UL-1711-1999.pdf

《UL-1711-1999.pdf》由会员分享，可在线阅读，更多相关《UL-1711-1999.pdf（66页珍藏版）》请在三一文库上搜索。

1、Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or networking permitted without license from IHS -,-,- STD*UL 1711-ENGL 1779 9275775 0781781 134 P underwriters Lab

2、oratories Inc. 8 Northbrook, Illinois (847) 272-8800 Melville, New York. (516) 2714200 Santa Clara, California * (408) 985-2460 Research Triangle Park, North Carolina a (91 9) 549-1 400 Camas, Washington* (360) 817-5500 Underwriters Laboratories Inc., founded in 1894, is chartered as a not-for-profi

3、t organization without capital stock, under the laws of the State of Delaware, to establish, maintain, and operate laboratories for the examination and testing of devices, systems and materials to determine their relation to hazards to life and property, and to ascertain, define and publish standard

4、s, classifications and specifications for materials, devices, products, equipment, constructions, methods, and systems affecting such hazards. UL Standards for Safety are developed under a procedure which provides for participation and comment from the affected public as well as industry. The proced

5、ure takes into consideration a survey of known existing standards and the needs and opinions of a wide variety of interests concerned with the subject matter of the standard. Thus manufacturers, consumers, individuals associated with consumer-oriented organizations, academicians, government official

6、s, industrial and commercial users, inspection authorities, insurance interests and others provide input to UL in the formulating of UL Standards for Safety, to keep them consonant with social and technological advances. A not-for-profit organization dedicated to public safety and committed to quali

7、ty service Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-UL 3733-ENGL 3777 7275775 0783782 07U Februar

8、y 18,1999 - UL 1711 trl Underwriters Laboratories Inc. (UL) 333 Pfingsten Road Northbrook, IL 60062-2096 UL Standard for Safety Amplifiers for Fire Protective Signaling Systems, UL 171 1 for Third Edition, Dated February 18, 1999 A change is indicated by a note following the affected item. The note

9、is preceded and followed by an asterisk. The new and/or revised requirements are substantially in accordance with ULs Bulletin on this subject dated September 24, 1998. The bulletin is now obsolete and may be discarded. The master for this Standard at ULs Northbrook Office is the official document i

10、nsofar as it relates to a UL service and the compliance of a product with respect to the requirements for that product and service, or if there are questions regarding the accuracy of this Standard. ULs Standards for Safety are copyrighted by UL. Neither a printed copy of a Standard, nor the distrib

11、ution diskette for a Standard-on-Diskette and the file for the Standard on the distribution diskette should be altered 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. All rights reserved. No par

12、t 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 without prior permission of UL. Revisions of UL Standards for Safety are issued from time to time. A UL Standard for Safety is

13、current only if it incorporates the most recently adopted revisions. 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 fitness for any purpose. In no event will UL be liable for any

14、special, incidental, consequential, indirect or similar damages, including loss o f profits, 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 has been advised of the possibility of such dam

15、age. In no event shall ULs liability for any damage ever exceed the price paid for this Standard, regardless of the form of the claim. UL will attempt to answer support requests concerning Wordperfect, Envoy, and Standards-on-Diskette. However, this support service is offered on a reasonable efforts

16、 basis only, and UL may not be able to resolve every support request. UL supports a Standards-on-Diskette only if it is used under the conditions and operating systems for which it is intended. ULs support policies may change from time-to-time without notification. UL reserves the right to change th

17、e format, presentation, file types and formats, delivery methods and formats, and the like of both its printed and electronic Standards without prior notice. Standards-on-Diskette purchasers agree to defend, indemnify, and hold UL harmless from and against any loss, expense, liability, damage, claim

18、, or judgement (including reasonable attorneys fees) resulting from any error or deviation introduced while purchaser is storing a Standard-on-Diskette on the purchasers computer system. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State Unive

19、rsity/5618801100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or networking permitted without license from IHS -,-,- STD-UL L7LL-ENGL 1Y77 9275795 0781783 TU7 tr2 February 18, 1999 - UL 1711 If a single-user version Standards-on-Diskette was purchased, one copy of this Standard may be stor

20、ed on the hard disk of a single personal computer, or on a single LAN file-server or the permanent storage device of a multiple-user computer in such a manner that this Standard may only be accessed by one user at a time and for which there is no possibility of multiple concurrent access. The origin

21、al distribution diskette should be stored in a safe place. If a multiple-user version Standards-on-Diskette was purchased, one copy of the Standard may be stored on a single LAN file-server, or on the permanent storage device of a multiple-user computer. The number of concurrent users shall not exce

22、ed the number of users authorized for the Standards-on-Diskette version. The original distribution diskette should be stored in a safe place. Standards-on-Diskette are intended for on-line use, such as for viewing the requirements of a Standard, conducting a word search, and the like. Only one copy

23、of the Standard may be printed from each single- user version of a Standards-on-Diskette. Only one copy of the Standard may be printed for each authorized user of a multiple-user version of a Standards-on-Diskette. An employee of an organization purchasing a Standard-on-Diskette can make a copy of t

24、he page or pages being viewed for their own fair and/or practical internal use. Because of differences in the computer/software/printer setup used by UL and those of Standards-on-Diskette purchasers, the printed copy obtained by a purchaser may not look exactly like the on-line screen view or the pr

25、inted Standard. The requirements in this Standard are 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 note following the affected item. The prior text for requirements that have been revise

26、d and that have a future effective date are located after the Standard, and are preceded by a “SUPERSEDED REQUIREMENTS“ notice. New product submittals made prior to a specified future effective date will be judged under all of the requirements in this Standard including those requirements with a spe

27、cified future effective date, unless the applicant specifically requests that the product be judged under the current requirements. However, if 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

28、 Listing, Recognition and Follow-Up Services after the effective date, and understanding of this should be signified in writing. Copyright 1999 Underwriters Laboratories Inc. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/561880

29、1100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or networking permitted without license from IHS -,-,- FEBRUARY 18, 1999 I UL 1711 Standard for Amplifiers for Fire Protective Signaling Systems First Edition - January, 1987 Second Edition - August, 1994 Third Edition February 18, 1999 An

30、effective 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 rece

31、ntly adopted revisions, all of which are itemized on the transmittal notice that accompanies the latest set of revised requirements. ISBN 1-7629-0357-0 COPYRIGHT 1987,1999 UNDERWRITERS LABORATORIES INC. Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Caro

32、lina State University/5618801100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or networking permitted without license from IHS -,-,- 2 AMPLIFIERS FOR FIRE PROTECTIVE SIGNALING SYSTEMS . UL 1711 FEBRUARY 18. 1999 CONTENTS FOREWORD INTRODUCTION I Scope . . . . . . . . . . . . . . . . . . . .

33、 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34、. . . . . . . . . . . . . . . . . . 6 INSTRUCTIONS AND DRAWINGS 4 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 CONSTRUCTION ASSEMBLY 5 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35、. . . . . . . . . . . . . . . . . . . . 7 6 Protection of Service Personnel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7 Electrical Supervision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 8 Enclosures . .

36、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 9 Electric Shock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 10 Protection Against Corrosion . . . . . . . . . . . . . . . .

37、. . . . . . . . . . . . . . . . . . . . . . . . . 17 FI ELD-WI RI NG CONNECTIONS 11 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 12 Field-Wiring Cornpariment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38、. . . . . . . . . . . 18 13 Power-Limited Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 14 Field-Wiring Terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 15 Leads . . . . . . . . . . . .

39、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 16 Cords and Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 17 Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

40、. . . . . . . . . . . . . . . . . . . 21 INTERNAL WIRING AND ASSEMBLY 18 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 19 Separation of Circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

41、. . . . . . . 23 20 Bonding for Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 COMPONENTS . ELECTRICAL 21 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 22 Overcurrent

42、Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 23 Semiconductors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 24 Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

43、 . . . . . . . . . . . . . . . . . . . . . . . . 27 25 Transformers and Relays . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 26 Printed-Wiring Boards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 27 Spacings

44、. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Copyright Underwriters Laboratories Inc. Provided by IHS under license with ULLicensee=North Carolina State University/5618801100 Not for Resale, 10/20/2006 02:02:12 MDTNo reproduction or

45、 networking permitted without license from IHS -,-,- . STD-UL 1711-ENGL 1777 7275775 078L78b 7Lb D FEBRUARY 18. 1999 AMPLIFIERS FOR FIRE PROTECTIVE SIGNALING SYSTEMS . UL 1711 3 OPERATING COMPONENTS 28 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

46、. . . . . . . . . . . 29 PERFORMANCE 29 Test Samples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 30 Test Voltages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 31 Waveform Anal

47、ysis Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 32 Power Inputl Output Characteristics Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 33 Variable Voltage Operation Test . . . . . . . . . . . . . . . . . . . . . . . . . .

48、. . . . . . . . . . . . 31 34 Electrical Supervision Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 35 Harmonic Distortion Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 36 Variable Ambient Temperature Tes

49、t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 37 Humidity Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 38 Electric Shock Current Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .