 H26.10 Ring wave test .104 H26.11 Electrostatic discharge test 105 H26.12 Radiated electromagnetic eld test 10

37、6 H27 Abnormal Operation 108 H27.1.3.1 Guidelines for the tests of H27.1.3 110 H27.1.3.102 Systems without self checking feature 110 H27.1.3.103 Systems with self-checking features 111 H27.1.3.104 Checking circuits .112 H27.1.4 Electronic circuit fault conditions .112 H28 Not Applicable. .112 JULY 2

38、5, 2011 CSA C22.2 NO. 199 ANSI Z21.20 UL 372 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Annex J Annex AA (normative) Failure modes of electrical/electronic system components Annex BB Annex CC Additional markings for independently mount

39、ed controls Annex DD Coverage for Solid-State Oil Igniters DD.1 Scope .117 DD.2 Denitions .117 DD.3 General Requirements 117 DD.4 Construction .117 DD.5 Tests .118 Annex EE (informative) Appendix A INDEX TO DEFINITIONS (This Appendix is informative and not part of the standard.) Appendix B FAILURE M

40、ODES AND EFFECT ANALYSIS JULY 31, 2007 CSA C22.2 NO. 199 ANSI Z21.20 UL 372 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Preface This ANSI Standard, ANSI Z21.20, Automatic Electrical Controls for Household and Similar Use Part 2: Particu

41、lar Requirements for Burner Ignition Systems and Components, is to be used in conjunction with the third edition of UL 60730-1A. The requirements for burner ignition systems and components are contained in this Part 2 Standard and UL 60730-1A. This CSA Standard, CSA C22.2 No. 199, Automatic Electric

42、al Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition Systems and Components, is to be used in conjunction with CAN/CSAE60730-1. The requirements for burner ignition systems and components are contained in this Part 2 Standard and CAN/CSAE60730-1. This UL Stan

43、dard 372, Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition Systems and Components, is to be used in conjunction with the third edition of UL 60730-1A. The requirements for burner ignition systems and components are contained in this Part

44、 2 Standard and UL 60730-1A. Requirements of this Part 2 Standard supplement or modify the requirements of UL 60730-1A and CAN/CSAE60730-1. Where a particular subclause of UL 60730-1A and CAN/CSAE60730-1 is not mentioned in this Part 2 Standard, that subclause applies as far as reasonable. NOTE: The

45、 following numbering system is used: Subclauses that are numbered starting from 101 are additional to those in Part 1. Those provisions throughout this publication which include uppercase A, B or C in the numbering system are coverage included in the proposed harmonized standard which was added from

46、 ANSI Z21.20, UL 372 or UL 8730. The text, gures and tables of IEC publication Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition Systems and Components, IEC 60730-2-5, copyright 2000, are used in this Standard with consent of the IEC and

47、the American National Standards Institute (ANSI). The IEC copyrighted material has been reproduced with permission from ANSI. ANSI should be contacted regarding the reproduction of any portion of the IEC material. Copies of IEC Publication 60730-2-5 may be purchased from ANSI, 25 West 43rd Street, N

48、ew York, New York, 10036, (212) 642-4900. This is a common CSA America, Inc., CSA and UL Standard for Automatic Electrical Controls for Household and Similar Use Part 2: Particular Requirements for Burner Ignition Systems and Components, ANSI Z21.20/CSA C22.2 No. 199/UL 372. It is the fteenth editio

49、n of ANSI Z21.20, the third edition of CSA C22.2 No. 199, and the sixth edition of UL 372. This edition of ANSI Z21.20 supersedes the previous edition published in 2005. This edition of CSA C22.2 No. 199 supersedes the previous edition published in 1989. This edition of UL 372 supersedes the previous edition published in 1994. Although the CSA and UL standards contain identical requirements, and identical publication dates, the presentation a