IEEE Electric Equipment and for the Evaluation of Electrical Insulation.pdf

1、The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USACopyright 2005 by the Institute of Electrical and Electronics Engineers, Inc.All rights reserved. Published 30 April 2001. Printed in the United States of America.Print: ISBN 0-7381-2716-7 SH94898PD

2、F: ISBN 0-7381-2717-5 SS94898No part of this publication may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher.IEEE Std 1-2000 (R2005)(Revision of IEEE Std 1-1986)IEEE Recommended PracticeGeneral Principles for Temperatur

3、e Limits in the Rating of Electrical Equipment and for the Evaluation of Electrical InsulationSponsorIEEE Standards Coordinating Committee 4, Insulation Systemsof theIEEE Power Engineering SocietyReaffirmed 22 September 2005Approved 7 December 2000IEEE-SA Standards BoardAbstract: This recommended pr

4、actice is intended to serve in the preparation of standards that areprincipally concerned with the thermal endurance of EIM and simple combinations of suchmaterials, with the establishment of limiting temperatures of EIS, and with the provision of generalprinciples for thermal classification of EIS.

5、Keywords: aging factors, EIM, EIS, electrical insulating material, electrical insulating system,electrical properties, electrical stress, environmental stress, factor of influence, hottest-spot temper-ature, mechanical properties, mechanical stress, observable temperature rise, relative temperaturei

6、ndex, temperature index, temperature limits, thermal aging, thermal evaluation, voltage stressIEEE Standardsdocuments are developed within the IEEE Societies and the Standards Coordinating Committees of theIEEE Standards Association (IEEE-SA) Standards Board. The IEEE develops its standards through

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23、se patents that are brought to its attention.Copyright 2001 IEEE. All rights reserved.iiiIntroduction(This introduction is not a part of IEEE Std 1-2000, IEEE Recommended PracticeGeneral Principles for TemperatureLimits in the Rating of Electrical Equipment and for the Evaluation of Electrical Insul

24、ation.)There is general agreement from experience that a number of service stresses influence the service life ofelectrical insulation in electric equipment. The purpose of IEEE Std 1-2000 is to provide guidance for thepreparation of thermal-aging test procedures to determine the temperature index (

25、TI) of electrical insulatingmaterials (EIM) and the thermal class of electrical insulation systems (EIS).The main changes from IEEE Std 1-1986 are as follows:a) The title was changed from a “Standard” to a “Recommended Practice” to be consistent with thepredominant verb used in the text, “should.”b)

26、 The table of thermal classification, now Table 3, was modified to include both numerical and letterdesignations and all currently recognized temperature classes.c) The multifactor testing portion of Clause 8 has been deleted because it is beyond the scope of thisrecommended practice, which covers t

27、emperature limits.This revision has been made with the intent of harmonization with IEC 60085-1984, Thermal evaluation andclassification of electrical insulation, and IEC 60505-1999, Evaluation and qualification of electrical insula-tion systems. This work was done by a working group of IEEE Standar

28、ds Coordinating Committee 4(SCC4), Insulation Systems. The members of the SCC4 working group are also technical experts of IEC TC98, Electrical Insulation Systems. TC 98 plans to draft a revision to IEC 60085-1984.At the time this revision was completed, the SCC4 working group had the following memb

29、ership:Paulette A. Payne,ChairpersonAt the time this document was approved, the IEEE SCC4 had the following membership:Paulette A. Payne,ChairpersonR. J. Mayschak,SecretaryThe following members of the balloting committee voted on this standard:Robert J. Mayschak Stephen J. Watson Richard F. Weddleto

30、nE. A. BoulterGeorge I. DuncanS. L. DyrnesA. IversenK. N. MathesE. J. VanvoorenLoren B. WagenaarStephen J. WatsonRichard F. WeddletonM. WinkelerE. A. BoulterJerry L. CorkranGeorge I. DuncanAlan M. IversenTim D. LewisT. V. OommenPaulette A. PayneWilliam R. SimpsonLoren B. WagenaarRichard F. Weddleton

31、ivCopyright 2001 IEEE. All rights reserved.When the IEEE-SA Standards Board approved this recommended practice on 7 December 2000, it had thefollowing membership:Donald N. Heirman,ChairJames T. Carlo,Vice ChairJudith Gorman,Secretary*Member EmeritusAlso included are the following nonvoting IEEE-SA S

32、tandards Board liaisons:Alan Cookson, NIST RepresentativeDonald R. Volzka, TAB RepresentativeCatherine BergerIEEE Standards Project EditorSatish K. AggarwalMark D. BowmanGary R. EngmannHarold E. EpsteinH. Landis FloydJay Forster*Howard M. FrazierRuben D. GarzonJames H. GurneyRichard J. HollemanLowel

33、l G. JohnsonRobert J. KennellyJoseph L. Koepfinger*Peter H. LipsL. Bruce McClungDaleep C. MohlaJames W. MooreRobert F. MunznerRonald C. PetersenGerald H. PetersonJohn B. PoseyGary S. RobinsonAkio TojoDonald W. ZipseCopyright 2001 IEEE. All rights reserved.vContents1. Overview. 11.1 Scope. 11.2 Purpo

34、se. 22. References. 23. Definitions. 23.1 General definitions. 23.2 Definitions related to electric equipment. 33.3 Definitions related to the evaluation of thermal capability. 44. General concepts. 54.1 Temperature measurement. 54.2 Additional aging factors. 54.3 Limits of temperature. 65. Basic co

35、nsiderations in the preparation of standards. 75.1 Service experience . 75.2 General principles for temperature limits .85.3 Purpose of life testing . 86. Evaluation of the thermal capability of EIM . 86.1 Thermal aging . 96.2 TI and relative temperature index (RTI) of an EIM . 106.3 Determination o

36、f TI for EIM by test.116.4 Determination of material TI by experience. 127. Limiting temperatures and their measurement for EIS. 127.1 Derivation of temperature rise . 127.2 Methods of temperature determination. 157.3 Effects of altitude. 168. Thermal evaluation of EIS. 178.1 Temperature classificat

37、ion of EIS. 178.2 EIS classes . 188.3 Thermal evaluation test procedures for EIS. 18Annex A (informative) Illustration of thermal endurance graph, TI, RTI, and HIC . 21Annex B (informative) Bibliography. 23Copyright 2001 IEEE. All rights reserved.1IEEE Recommended PracticeGeneral Principles for Temp

38、erature Limits in the Rating of Electrical Equipment and for the Evaluation of Electrical Insulation1. OverviewThese principles are intended to serve in the preparation of IEEE and other standards that deal with theselection of temperature limits and the measurement of temperature for specific types

39、 of electric equipment.They include an outline of the fundamental considerations and a review of the elements to be considered inapplying the principles to specific cases.1.1 ScopeGuiding principles are included for the development of test procedures for Thermal evaluation of electrical insulating materials (EIM) Thermal evaluation of electrical insulation systems (EIS) Thermal classification1of EIS for rating ele