UL-2096-1999.pdf

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1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 2096 ISBN 0-7629-0406-2 Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment Copyright Underwriters Laboratories Inc. Provided by IHS under license with

2、ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL Copyright Underwriters Labora

3、tories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT P

4、ERMISSION FROM UL Underwriters Laboratories Inc. (UL) 333 Pfi ngsten Road Northbrook, IL 60062-2096 UL Standard for Safety for Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment, UL 2096 Second Edition, Dated July 22, 1999 Revisions: This Standard contains revi

5、sions through and including March 9, 2006. Summary of Topics These editorial revisions to UL 2096 replace all references to UL 1020, the Standard for Thermal Cutoffs for Use in Electrical Appliances and Components, with reference to UL 60691, the Standard for Thermal-Links Requirements and Applicati

6、on Guide. UL 1020 was withdrawn and superseded by UL 60691. UL Standards for Safety are developed and maintained in the Standard Generalized Markup Language (SGML). SGML - an international standard (ISO 8879-1986) - is a descriptive markup language that describes a documents structure and purpose, r

7、ather than its physical appearance on a page. Due to formatting differences resulting from the use of ULs new electronic publishing system, please note that additional pages (on which no requirements have been changed) may be included in revision pages due to relocation of existing text and reformat

8、ting of the Standard. Text that has been changed in any manner is marked with a vertical line in the margin. Changes in requirements are marked with a vertical line in the margin and are followed by an effective date note indicating the date of publication or the date on which the changed requiremen

9、t becomes effective. The revisions dated March 9, 2006 include a reprinted title page (page1) for this Standard. The revisions dated March 9, 2006 editorially replace all references to UL 1020 with the reference to UL 60691. The UL Foreword is no longer located within the UL Standard. For informatio

10、n concerning the use and application of the requirements contained in this Standard, the current version of the UL Foreword is located on ULStandardsInfoNet at: http:/ The master for this Standard at ULs Northbrook Office is the official document insofar as it relates to a UL service and the complia

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14、dopted revisions. MARCH 9, 2006 UL 2096tr1 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MA

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26、, fi gures, and/or other elements of the Standard having future effective dates as indicated in the note following the affected item. 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 REQUIREM

27、ENTS notice. New product submittals made prior to a specifi ed future effective date will be judged under all of the requirements in this Standard including those requirements with a specifi ed future effective date, unless the applicant specifi cally requests that the product be judged under the cu

28、rrent requirements. However, if MARCH 9, 2006 UL 2096tr2 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL

29、COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL the applicant elects this option, it should be noted that compliance with all the requirements in this Standard will be required as a condition of continued Listing and Follow-Up Services after th

30、e effective date, and understanding of this should be signifi ed in writing. Copyright 2006 Underwriters Laboratories Inc. This Standard consists of pages dated as shown in the following checklist: PageDate 1-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 9, 2006 4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 22, 1999 10. . . . . . . . . . . . . . . . . . . . . . .

32、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 9, 2006 11-51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 22, 1999 52.

33、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . March 9, 2006 53-170. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34、. . . . . . . . . . . . July 22, 1999 A1-A4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . July 22, 1999 MARCH 9, 2006 UL 2096tr3 Copyright Underwriters Laboratories Inc. Provided by IHS under lice

35、nse with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2006 UL 209

36、6tr4 No Text on This Page Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHOR

37、IZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JULY 22, 1999 (Title Page Reprinted: March 9, 2006) 1 UL 2096 Standard for Commercial/Industrial Gas and/or Oil-Burning Assemblies With Emission Reduction Equipment First Edition November, 1993 Second Edition July 22, 1999 An e

38、ffective date included as a note immediately following certain requirements is one established by Underwriters Laboratories Inc. Revisions of this Standard will be made by issuing revised or additional pages bearing their date of issue. A UL Standard is current only if it incorporates the most recen

39、tly adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. ISBN 0-7629-0406-2 COPYRIGHT 1993, 2006 UNDERWRITERS LABORATORIES INC. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Caro

40、lina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 9, 2006UL 20962 No Text on This Page Copyrig

41、ht Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 03:17:47 MDTNo reproduction or networking permitted without license from IHS -,-,- UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

42、DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS PART I ALL EQUIPMENT INTRODUCTION 1 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 2 General . . . . . . . . . . . . . . . . . . . . .

43、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 2.1 Units of measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 2.2 Components . . . . . . . . . . . . . .

44、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 3 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 CONSTRUCTION 4 General . . .

45、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20 5 Corrosion Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46、. .21 6 Protection of Users and Service Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 7 Enclosures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

47、 . .25 7.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 7.2 Accessibility of uninsulated live parts and fi lm-coated wire general . . . . . . . . . . . . . . . . .29 7.3 Doors and covers . . . .

48、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 7.4 Field wiring system connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 8 Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 8.1 General . . . . . . . . . . . .